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Dr Manoj Modi

Acropolis Institute of Technology and Research, Mechanical Engineering, Faculty Member

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Dr. Manoj Modi is currently working at the Department of Mechanical Engineering in Acropolis Institute of Technology and Research. Dr. Manoj Modi received his Ph.D. from MNIT Jaipur, India. Manoj does research in Mechanical Engineering, Manufacturing Engineering, Advanced Machining Process, Hybrid Machining Process, and Materials Engineering etc. His most recent publication is “Effect of aluminium and chromium powder mixed dielectric fluid on electrical discharge machining effectiveness”.
Phone: 09993650228
Address: H.No. 440, Gali No. 10, Goyal Vihar Colony,
Near Khajrana Ganesh Ji Mandir

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Kampala International University-WC

JAHIER ABBAS SHAAIKH

Jawaharlal Nehru Technological University Anantapur

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Universiti Kuala Lumpur

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Papers by Dr Manoj Modi

influence of viscosity variations on coefficient of friction in pipe flow with different pipe materials and flow rates using taguchi design method

International Journal of Engineering and Advanced Technology, 2020

 Abstract: The friction and friction factors are critical factors in flow through pipes, and hea... more  Abstract: The friction and friction factors are critical factors in flow through pipes, and heat ex-changer etc. The minimal friction is not only beneficial for pumping cost perspective, but also it reduces the loss of energy. All experimental tests were performed in accordance to Taguchi L9 orthogonal array on cast iron, aluminum, and copper pipes to study the effect of variations of viscosity, flow rates, and pipe materials on the friction factor.

Powder-Mixed Electro-Discharge Diamond Surface Grinding Process: Modelling, Comparative Analysis and Multi-Output Optimisation Using Weighted Principal Components Analysis

SV-JME, 2013

Powder-mixed electro-discharge diamond surface grinding (PMEDDSG) is an efficient process for sha... more Powder-mixed electro-discharge diamond surface grinding (PMEDDSG) is an efficient process for shaping hard materials, such as Ti-6Al-4V. It is widely used in many applications, including aerospace industries and medical implants. This process is a combination of conventional surface grinding with electrical spark machining with the presence of powder in dielectric fluid. In this paper, a PMEDDSG setup has been designed and fabricated in house. Chen et al. [1] experimented with electrical discharge machining of Ti-6Al-4V. They explained that the removal of material in distilled water occurs due to melting, vaporization and crack propagation, whereas in kerosene, it is due to melting and vaporization. They compared the material removal rate (MRR) and electrode wear ratio in the dielectric fluid and reported the effect of the dielectric fluid on the properties of the EDM-generated surface. Choudhury [2] conducted experiments on the EDDG of high-speed steel. He described how the MRR and grinding forces affected by input machining variables, i.e. current (I), voltage (V), pulse duration (T on) and duty cycle (DC). Koshy et al. [3] performed experiments on the EDDG of high-speed steel and explained that how the grinding force and the rate of material removal are influenced by ampere-current and the wheel revolution per minute. Koshy et al. [4] carried out experimentation on electric discharge diamond grinding of WC-Co and explained that how the grinding force and rate of material removal was influenced by ampere-current and the on-length of the pulse. Kansal et al. [5] explained that MRR and surface roughness are affected by mixing silicon powder in the kerosene of the electric discharge machine. They selected EN-31 as a workpiece material and copper as an electrode material. Habib [6] formulated the models for MRR, the wear ratio of electrode, the gap size and surface roughness by using response surface methodology (RSM). The input machining variables were I, V and SiC % in aluminium. He performed the experiments on electrical discharge machining with an Al/Sic workpiece and copper as an electrode. Hewidy et al. [7] developed models using RSM in the wire EDM of Inconel 601 material. The input machining variables are I, duty factor, wire tension and water pressure whereas the responses are MRR, wear ratio and surface roughness. He reported that the RSM method has the advantage of interpreting the effect of each machining variable on the output response. Lin and Lin [8] applied the combined grey relational analysis-orthogonal array approach for the multi-output optimization of process parameters in electrical discharge machining of SKD11 alloy steel and reported that multi-output optimization problems Powder-mixed electro-discharge diamond surface grinding (PMEDDSG) is an efficient process for shaping hard materials, such as Ti-6Al-4V. Modelling, comparative analysis to study the behaviour of input variables against the responses for both processes, determination of optimum combination of parameters, and studying the effect of input variables on white recast layer thickness and finally on different surface generation during the PMEDDSG processing of Ti-6Al-4V are reported in this paper. The response surface methodology was used to develop the mathematical models of both the responses. Thirty-one experiments were performed on the PMEDDSG setup without powder-mixed dielectric fluid. Another thirty-two experiments were performed on the PMEDDSG setup with aluminium powder-mixed dielectric fluid. The current, pulse-duration, wheel-speed, duty-cycle and powder-concentration (considered only as an input variable with the powder-mixed dielectric fluid) were taken as input parameters. The material-removal-rate (MRR) and average-surface-roughness (R a) were measured as responses in both the process. The weighted principal components (WPC) analysis has been applied to find an optimum setting of PMEDDSG process parameters during multi-output optimisation. A total of 18 experiments were performed according to Taguchi L 18 orthogonal-array on the PMEDDSG setup. The optimum combination suggested by the WPC method was tested to obtain the optimum values of MRR and R a. The scanning electron microscopy images showed that the surface view and white recast layer thickness of machined workpieces are largely influenced by ampere-current, pulse-duration, duty-cycle, wheel-speed and powder-concentration.

Abrasive Wear Behaviour of PTFE Filled E-Glass Fiber Reinforced Polyester Composites

IRJET, 2017

Polymer composites are replacing the conventional materials for use in different applications due... more Polymer composites are replacing the conventional materials for use in different applications due to their excellent corrosion resistant and good mechanical properties. Application of composite, where abrasive wear takes place. The composite were developed by compression moulding method and constituents were E-glass fiber, Polyester resins, Hardener (Methyl Ethyl Ketone Peroxide) were used 10:1 proportion to set the material. To enhance develop the self-lubricating property in material by addition of solid lubricant (PTFE) in various different proportion as filler material. Composite materials were developed with and without addition of filler material in different proportion. Developed composite materials samples were experimentally investigated for self-lubricating properties and analyze the effect of solid lubricant filler addition through Ducom abrasion were test. Experimental results were showed that 10% solid lubricant filled sample least wear out as in comparison of 20% filled and unfilled sample.

