The International Journal of Advanced Manufacturing Technology, 2012
ABSTRACT The basic attributes of any industrial machine are productivity rate, quality of product... more ABSTRACT The basic attributes of any industrial machine are productivity rate, quality of products, as well as the cost and flexibility of manufacturing systems. Attributes of productivity are related to the theory of reliability, let alone the theory of efficiency of machines. The main attribute of reliability with any industrial machine is availability, which is the integrated index of the machine's reliability. The availability of industrial machines with complex designs should be a constituent of equations on productivity rate. This paper develops analytical equations of productivity rate with the availability of automated lines as a function of structural, technical and technological parameters of industrial machines. The equations allow for the output of automated lines to be modelled and their structures to be defined according to the level of productivity and availability.
ARPN Journal of engineering and applied sciences, 2010
Electric, hybrid-electric and fuel-cell vehicles have received positive response from the market ... more Electric, hybrid-electric and fuel-cell vehicles have received positive response from the market due to their environmental-friendly factors. However, an electric vehicle powered by a solar energy has not yet being produced commercially because of power reliability and also high production cost. At the moment, solar vehicles are being developed for individual use, demonstration and also for research activities. For example a solar vehicle is being developed for the World Solar Challenge (WSC) 2009. Most of the ...
A solar car which uses solar energy to charge its batteries has been designed and built at the Ce... more A solar car which uses solar energy to charge its batteries has been designed and built at the Centre for Product Design and Manufacture (CPDM), University Of Malaya. The vehicle main body structure is made of aluminium. Most of the mechanical components are common parts available off-the-shelf. The electrical components such as the solar panels and batteries are available in the local market. However, the DC motor, its controller and the maximum power point trackers (MPPT) are manufactured in other countries. The process of combining these mechanical and electrical components is not an easy task especially at the design stage because of the individual part specific characteristic and function. Since the development cost is one of the major constraints for this project, the sustainable design concept was implemented. Suitable parts which can be easily recycled and re-used, with desired functions that contribute to vehicle optimum performance are properly selected. This paper describ...
2010 2nd International Conference on Computer Engineering and Applications, ICCEA 2010, 2010
The Center for Product Design and Manufacturing (CPDM) of University Malaya going to take part in... more The Center for Product Design and Manufacturing (CPDM) of University Malaya going to take part in the World Solar Challenge (WSC) 2009. It is a biannual solar powered car race over 3021 km from Darwin to Adelaide. The aim of this project is to build a system for monitoring performance of the solar vehicle during testing and race, a data acquisition and telemetry (DaqT) system is needed. In this project, a DaqT system will be developed using National Instruments' (NI) Lab VIEW, compactRIO (cRIO) and MaxStream Xstream Radio Frequency modules. The DaqT is able to measure signals from sensors which are thermocouples, current transducers, battery storage and tachometer. Experiment is conducted to investigate the capability of the DaqT system to process signals from essential sensors, transmit data with wireless communication and data logging. The results of this project from the experiment, the DaqT manage to transmit data in open space up to 700 meters and the percentages of the error is below 5%.
Solar car can be categorized as a 'green vehicle' which is powered by renewable energy with zero ... more Solar car can be categorized as a 'green vehicle' which is powered by renewable energy with zero carbon emission. Various numbers of solar race events organized around the world has propelled the continuous development of solar cars by different research teams. These events have become the platform for universities and private companies to showcase their latest technologies and findings in utilising solar energy to drive their vehicles. Solar car development cost has been observed to increase significantly over the years with most teams having the sole aim of winning the race at all costs, instead of producing a practical solar car suitable for everyday use. Bucking this trend, Centre for Product Design and Manufacturing has recently developed a solar car using off-the-shelf components in order to reduce the development cost. It presented a big challenge to the team in combining those components while aspiring to achieve optimum operating conditions. This paper describes the design concept of this 'alternative' solar car, the mechanical, electrical and telemetry systems and some performance characteristics of the car. During the recently concluded World Solar Challenge 2009, even though the developed solar car has managed to cover only 20 percent of the total distance required but managing to received positive responses due to its practicality, novel concept and comfort factors.
ARPN Journal of engineering and applied sciences, 2010
Electric, hybrid-electric and fuel-cell vehicles have received positive response from the market ... more Electric, hybrid-electric and fuel-cell vehicles have received positive response from the market due to their environmental-friendly factors. However, an electric vehicle powered by a solar energy has not yet being produced commercially because of power reliability and also high production cost. At the moment, solar vehicles are being developed for individual use, demonstration and also for research activities. For example a solar vehicle is being developed for the World Solar Challenge (WSC) 2009.