Modified Air Cooler With Split Unit For Humidity Control

by Dr Manoj Modi and V Patil

IJEDR, 2018

Energy consumption all over the world is increasing rapidly and there is pressing need to develop... more Energy consumption all over the world is increasing rapidly and there is pressing need to develop ways to conserve energy for future generation. The conventional refrigeration system consumes very large amount of power (about 1.5 KW). Also for cooling, Evaporative coolers are the better option. The cost of Evaporative coolers is low and also it consumes less power than that of AC. The main drawback of Evaporative cooler is that the air supplies by it has very large amount of Humidity. Due to which when an individual sits in the air of evaporative coolers, he fills stickiness on his body which is not comfortable condition. So this project works involves the manufacturing and design of the split unit which will not increase the humidity of air. It will maintain the room at comfort conditions by re-circulating the air in the room through split unit. INTRODUCTION The evaporative cooler was the subject of numerous U.S. patents in the twentieth century; many of these, starting in 1906, suggested or assumed the use of excelsior (wood wool) pads as the elements to bring a large volume of water in contact with moving air to allow evaporation to occur. A typical design, as shown in a 1945 patent, includes a water reservoir (usually with level controlled by a float valve), a pump to circulate water over the excelsior pads and a squirrel-cage fan to draw air through the pads and into the house. This design and this material remain dominant in evaporative coolers in the American Southwest, where they are also used to increase humidity. Energy consumption all over the world is increasing rapidly and there is a pressing need to develop ways to conserve energy for future generations. Researchers are forced to look for renewable sources of energy and ways to use available sources of energy in a more efficient way. Conventional refrigeration based vapour compression air conditioning systems consume a large portion of electrical energy produced mostly by fossil fuel. India's energy demands are expected to be more than double by 2030, and there is a pressing need to develop ways to conserve energy for future generations. This implies that we have to look for renewable sources of energy and use available sources of energy in a more efficient way. Thus energy consumption can be reduced drastically by using energy efficient appliances. In India, the Union ministry of power's research pointed out that about 20-25% of the total electricity utilized in government a building in India is wasted due to unproductive design, resulting in an annual energy related financial loss of about Rs 1.5 billion. Conventional heating ventilation and air conditioning systems consume approximately 50% of the building energy. Conventional refrigeration based vapour compression air conditioning systems consume a large portion of electrical energy produced mostly by fossil fuel. This type of air conditioning is therefore neither eco-friendly nor sustainable.

A COMPARATIVE STUDY OF THIRD-PARTY LOGISTICS PROVIDERS

ELK Asia Pacific Journal – Special Issue, 2019

With competitive pressures placing an increasing dependence on the ability of organizations to de... more With competitive pressures placing an increasing dependence on the ability of organizations to deliver customer-adapted products quickly and on time, logistics has been an area that has been subjected to investigation. While, there is a growing evidence of organizations increasingly seeking to outsource their logistics activities, there have been few comprehensive studies on the outsourcing of logistics in the Middle Eastern region. The purpose of this paper is to examine the usage of third-party logistics (3PL) services. In India the logistics industry is evolving rapidly and it is the interplay of infrastructure, technology and new types of service providers that will define whether the industry is able to help its customers, reduce their logistics costs and provide effective services. Third party logistics (3PL) is drawing attention at government, industrial, academicians and practitioner's levels. This project is an attempt to provide 3PL practices perspective in India. The project focuses on present extent of usage of third-party logistics services based on data collected from the working professionals in 3PL companies. Data analysis is done using SPSS software and descriptive statistics analysis, correlation, regression analysis and reliability test of collected data is performed. This has helped to compare the best third-party logistics provider in Indore and Nasik cities of India. Analysis shows that there are similarities on the use of contract logistics services in Madhya Pradesh and Maharashtra. These include the proportion of firms utilizing contract logistics, the extent of involvement of functional managers, and activities outsourced. Notable differences between the 3PL providers include process, and the benefits to the firms from the use of contract logistics.

INTEGRATED STATISTICAL METHODOLOGY FOR OPTIMIZING THE MACHINING PARAMETERS IN SiC POWDER MIXED – EDDSG PROCESS TO MACHINE Ti6Al4V

Materiali in tehnologije / Materials and technology, 2019

The objective of this research work was targeted to investigate the hybrid-statistical methodolog... more The objective of this research work was targeted to investigate the hybrid-statistical methodology to deduce the economical-machining-condition through multi-output optimization in silicon carbide powder mixed-Electro Discharge Diamond Surface Grinding of Ti6Al4V. In this work, Grey-Fuzzy based principal component analysis along with Taguchi's orthogonal array is utilised for the multi-output optimization of hybrid-machining process parameters for minimal surface roughness, minimal wheel-wear rate, and maximal material removal rate. Eighteen experiments have been conducted according to Taguchi's L18 orthogonal array on in-house-designed and fabricated powder mixed-Electro Discharge Diamond Surface Grinding setup. The single Multi-Output Performance Index is calculated by the aggregation of all multi-responses by using Grey-Fuzzy-Taguchi method based principal component analysis function. The optimum combination of process parameters and the effect of these parameters on the Multi-Output Performance Index are determined by the use of ANOVA analysis and response table. For the validation test, one additional confirmation experiment is conducted on this setup according to the derived optimal condition and the outcomes of the results showed satisfactory matching between the predicted and experimented result. The specific contribution of this research work is to develop and describe the procedure of integrated statistical methodology for multi-output optimization of machining parameters in powder mixed-Electro Discharge Diamond Surface Grinding of Ti6Al4V. This integrated statistical approach hybridizes the concepts of Grey Relational Analysis, Fuzzy, principal component analysis and Taguchi approach to find the optimum combination of machining parameters for economical machining. This optimum combination of process parameters supports engineers to establish an economical and effective process. Keywords: analysis of variance (ANOVA), powder mixed-electro discharge diamond surface grinding (PM-EDDSG), hybrid process, grey relational analysis, fuzzy, principal component analysis (PCA), Taguchi's method (TM), Ti-6Al-4V Pri~ujo~~lanek opisuje raziskavo hibridne statisti~ne metodologije za dolo~itev ekonomi~nih pogojev mehanske obdelave z ve~komponentno analizo optimizacije izhodnih podatkov bru{enja povr{ine Ti6Al4V zlitine s tako imenovanim postopkom PM-EDDSG (diamantno bru{enje povr{ine z elektro erozijo v me{anici prahu). V tem delu je uporabljena osnovna komponentna analiza, ki temelji na tako imenovani sivo-zabrisani logiki (angl.: Grey-Fuzzy) v kombinaciji s Taguchijevo ortogonalno matriko, s katero naj bi napovedali izhodne pogoje za doseganje minimalne povr{inske hrapavosti, minimalne obrabe brusilnega koluta in maksimalno hitrost odstranjevanja materiala pri hibridni mehanski obdelavi s PM-EDDSG postopkom. Avtorji so izvedli osemnajst eksperimentov v skladu s Taguchijevo L18 ortogonalno matriko na doma dizajniranem in izdelanem stroju za PM-EDDSG postopek. Posamezen ve~izhodni indeks u~inkovitosti (MOPI; angl.: Multi-Output Performance Index) so izra~unali z zdru`itvijo vseh ve~kratnih odzivov in z uporabo G-F-T metode (angl.: Grey-Fuzzy-Taguchi method), ki temelji na komponentni funkcijski analizi. Optimalno kombinacijo procesnih parametrov in vpliv teh parametrov na MOPI so dolo~ili z uporabo ANOVA analize in tabele odzivov. Kot validacijski test so izvedli {e en dodatni eksperiment na pri~ujo~i napravi pri dobljenih optimalnih pogojih. Rezultati preizkusa so pokazali zadovoljivo ujemanje med napovedanimi in z eksperimentom dobljenimi rezultati. Specifi~ni prispevek tega raziskovalnega dela je razvoj in opis postopka integrirane statisti~ne metodologije za ve~izhodno optimizacijo parametrov mehanske obdelave povr{ine Ti6Al4V zlitine s PM-EDDSG postopkom. Ta integrirani statisti~ni pristop zdru`uje koncepte sivo-zabrisane relacijske analize (angl.: Grey-Fuzzy Relational Analysis), osnovne komponentne analize in Taguchijeve metode za dolo~itev optimalne kombinacije procesnih parametrov ekonomi~ne mehanske obdelave. Ta optimalna kombinacija procesnih parametrov omogo~a procesnim in`enirjem uvajanje novega ekonomi~nega in u~inkovitega procesa. Klju~ne besede: analiza variance (ANOVA), diamantno bru{enje povr{ine z elektroerozijo v me{anici prahu (PM-EDDSG), hibridni proces, siva relacijska analiza, zabrisanost, osnovna komponentna analiza (PCA), Taguchijeva metoda (TM), Ti-6Al-4V

Study And Analysis Of Wire Electrical Discharge Machining And Its Process Parameters

by Dr Manoj Modi and Dr G Agarwal

IJSTR, 2019

Wire electrical release machining (Wire-EDM) is one of the generally acknowledged advanced machin... more Wire electrical release machining (Wire-EDM) is one of the generally acknowledged advanced machining procedures used to machine the parts with unpredictable shapes and profiles. The wire is gradually sustained through the material and the generated electrical releases among the wire and work-piece are responsible to cut the work piece. Wire is generally made of copper, molybdenum or tungsten, which changes electrical power to heat power. This thermal energy is utilized for cutting the materials. W-EDM appears a decent choice for machining the convoluted shapes for the solidify materials. The selection of machining parameters is important for powerful use of these parameters and it is likewise engaged with numerous responses. This paper manages the theoretical investigation of different procedure parameters in W-EDM and the responses. Streamlining of process parameters assumes a significant job to accomplish a best quality item at a sensible cost.

Parametric Optimization in Drilling of Al-SiC Composite Using Taguchi Method

IJSTR, 2019

Optimization is one of the best techniques used in manufacturing industries for improving quality... more Optimization is one of the best techniques used in manufacturing industries for improving quality of product with lower cost. This report describes the effective approach for the single response optimization of drilling parameters based on the Taguchi's method. This research work also reported about the influence of input process parameters i.e. spindle speed and tool diameter on the material removal rate (MRR). Taguchi L9 orthogonal array was used for planning and conduction of experiments. Analysis of Variance (ANOVA) was carried out to find which drilling parameters significantly affect the output response and it also determined the percentage contribution of individual parameter over the response.

Effect of aluminium and chromium powder mixed dielectric fluid on electrical discharge machining effectiveness

APEM, 2019

This article studied the impacts of using different powders on the productivity of electro discha... more This article studied the impacts of using different powders on the productivity of electro discharge machining (EDM) of Nimonic 8OA alloy. The powders used for experiments are chromium (Cr) and aluminium (Al), though these powders are in contrasts in their thermo-physical characteristics. With the mixing of these powders in dielectric fluid, effect on surface roughness (SR), material removal rate (MRR), and mechanism of the machining process have been studied in this research work. On going through the results of experiments , it was observed that even volumetric proportion of powders, size of molecules, its density, electric resistance, and heat conductivity of additives were vital parameters that altogether influenced the productivity of powder mixed-electro discharge machining (PMEDM) process. With addition of proper ratio of powders in dielectric fluid, it enhanced the material removal rate, and consequently, reduced the surface roughness. Under a similar molecule volumetric proportion tests, the minutes suspended molecule size of powder prompted the largest material removal rate and consequently, the surface roughness increased. Conclusion is that adding chromium powder improves to the highest material removal rate, but poor surface finish while adding aluminium powder has the reverse effects.

Effect of Preheated Pure Oxygen on IC Engine Performance using Heat Pipe Exhaust Heat Recovery Method

International Journal of Innovative Technology and Exploring Engineering (IJITEE), 2019

Nowadays, the requirements and dependency of people on vehicles are increasing day by day which l... more Nowadays, the requirements and dependency of people on vehicles are increasing day by day which lead to high emission of flue gases and it results in the severe environment pollution. Many researchers have done research to improve the efficiency of IC engine. The main reason for less efficiency is the incomplete combustion of fuel in the IC engine. To improve the efficiency, we carried out the experiments with two stroke petrol engine by supplying preheated pure oxygen instead of air. The oxygen is preheated by the exhaust heat recovery system using heat pipe. In this research work, engine performance is analyzed in two ways primarily by using the pure oxygen and secondly by using the pre-heated pure oxygen through heat pipe. The output response in this work is brake thermal efficiency without heat pipe (without inlet-air-preheating) and with heat pipe (with inlet air preheating). The output response is calculated with the use of numerical formula. Exhaust gases energy is used to preheat the inlet pure oxygen supplied to petrol engine with the help of heat pipe. A heat pipe without bend is used here in which working fluid is water. Experimental results show that there is an increase in brake thermal efficiency with use of heat pipe.