The International Journal of Advanced Manufacturing Technology, 2013
The basic attributes of any industrial machine are productivity rate, quality of products, as wel... more The basic attributes of any industrial machine are productivity rate, quality of products, as well as the cost and flexibility of manufacturing systems. Attributes of productivity are related to the theory of reliability, let alone the theory of efficiency of machines. The main attribute of reliability with any industrial machine is availability, which is the integrated index of the machine's reliability. The availability of industrial machines with complex designs should be a constituent of equations on productivity rate. This paper develops analytical equations of productivity rate with the availability of automated lines as a function of structural, technical and technological parameters of industrial machines. The equations allow for the output of automated lines to be modelled and their structures to be defined according to the level of productivity and availability.
Vehicle's low drag force is critical to achieve higher speed and for efficient energy usage. Most... more Vehicle's low drag force is critical to achieve higher speed and for efficient energy usage. Most solar vehicles that participated in the World Solar Challenge event adopted the 'cockroach' shape which has been considered as the best shape to achieve optimum speed and aerodynamics characteristics. However, the team from University of Malaya decided to design their entry vehicle based on the profile of a box fish, said to possess an even lower drag coefficient value. This paper describes the aerodynamics characteristics numerical study of the solar vehicle using a computational fluid dynamics (CFD) code called FLUENT. The numerical computation is based on the frontal area of the vehicle and the obtained results have shown reasonable values of drag and lift coefficients when compared to ordinary road vehicles.
A solar car which uses solar energy to charge its batteries has been designed and built at the Ce... more A solar car which uses solar energy to charge its batteries has been designed and built at the Centre for Product Design and Manufacture (CPDM), University Of Malaya. The vehicle main body structure is made of aluminium. Most of the mechanical components are common parts available off-the-shelf. The electrical components such as the solar panels and batteries are available in the local market. However, the DC motor, its controller and the maximum power point trackers (MPPT) are manufactured in other countries. The process of combining these mechanical and electrical components is not an easy task especially at the design stage because of the individual part specific characteristic and function. Since the development cost is one of the major constraints for this project, the sustainable design concept was implemented. Suitable parts which can be easily recycled and re-used, with desired functions that contribute to vehicle optimum performance are properly selected. This paper describes the integration of the off-the-shelf mechanical and electrical components for the solar vehicle. The conceptual design and the performance of the prototype are also presented.
The International Journal of Advanced Manufacturing Technology, 2012
ABSTRACT The basic attributes of any industrial machine are productivity rate, quality of product... more ABSTRACT The basic attributes of any industrial machine are productivity rate, quality of products, as well as the cost and flexibility of manufacturing systems. Attributes of productivity are related to the theory of reliability, let alone the theory of efficiency of machines. The main attribute of reliability with any industrial machine is availability, which is the integrated index of the machine's reliability. The availability of industrial machines with complex designs should be a constituent of equations on productivity rate. This paper develops analytical equations of productivity rate with the availability of automated lines as a function of structural, technical and technological parameters of industrial machines. The equations allow for the output of automated lines to be modelled and their structures to be defined according to the level of productivity and availability.
ARPN Journal of engineering and applied sciences, 2010
Electric, hybrid-electric and fuel-cell vehicles have received positive response from the market ... more Electric, hybrid-electric and fuel-cell vehicles have received positive response from the market due to their environmental-friendly factors. However, an electric vehicle powered by a solar energy has not yet being produced commercially because of power reliability and also high production cost. At the moment, solar vehicles are being developed for individual use, demonstration and also for research activities. For example a solar vehicle is being developed for the World Solar Challenge (WSC) 2009. Most of the ...
A solar car which uses solar energy to charge its batteries has been designed and built at the Ce... more A solar car which uses solar energy to charge its batteries has been designed and built at the Centre for Product Design and Manufacture (CPDM), University Of Malaya. The vehicle main body structure is made of aluminium. Most of the mechanical components are common parts available off-the-shelf. The electrical components such as the solar panels and batteries are available in the local market. However, the DC motor, its controller and the maximum power point trackers (MPPT) are manufactured in other countries. The process of combining these mechanical and electrical components is not an easy task especially at the design stage because of the individual part specific characteristic and function. Since the development cost is one of the major constraints for this project, the sustainable design concept was implemented. Suitable parts which can be easily recycled and re-used, with desired functions that contribute to vehicle optimum performance are properly selected. This paper describ...