Fabrication Of Solar Operated Thermoelectric Refrigerartion System

IJSTR, 2019

In this research article, prototype of thermoelectric refrigeration system working has been desig... more In this research article, prototype of thermoelectric refrigeration system working has been designed and fabricated. This fabricated system is working on DC voltage, which is generated by the photo voltaic cells. The developed experimental prototype is having a refrigeration space of 1 liter capacity, which is refrigerated by using four numbers of Peltier module (Supercool : PE-063-10-13, Qmax=19W) and a heat sink fan assembly used (Model No: TDEX6015/TH/12/G, Rth=1.157 o C/W) to increase the heat dissipation rate from hot side of Peltier module. In the recent years, we have many problem such as energy crises and environment degradation due to the increasing emission of CO2 and ozone layer depletion has become the primarily concern in both the developed and developing countries. Our project utilizes the solar energy for its operation. Solar refrigeration using thermoelectric module is going to be one of the most cost effective, clean and environment friendly system. This project does not need any kind of refrigerant and mechanical device like compressor, prime mover, etc for its operation. The main purpose of this project is to provide refrigeration to the remote areas where power supply is not possible.

3 rd Party Logistics Providers: Comparative Study And Analysis By Using SPSS In Indian Market

IJSTR, 2019

With competitive pressures placing an increasing dependence on the ability of organizations to de... more With competitive pressures placing an increasing dependence on the ability of organizations to deliver customer adapted products quickly and on time, logistics has been an area that has been subjected to investigation. While, there is a growing evidence of organizations increasingly seeking to outsource their logistics activities, there have been few comprehensive studies on the outsourcing of logistics in the Middle Eastern region. The purpose of this paper is to examine the usage of third party logistics (3PL) services. In India the logistics industry is evolving rapidly and it is the interplay of infrastructure, technology and new types of service providers that will define whether the industry is able to help its customers, reduce their logistics costs and provide effective services. Third party logistics (3PL) is drawing attention at government, industrial, academicians and practitioner's levels. This project is an attempt to provide 3PL practices perspective in India. The project focuses on present extent of usage of third party logistics services based on data collected from the working professionals in 3PL companies. Data analysis is done using SPSS software and descriptive statistics analysis, correlation, regression analysis and reliability test of collected data is performed. This has helped to compare the best third party logistics provider in Indore and Nasik cities of India. Analysis shows that there are similarities on the use of contract logistics services in Madhya Pradesh and Maharashtra. These include the proportion of firms utilising contract logistics, the extent of involvement of functional managers, and activities outsourced. Notable differences between the 3PL providers include process, and the benefits to the firms from the use of contract logistics.

Minimization Of Traffic Congestion By Using Queuing Theory

IJSTR, 2019

This paper sets up the M/M/1 queuing model, analyses the traffic intensity of Palasia intersectio... more

Modeling and analysis of turning process on lathe machine by Taguchi and ANOVA approach

INTERNATIONAL JOURNAL OF SCIENTIFIC & TECHNOLOGY RESEARCH, 2019

In the today's competitive era, it is very important to an edge over the others to survive and fl... more In the today's competitive era, it is very important to an edge over the others to survive and flourish. One of the easiest yet most complicated areas to expertise is ‗fast delivery' and to obtain that the cycle time has to be reduced. Keeping this in mind certain investigations are carried out to increase the material removal rate. This research work explains the effects of certain lathe parameters namely Speed, Feed and Depth of Cut on the output parameter Material Removal Rate. A mild steel test piece is taken and different experiments are conducted on it by a nine foot conventional lathe machine by changing the input parameters using Taguchi methodology. Taguchi method is used to formulate the experimental layout. A Taguchi L9 design of experiment (DOE) and the analysis of variance (ANOVA) is applied to analyze the effect of each parameter on the response. Mathematical formula is also developed among the Speed, Feed and Depth of Cut and MRR. It will be found that these parameters have a significant influence on machining characteristic metal removal rate.

GREY-WPCA BASED PARAMETRIC-OPTIMIZATION AND MODELLING OF CHROMIUM POWDER MIXED SURFACE- ELECTRO DISCHARGE DIAMOND GRINDING OF INCONEL 600 USING RSM

Strojnícky časopis – Journal of MECHANICAL ENGINEERING, 2019

The PMS-EDDG is an effective hybrid process to beat the problems identified in machining of Incon... more The PMS-EDDG is an effective hybrid process to beat the problems identified in machining of Inconel 600 through the conventional machining process. This hybrid-machining-process is a combination of S-DG and Powder Mixed-EDM process. Modeling, comparative investigation, determination of optimal setting of process factors, and various surface developments in S-EDDG of Inconel 600 with chromium and absence of chromium-powder blended dielectric fluid (DF) have been narrated in this research work. One set of 31 experiments with chromium-powder and another set of 31 experiments without chromium-powder mixed DF was conducted on this setup in accordance with the CC -R-D plan of experimentation. The developed models through RSM support to investigate the behavior of input process-factors over the responses. The input factors in this research work are ampere-current (I), pulse-on-time (Ton), wheel speed (WS), and duty cycle (DC). The MRR and Ra are the output-responses in this machining process. The optimum setting of process-parameters is computed through the integrated Grey-Taguchi based WPCA-approach. The confirmation experiment is conducted on this setup at the optimum-condition and its results display the agreeable matching among the actual and predicted values. The WMPI is improved by 0.414. The SEM investigation has been conducted at the optimum-condition on the produced machined-surfaces and on the produced white recast-layer thickness.

Impact of Viscosity Variation, and Flow Rate on Coefficient of Discharge in Venturimeter Utilizing Taguchi Methodology

International Journal of engineering and advanced technology, 2020

Most of the industries are concerned with flow measurement and accurate measurement of fluid is i... more Most of the industries are concerned with flow measurement and accurate measurement of fluid is important to obtain specific proportion as per process requirement. Generally Venturimeter (VM) is utilized in enterprises due to notable highlights offered by it. VM works on the principle of pressure difference i.e. Bernoulli's principle. By varying cross sectional area of flow, it creates pressure difference along its length which is used to calculate theoretical discharge. Head loss in VM is less as compared to other flow measuring apparatus. Because of its specific geometry eddies formation is avoided causing less head loss. The coefficient of discharge (C d) is an important parameter always referred in case of flow measuring devices. For VM it varies from 0.95 to 0.99. Tests have been performed in accordance to Taguchi L9 O-A on cast iron pipe to examine the impact of variations of viscosity, and rates of flow on the Cd .

influence of viscosity variations on coefficient of friction in pipe flow with different pipe materials and flow rates using taguchi design method

International Journal of Engineering and Advanced Technology, 2020

 Abstract: The friction and friction factors are critical factors in flow through pipes, and hea... more  Abstract: The friction and friction factors are critical factors in flow through pipes, and heat ex-changer etc. The minimal friction is not only beneficial for pumping cost perspective, but also it reduces the loss of energy. All experimental tests were performed in accordance to Taguchi L9 orthogonal array on cast iron, aluminum, and copper pipes to study the effect of variations of viscosity, flow rates, and pipe materials on the friction factor.

Powder-Mixed Electro-Discharge Diamond Surface Grinding Process: Modelling, Comparative Analysis and Multi-Output Optimisation Using Weighted Principal Components Analysis

SV-JME, 2013

Powder-mixed electro-discharge diamond surface grinding (PMEDDSG) is an efficient process for sha... more Powder-mixed electro-discharge diamond surface grinding (PMEDDSG) is an efficient process for shaping hard materials, such as Ti-6Al-4V. It is widely used in many applications, including aerospace industries and medical implants. This process is a combination of conventional surface grinding with electrical spark machining with the presence of powder in dielectric fluid. In this paper, a PMEDDSG setup has been designed and fabricated in house. Chen et al. [1] experimented with electrical discharge machining of Ti-6Al-4V. They explained that the removal of material in distilled water occurs due to melting, vaporization and crack propagation, whereas in kerosene, it is due to melting and vaporization. They compared the material removal rate (MRR) and electrode wear ratio in the dielectric fluid and reported the effect of the dielectric fluid on the properties of the EDM-generated surface. Choudhury [2] conducted experiments on the EDDG of high-speed steel. He described how the MRR and grinding forces affected by input machining variables, i.e. current (I), voltage (V), pulse duration (T on) and duty cycle (DC). Koshy et al. [3] performed experiments on the EDDG of high-speed steel and explained that how the grinding force and the rate of material removal are influenced by ampere-current and the wheel revolution per minute. Koshy et al. [4] carried out experimentation on electric discharge diamond grinding of WC-Co and explained that how the grinding force and rate of material removal was influenced by ampere-current and the on-length of the pulse. Kansal et al. [5] explained that MRR and surface roughness are affected by mixing silicon powder in the kerosene of the electric discharge machine. They selected EN-31 as a workpiece material and copper as an electrode material. Habib [6] formulated the models for MRR, the wear ratio of electrode, the gap size and surface roughness by using response surface methodology (RSM). The input machining variables were I, V and SiC % in aluminium. He performed the experiments on electrical discharge machining with an Al/Sic workpiece and copper as an electrode. Hewidy et al. [7] developed models using RSM in the wire EDM of Inconel 601 material. The input machining variables are I, duty factor, wire tension and water pressure whereas the responses are MRR, wear ratio and surface roughness. He reported that the RSM method has the advantage of interpreting the effect of each machining variable on the output response. Lin and Lin [8] applied the combined grey relational analysis-orthogonal array approach for the multi-output optimization of process parameters in electrical discharge machining of SKD11 alloy steel and reported that multi-output optimization problems Powder-mixed electro-discharge diamond surface grinding (PMEDDSG) is an efficient process for shaping hard materials, such as Ti-6Al-4V. Modelling, comparative analysis to study the behaviour of input variables against the responses for both processes, determination of optimum combination of parameters, and studying the effect of input variables on white recast layer thickness and finally on different surface generation during the PMEDDSG processing of Ti-6Al-4V are reported in this paper. The response surface methodology was used to develop the mathematical models of both the responses. Thirty-one experiments were performed on the PMEDDSG setup without powder-mixed dielectric fluid. Another thirty-two experiments were performed on the PMEDDSG setup with aluminium powder-mixed dielectric fluid. The current, pulse-duration, wheel-speed, duty-cycle and powder-concentration (considered only as an input variable with the powder-mixed dielectric fluid) were taken as input parameters. The material-removal-rate (MRR) and average-surface-roughness (R a) were measured as responses in both the process. The weighted principal components (WPC) analysis has been applied to find an optimum setting of PMEDDSG process parameters during multi-output optimisation. A total of 18 experiments were performed according to Taguchi L 18 orthogonal-array on the PMEDDSG setup. The optimum combination suggested by the WPC method was tested to obtain the optimum values of MRR and R a. The scanning electron microscopy images showed that the surface view and white recast layer thickness of machined workpieces are largely influenced by ampere-current, pulse-duration, duty-cycle, wheel-speed and powder-concentration.

Abrasive Wear Behaviour of PTFE Filled E-Glass Fiber Reinforced Polyester Composites

IRJET, 2017

Polymer composites are replacing the conventional materials for use in different applications due... more Polymer composites are replacing the conventional materials for use in different applications due to their excellent corrosion resistant and good mechanical properties. Application of composite, where abrasive wear takes place. The composite were developed by compression moulding method and constituents were E-glass fiber, Polyester resins, Hardener (Methyl Ethyl Ketone Peroxide) were used 10:1 proportion to set the material. To enhance develop the self-lubricating property in material by addition of solid lubricant (PTFE) in various different proportion as filler material. Composite materials were developed with and without addition of filler material in different proportion. Developed composite materials samples were experimentally investigated for self-lubricating properties and analyze the effect of solid lubricant filler addition through Ducom abrasion were test. Experimental results were showed that 10% solid lubricant filled sample least wear out as in comparison of 20% filled and unfilled sample.