2010 2nd International Conference on Computer Engineering and Applications, ICCEA 2010, 2010
The Center for Product Design and Manufacturing (CPDM) of University Malaya going to take part in... more The Center for Product Design and Manufacturing (CPDM) of University Malaya going to take part in the World Solar Challenge (WSC) 2009. It is a biannual solar powered car race over 3021 km from Darwin to Adelaide. The aim of this project is to build a system for monitoring performance of the solar vehicle during testing and race, a data acquisition and telemetry (DaqT) system is needed. In this project, a DaqT system will be developed using National Instruments' (NI) Lab VIEW, compactRIO (cRIO) and MaxStream Xstream Radio Frequency modules. The DaqT is able to measure signals from sensors which are thermocouples, current transducers, battery storage and tachometer. Experiment is conducted to investigate the capability of the DaqT system to process signals from essential sensors, transmit data with wireless communication and data logging. The results of this project from the experiment, the DaqT manage to transmit data in open space up to 700 meters and the percentages of the error is below 5%.
Solar car can be categorized as a 'green vehicle' which is powered by renewable energy with zero ... more Solar car can be categorized as a 'green vehicle' which is powered by renewable energy with zero carbon emission. Various numbers of solar race events organized around the world has propelled the continuous development of solar cars by different research teams. These events have become the platform for universities and private companies to showcase their latest technologies and findings in utilising solar energy to drive their vehicles. Solar car development cost has been observed to increase significantly over the years with most teams having the sole aim of winning the race at all costs, instead of producing a practical solar car suitable for everyday use. Bucking this trend, Centre for Product Design and Manufacturing has recently developed a solar car using off-the-shelf components in order to reduce the development cost. It presented a big challenge to the team in combining those components while aspiring to achieve optimum operating conditions. This paper describes the design concept of this 'alternative' solar car, the mechanical, electrical and telemetry systems and some performance characteristics of the car. During the recently concluded World Solar Challenge 2009, even though the developed solar car has managed to cover only 20 percent of the total distance required but managing to received positive responses due to its practicality, novel concept and comfort factors.
ARPN Journal of engineering and applied sciences, 2010
Electric, hybrid-electric and fuel-cell vehicles have received positive response from the market ... more Electric, hybrid-electric and fuel-cell vehicles have received positive response from the market due to their environmental-friendly factors. However, an electric vehicle powered by a solar energy has not yet being produced commercially because of power reliability and also high production cost. At the moment, solar vehicles are being developed for individual use, demonstration and also for research activities. For example a solar vehicle is being developed for the World Solar Challenge (WSC) 2009.
The International Journal of Advanced Manufacturing Technology, 2013
The basic attributes of any industrial machine are productivity rate, quality of products, as wel... more The basic attributes of any industrial machine are productivity rate, quality of products, as well as the cost and flexibility of manufacturing systems. Attributes of productivity are related to the theory of reliability, let alone the theory of efficiency of machines. The main attribute of reliability with any industrial machine is availability, which is the integrated index of the machine's reliability. The availability of industrial machines with complex designs should be a constituent of equations on productivity rate. This paper develops analytical equations of productivity rate with the availability of automated lines as a function of structural, technical and technological parameters of industrial machines. The equations allow for the output of automated lines to be modelled and their structures to be defined according to the level of productivity and availability.
Vehicle's low drag force is critical to achieve higher speed and for efficient energy usage. Most... more Vehicle's low drag force is critical to achieve higher speed and for efficient energy usage. Most solar vehicles that participated in the World Solar Challenge event adopted the 'cockroach' shape which has been considered as the best shape to achieve optimum speed and aerodynamics characteristics. However, the team from University of Malaya decided to design their entry vehicle based on the profile of a box fish, said to possess an even lower drag coefficient value. This paper describes the aerodynamics characteristics numerical study of the solar vehicle using a computational fluid dynamics (CFD) code called FLUENT. The numerical computation is based on the frontal area of the vehicle and the obtained results have shown reasonable values of drag and lift coefficients when compared to ordinary road vehicles.
A solar car which uses solar energy to charge its batteries has been designed and built at the Ce... more A solar car which uses solar energy to charge its batteries has been designed and built at the Centre for Product Design and Manufacture (CPDM), University Of Malaya. The vehicle main body structure is made of aluminium. Most of the mechanical components are common parts available off-the-shelf. The electrical components such as the solar panels and batteries are available in the local market. However, the DC motor, its controller and the maximum power point trackers (MPPT) are manufactured in other countries. The process of combining these mechanical and electrical components is not an easy task especially at the design stage because of the individual part specific characteristic and function. Since the development cost is one of the major constraints for this project, the sustainable design concept was implemented. Suitable parts which can be easily recycled and re-used, with desired functions that contribute to vehicle optimum performance are properly selected. This paper describes the integration of the off-the-shelf mechanical and electrical components for the solar vehicle. The conceptual design and the performance of the prototype are also presented.
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Papers by JAMALI MD SAH