Modified Air Cooler With Split Unit For Humidity Control

by Dr Manoj Modi and V Patil

IJEDR, 2018

Energy consumption all over the world is increasing rapidly and there is pressing need to develop... more Energy consumption all over the world is increasing rapidly and there is pressing need to develop ways to conserve energy for future generation. The conventional refrigeration system consumes very large amount of power (about 1.5 KW). Also for cooling, Evaporative coolers are the better option. The cost of Evaporative coolers is low and also it consumes less power than that of AC. The main drawback of Evaporative cooler is that the air supplies by it has very large amount of Humidity. Due to which when an individual sits in the air of evaporative coolers, he fills stickiness on his body which is not comfortable condition. So this project works involves the manufacturing and design of the split unit which will not increase the humidity of air. It will maintain the room at comfort conditions by re-circulating the air in the room through split unit. INTRODUCTION The evaporative cooler was the subject of numerous U.S. patents in the twentieth century; many of these, starting in 1906, suggested or assumed the use of excelsior (wood wool) pads as the elements to bring a large volume of water in contact with moving air to allow evaporation to occur. A typical design, as shown in a 1945 patent, includes a water reservoir (usually with level controlled by a float valve), a pump to circulate water over the excelsior pads and a squirrel-cage fan to draw air through the pads and into the house. This design and this material remain dominant in evaporative coolers in the American Southwest, where they are also used to increase humidity. Energy consumption all over the world is increasing rapidly and there is a pressing need to develop ways to conserve energy for future generations. Researchers are forced to look for renewable sources of energy and ways to use available sources of energy in a more efficient way. Conventional refrigeration based vapour compression air conditioning systems consume a large portion of electrical energy produced mostly by fossil fuel. India's energy demands are expected to be more than double by 2030, and there is a pressing need to develop ways to conserve energy for future generations. This implies that we have to look for renewable sources of energy and use available sources of energy in a more efficient way. Thus energy consumption can be reduced drastically by using energy efficient appliances. In India, the Union ministry of power's research pointed out that about 20-25% of the total electricity utilized in government a building in India is wasted due to unproductive design, resulting in an annual energy related financial loss of about Rs 1.5 billion. Conventional heating ventilation and air conditioning systems consume approximately 50% of the building energy. Conventional refrigeration based vapour compression air conditioning systems consume a large portion of electrical energy produced mostly by fossil fuel. This type of air conditioning is therefore neither eco-friendly nor sustainable.

A COMPARATIVE STUDY OF THIRD-PARTY LOGISTICS PROVIDERS

ELK Asia Pacific Journal – Special Issue, 2019

With competitive pressures placing an increasing dependence on the ability of organizations to de... more With competitive pressures placing an increasing dependence on the ability of organizations to deliver customer-adapted products quickly and on time, logistics has been an area that has been subjected to investigation. While, there is a growing evidence of organizations increasingly seeking to outsource their logistics activities, there have been few comprehensive studies on the outsourcing of logistics in the Middle Eastern region. The purpose of this paper is to examine the usage of third-party logistics (3PL) services. In India the logistics industry is evolving rapidly and it is the interplay of infrastructure, technology and new types of service providers that will define whether the industry is able to help its customers, reduce their logistics costs and provide effective services. Third party logistics (3PL) is drawing attention at government, industrial, academicians and practitioner's levels. This project is an attempt to provide 3PL practices perspective in India. The project focuses on present extent of usage of third-party logistics services based on data collected from the working professionals in 3PL companies. Data analysis is done using SPSS software and descriptive statistics analysis, correlation, regression analysis and reliability test of collected data is performed. This has helped to compare the best third-party logistics provider in Indore and Nasik cities of India. Analysis shows that there are similarities on the use of contract logistics services in Madhya Pradesh and Maharashtra. These include the proportion of firms utilizing contract logistics, the extent of involvement of functional managers, and activities outsourced. Notable differences between the 3PL providers include process, and the benefits to the firms from the use of contract logistics.

INTEGRATED STATISTICAL METHODOLOGY FOR OPTIMIZING THE MACHINING PARAMETERS IN SiC POWDER MIXED – EDDSG PROCESS TO MACHINE Ti6Al4V

Materiali in tehnologije / Materials and technology, 2019

The objective of this research work was targeted to investigate the hybrid-statistical methodolog... more The objective of this research work was targeted to investigate the hybrid-statistical methodology to deduce the economical-machining-condition through multi-output optimization in silicon carbide powder mixed-Electro Discharge Diamond Surface Grinding of Ti6Al4V. In this work, Grey-Fuzzy based principal component analysis along with Taguchi's orthogonal array is utilised for the multi-output optimization of hybrid-machining process parameters for minimal surface roughness, minimal wheel-wear rate, and maximal material removal rate. Eighteen experiments have been conducted according to Taguchi's L18 orthogonal array on in-house-designed and fabricated powder mixed-Electro Discharge Diamond Surface Grinding setup. The single Multi-Output Performance Index is calculated by the aggregation of all multi-responses by using Grey-Fuzzy-Taguchi method based principal component analysis function. The optimum combination of process parameters and the effect of these parameters on the Multi-Output Performance Index are determined by the use of ANOVA analysis and response table. For the validation test, one additional confirmation experiment is conducted on this setup according to the derived optimal condition and the outcomes of the results showed satisfactory matching between the predicted and experimented result. The specific contribution of this research work is to develop and describe the procedure of integrated statistical methodology for multi-output optimization of machining parameters in powder mixed-Electro Discharge Diamond Surface Grinding of Ti6Al4V. This integrated statistical approach hybridizes the concepts of Grey Relational Analysis, Fuzzy, principal component analysis and Taguchi approach to find the optimum combination of machining parameters for economical machining. This optimum combination of process parameters supports engineers to establish an economical and effective process. Keywords: analysis of variance (ANOVA), powder mixed-electro discharge diamond surface grinding (PM-EDDSG), hybrid process, grey relational analysis, fuzzy, principal component analysis (PCA), Taguchi's method (TM), Ti-6Al-4V Pri~ujo~~lanek opisuje raziskavo hibridne statisti~ne metodologije za dolo~itev ekonomi~nih pogojev mehanske obdelave z ve~komponentno analizo optimizacije izhodnih podatkov bru{enja povr{ine Ti6Al4V zlitine s tako imenovanim postopkom PM-EDDSG (diamantno bru{enje povr{ine z elektro erozijo v me{anici prahu). V tem delu je uporabljena osnovna komponentna analiza, ki temelji na tako imenovani sivo-zabrisani logiki (angl.: Grey-Fuzzy) v kombinaciji s Taguchijevo ortogonalno matriko, s katero naj bi napovedali izhodne pogoje za doseganje minimalne povr{inske hrapavosti, minimalne obrabe brusilnega koluta in maksimalno hitrost odstranjevanja materiala pri hibridni mehanski obdelavi s PM-EDDSG postopkom. Avtorji so izvedli osemnajst eksperimentov v skladu s Taguchijevo L18 ortogonalno matriko na doma dizajniranem in izdelanem stroju za PM-EDDSG postopek. Posamezen ve~izhodni indeks u~inkovitosti (MOPI; angl.: Multi-Output Performance Index) so izra~unali z zdru`itvijo vseh ve~kratnih odzivov in z uporabo G-F-T metode (angl.: Grey-Fuzzy-Taguchi method), ki temelji na komponentni funkcijski analizi. Optimalno kombinacijo procesnih parametrov in vpliv teh parametrov na MOPI so dolo~ili z uporabo ANOVA analize in tabele odzivov. Kot validacijski test so izvedli {e en dodatni eksperiment na pri~ujo~i napravi pri dobljenih optimalnih pogojih. Rezultati preizkusa so pokazali zadovoljivo ujemanje med napovedanimi in z eksperimentom dobljenimi rezultati. Specifi~ni prispevek tega raziskovalnega dela je razvoj in opis postopka integrirane statisti~ne metodologije za ve~izhodno optimizacijo parametrov mehanske obdelave povr{ine Ti6Al4V zlitine s PM-EDDSG postopkom. Ta integrirani statisti~ni pristop zdru`uje koncepte sivo-zabrisane relacijske analize (angl.: Grey-Fuzzy Relational Analysis), osnovne komponentne analize in Taguchijeve metode za dolo~itev optimalne kombinacije procesnih parametrov ekonomi~ne mehanske obdelave. Ta optimalna kombinacija procesnih parametrov omogo~a procesnim in`enirjem uvajanje novega ekonomi~nega in u~inkovitega procesa. Klju~ne besede: analiza variance (ANOVA), diamantno bru{enje povr{ine z elektroerozijo v me{anici prahu (PM-EDDSG), hibridni proces, siva relacijska analiza, zabrisanost, osnovna komponentna analiza (PCA), Taguchijeva metoda (TM), Ti-6Al-4V

Study And Analysis Of Wire Electrical Discharge Machining And Its Process Parameters

by Dr Manoj Modi and Dr G Agarwal

IJSTR, 2019

Wire electrical release machining (Wire-EDM) is one of the generally acknowledged advanced machin... more Wire electrical release machining (Wire-EDM) is one of the generally acknowledged advanced machining procedures used to machine the parts with unpredictable shapes and profiles. The wire is gradually sustained through the material and the generated electrical releases among the wire and work-piece are responsible to cut the work piece. Wire is generally made of copper, molybdenum or tungsten, which changes electrical power to heat power. This thermal energy is utilized for cutting the materials. W-EDM appears a decent choice for machining the convoluted shapes for the solidify materials. The selection of machining parameters is important for powerful use of these parameters and it is likewise engaged with numerous responses. This paper manages the theoretical investigation of different procedure parameters in W-EDM and the responses. Streamlining of process parameters assumes a significant job to accomplish a best quality item at a sensible cost.

Parametric Optimization in Drilling of Al-SiC Composite Using Taguchi Method

IJSTR, 2019

Optimization is one of the best techniques used in manufacturing industries for improving quality... more Optimization is one of the best techniques used in manufacturing industries for improving quality of product with lower cost. This report describes the effective approach for the single response optimization of drilling parameters based on the Taguchi's method. This research work also reported about the influence of input process parameters i.e. spindle speed and tool diameter on the material removal rate (MRR). Taguchi L9 orthogonal array was used for planning and conduction of experiments. Analysis of Variance (ANOVA) was carried out to find which drilling parameters significantly affect the output response and it also determined the percentage contribution of individual parameter over the response.

Effect of aluminium and chromium powder mixed dielectric fluid on electrical discharge machining effectiveness

APEM, 2019

This article studied the impacts of using different powders on the productivity of electro discha... more This article studied the impacts of using different powders on the productivity of electro discharge machining (EDM) of Nimonic 8OA alloy. The powders used for experiments are chromium (Cr) and aluminium (Al), though these powders are in contrasts in their thermo-physical characteristics. With the mixing of these powders in dielectric fluid, effect on surface roughness (SR), material removal rate (MRR), and mechanism of the machining process have been studied in this research work. On going through the results of experiments , it was observed that even volumetric proportion of powders, size of molecules, its density, electric resistance, and heat conductivity of additives were vital parameters that altogether influenced the productivity of powder mixed-electro discharge machining (PMEDM) process. With addition of proper ratio of powders in dielectric fluid, it enhanced the material removal rate, and consequently, reduced the surface roughness. Under a similar molecule volumetric proportion tests, the minutes suspended molecule size of powder prompted the largest material removal rate and consequently, the surface roughness increased. Conclusion is that adding chromium powder improves to the highest material removal rate, but poor surface finish while adding aluminium powder has the reverse effects.

Effect of Preheated Pure Oxygen on IC Engine Performance using Heat Pipe Exhaust Heat Recovery Method

International Journal of Innovative Technology and Exploring Engineering (IJITEE), 2019

Nowadays, the requirements and dependency of people on vehicles are increasing day by day which l... more Nowadays, the requirements and dependency of people on vehicles are increasing day by day which lead to high emission of flue gases and it results in the severe environment pollution. Many researchers have done research to improve the efficiency of IC engine. The main reason for less efficiency is the incomplete combustion of fuel in the IC engine. To improve the efficiency, we carried out the experiments with two stroke petrol engine by supplying preheated pure oxygen instead of air. The oxygen is preheated by the exhaust heat recovery system using heat pipe. In this research work, engine performance is analyzed in two ways primarily by using the pure oxygen and secondly by using the pre-heated pure oxygen through heat pipe. The output response in this work is brake thermal efficiency without heat pipe (without inlet-air-preheating) and with heat pipe (with inlet air preheating). The output response is calculated with the use of numerical formula. Exhaust gases energy is used to preheat the inlet pure oxygen supplied to petrol engine with the help of heat pipe. A heat pipe without bend is used here in which working fluid is water. Experimental results show that there is an increase in brake thermal efficiency with use of heat pipe.

Fabrication Of Solar Operated Thermoelectric Refrigerartion System

IJSTR, 2019

In this research article, prototype of thermoelectric refrigeration system working has been desig... more In this research article, prototype of thermoelectric refrigeration system working has been designed and fabricated. This fabricated system is working on DC voltage, which is generated by the photo voltaic cells. The developed experimental prototype is having a refrigeration space of 1 liter capacity, which is refrigerated by using four numbers of Peltier module (Supercool : PE-063-10-13, Qmax=19W) and a heat sink fan assembly used (Model No: TDEX6015/TH/12/G, Rth=1.157 o C/W) to increase the heat dissipation rate from hot side of Peltier module. In the recent years, we have many problem such as energy crises and environment degradation due to the increasing emission of CO2 and ozone layer depletion has become the primarily concern in both the developed and developing countries. Our project utilizes the solar energy for its operation. Solar refrigeration using thermoelectric module is going to be one of the most cost effective, clean and environment friendly system. This project does not need any kind of refrigerant and mechanical device like compressor, prime mover, etc for its operation. The main purpose of this project is to provide refrigeration to the remote areas where power supply is not possible.

3 rd Party Logistics Providers: Comparative Study And Analysis By Using SPSS In Indian Market

IJSTR, 2019

With competitive pressures placing an increasing dependence on the ability of organizations to de... more With competitive pressures placing an increasing dependence on the ability of organizations to deliver customer adapted products quickly and on time, logistics has been an area that has been subjected to investigation. While, there is a growing evidence of organizations increasingly seeking to outsource their logistics activities, there have been few comprehensive studies on the outsourcing of logistics in the Middle Eastern region. The purpose of this paper is to examine the usage of third party logistics (3PL) services. In India the logistics industry is evolving rapidly and it is the interplay of infrastructure, technology and new types of service providers that will define whether the industry is able to help its customers, reduce their logistics costs and provide effective services. Third party logistics (3PL) is drawing attention at government, industrial, academicians and practitioner's levels. This project is an attempt to provide 3PL practices perspective in India. The project focuses on present extent of usage of third party logistics services based on data collected from the working professionals in 3PL companies. Data analysis is done using SPSS software and descriptive statistics analysis, correlation, regression analysis and reliability test of collected data is performed. This has helped to compare the best third party logistics provider in Indore and Nasik cities of India. Analysis shows that there are similarities on the use of contract logistics services in Madhya Pradesh and Maharashtra. These include the proportion of firms utilising contract logistics, the extent of involvement of functional managers, and activities outsourced. Notable differences between the 3PL providers include process, and the benefits to the firms from the use of contract logistics.

Minimization Of Traffic Congestion By Using Queuing Theory

IJSTR, 2019

This paper sets up the M/M/1 queuing model, analyses the traffic intensity of Palasia intersectio... more

Modeling and analysis of turning process on lathe machine by Taguchi and ANOVA approach

INTERNATIONAL JOURNAL OF SCIENTIFIC & TECHNOLOGY RESEARCH, 2019

In the today's competitive era, it is very important to an edge over the others to survive and fl... more In the today's competitive era, it is very important to an edge over the others to survive and flourish. One of the easiest yet most complicated areas to expertise is ‗fast delivery' and to obtain that the cycle time has to be reduced. Keeping this in mind certain investigations are carried out to increase the material removal rate. This research work explains the effects of certain lathe parameters namely Speed, Feed and Depth of Cut on the output parameter Material Removal Rate. A mild steel test piece is taken and different experiments are conducted on it by a nine foot conventional lathe machine by changing the input parameters using Taguchi methodology. Taguchi method is used to formulate the experimental layout. A Taguchi L9 design of experiment (DOE) and the analysis of variance (ANOVA) is applied to analyze the effect of each parameter on the response. Mathematical formula is also developed among the Speed, Feed and Depth of Cut and MRR. It will be found that these parameters have a significant influence on machining characteristic metal removal rate.

GREY-WPCA BASED PARAMETRIC-OPTIMIZATION AND MODELLING OF CHROMIUM POWDER MIXED SURFACE- ELECTRO DISCHARGE DIAMOND GRINDING OF INCONEL 600 USING RSM

Strojnícky časopis – Journal of MECHANICAL ENGINEERING, 2019

The PMS-EDDG is an effective hybrid process to beat the problems identified in machining of Incon... more The PMS-EDDG is an effective hybrid process to beat the problems identified in machining of Inconel 600 through the conventional machining process. This hybrid-machining-process is a combination of S-DG and Powder Mixed-EDM process. Modeling, comparative investigation, determination of optimal setting of process factors, and various surface developments in S-EDDG of Inconel 600 with chromium and absence of chromium-powder blended dielectric fluid (DF) have been narrated in this research work. One set of 31 experiments with chromium-powder and another set of 31 experiments without chromium-powder mixed DF was conducted on this setup in accordance with the CC -R-D plan of experimentation. The developed models through RSM support to investigate the behavior of input process-factors over the responses. The input factors in this research work are ampere-current (I), pulse-on-time (Ton), wheel speed (WS), and duty cycle (DC). The MRR and Ra are the output-responses in this machining process. The optimum setting of process-parameters is computed through the integrated Grey-Taguchi based WPCA-approach. The confirmation experiment is conducted on this setup at the optimum-condition and its results display the agreeable matching among the actual and predicted values. The WMPI is improved by 0.414. The SEM investigation has been conducted at the optimum-condition on the produced machined-surfaces and on the produced white recast-layer thickness.

Impact of Viscosity Variation, and Flow Rate on Coefficient of Discharge in Venturimeter Utilizing Taguchi Methodology

International Journal of engineering and advanced technology, 2020

Most of the industries are concerned with flow measurement and accurate measurement of fluid is i... more Most of the industries are concerned with flow measurement and accurate measurement of fluid is important to obtain specific proportion as per process requirement. Generally Venturimeter (VM) is utilized in enterprises due to notable highlights offered by it. VM works on the principle of pressure difference i.e. Bernoulli's principle. By varying cross sectional area of flow, it creates pressure difference along its length which is used to calculate theoretical discharge. Head loss in VM is less as compared to other flow measuring apparatus. Because of its specific geometry eddies formation is avoided causing less head loss. The coefficient of discharge (C d) is an important parameter always referred in case of flow measuring devices. For VM it varies from 0.95 to 0.99. Tests have been performed in accordance to Taguchi L9 O-A on cast iron pipe to examine the impact of variations of viscosity, and rates of flow on the Cd .