Papers by Mohammad Javad Monem
Investigating the Effect of Adding an Edge to a Rectangular Sluice Gate on the Discharge Coefficient
Management and performance improvement of irrigation canals in water‐scarce conditions considering hydraulic drawbacks: A case study for the Eastern Aghili secondary canal, Iran
Irrigation and Drainage
Development of Mathematical Model for Bival Downstream Control System in Irrigation Canals
Journal of Hydraulics, Nov 22, 2005
Use of hydrodynamic model for assessing operation losses and improving operation efficiency in irrigation canals
Quantifying Operation Performance of Irrigation Canals in Response to Demand Variation Using Hydrodynamic Model and Analysis of Unsteady Flow
Developing Computer Model for Performance Assessment of Pressurized Irrigation Conveyance and Distribution Systems (Papis) Utilizing Classical Approach
Construction and Evaluation of Pid Automatic Control System for Irrigation Canals at Laboratory Scale Construction et Evaluation Du Systeme De Controle Automatique Pid Des Canaux D'Irrigation Au Niveau De Laboratoire
Increasing limitation of water resources requires optimum use of available water and performance ... more Increasing limitation of water resources requires optimum use of available water and performance improvement of systems. Providing higher flexibility in water delivery and reducing water losses are important factors to achieve them. Studies indicate that high performance improvement could be achieved by suitable control systems. Structures automation is one of the main options for improving operations in irrigation canals. PID control systems are typical samples of automatizing canal operation control. For local development of automatic control system technology and its application, the facilities must first be constructed and tested in laboratory scale, then, if the performance was acceptable, it could be introduced to the irrigation canals. In this research, the PID control systems are constructed and investigated. Initial gate opening and target depth constitute the input of the program and the output is gate opening. The PID control system compares the measured water depth and t...
Introduction of a New Mathematical Model for the Evaluation and Optimization of Irrigation Canal Performance
JWSS - Isfahan University of Technology, 2007
Energy Conversion and Management, 2019
In this research, an energy harvesting system was developed for power generation using a combinat... more In this research, an energy harvesting system was developed for power generation using a combination of an Archimedes Screw Turbine (AST) and a solar Organic Rankine Cycle (ORC) system. An AST was numerically used and optimized for producing mechanical power as an energy harvesting technique. Different structural parameters including the screw inclination angle, number of flights and the screw length were considered. A parabolic trough concentrator was numerically modeled as a heat source of the ORC system. Two different types of absorber were considered using a smooth and corrugated tube. Different ORC working fluids were investigated in the solar ORC system including R134a, R245ca, R245fa, R152a, R113, R11, and R114b. The results of numerical modeling were validated with experimental results and good agreement was found. The results revealed that R113 at the saturated condition at turbine inlet gave the highest ORC net power, ORC efficiency, and total efficiency compared to the other investigated working fluids. The solar PTC system with the corrugated tube showed the higher ORC net power, and overall efficiency compared to the smooth tube as the PTC receiver. The highest efficiency resulted in the screw length of 1.5 m was 58.24% with inclination angle of 25°and flight number of 1. Finally, the optimized characteristics of power generation system including a solar ORC system and a screw turbine (hybrid system) were presented to harvest energy. Application of the presented hybrid system is an acceptable way for increasing and optimizing the ORC power generation.
Investigation of Wetland Boundary Delineation Methods and Their Basics
Wetland is one the most beautiful and important items in environmental ecosystem. It is defined a... more Wetland is one the most beautiful and important items in environmental ecosystem. It is defined as interface of water and dry land which are different from the both media. Due to evolvement of so many different parameters, considering national experiences, laws and regulations, a suitable approach for wetland delineation is suggested. Boundary detection and delineation of wetlands is a practical and technique challenges in environmental and water engineering field. Nowadays, facing drought and critical condition of water deficit task, conservation of wetlands as significant resources of interior water is a very important. In this paper based on international experiences, some methodologies in wetland delineation are presented, described, and compared.
Principles of Wetland's Identification, Modelling and Delineation
More on Inland Wetland Boundary Delineation Methods
Wetland is one the most beautiful and important items in environmental ecosystem. It is defined a... more Wetland is one the most beautiful and important items in environmental ecosystem. It is defined as interface of water and dry land which are different from the both media. Due to evolvement of so many different parameters, considering national experiences, laws and regulations, a suitable approach for wetland delineation is suggested. Boundary detection and delineation of inland wetlands is a practical and technique challenges in environmental and water engineering field. Nowadays, facing drought and critical condition of water deficit task, conservation of wetlands as significant resources of interior water is a very important. In this paper based on international experiences, some methodologies in wetland delineation are presented, described, and compared.
Using Local PI Control Method to Improve the Operation of Main Irrigation Canal with In-Line Storage
Successful operation of a main irrigation canal system is achieved under condition that differenc... more Successful operation of a main irrigation canal system is achieved under condition that differences between supply and demand of all users are eradicated. In the present study, the effect of In-Line Reservoirs on operation and management of a main irrigation canal is assessed. A proportional-Integral (PI) local upstream controller is designed for Dez main Irrigation canal. Total length of this main canal is 45 km (13 pools) with the design discharge capacity at the beginning of the canal is 157 cms. Three pools, one in the upstream and two in the middle of the canal are considered as the in-line reservoirs. Water level deviation from set-point in each pool is controlled by a local PI controller and also is coupled to its upstream in-line reservoir. The first in-line reservoir is coupled to the head gate and control the released flow from the head gate. The controller was tested for an extreme and sudden increasing - decreasing irrigation schedule on two different operation condition...
Irrigation and Drainage, 2013
In this study an in-line storage strategy is applied to improve the existing operational performa... more In this study an in-line storage strategy is applied to improve the existing operational performance of an upstream-controlled 13-pool irrigation canal. Three pools in the upstream, middle and downstream sections of the main canal are considered as in-line reservoirs. Decentralized proportional-integral (PI) controllers are designed to regulate their upstream water levels based on a mixed control method. Each regulator is coupled to its upstream in-line reservoir. The objectives of the controlled system are keeping the upstream water level of each regulator at the target levels; reducing delay times of flow travelling in the canal and compensating for mismatches between upstream supply and downstream demands. Existing and proposed operational methods are compared, using the hydrodynamic modelling package Sobek, considering a severe and sudden increasing-decreasing flow condition. In this case study, the water level profiles and controller performance indicators imply that in-line storage in the main canal decreases water level deviations in most of the pools in the range of 24-57 % in comparison with the current operation. Moreover, using in-line reservoirs decreases the delay times especially in the downstream part of the canal.
Application and Evaluation of Water, Food and Energy (NEXUS) in Irrigation Networks Management: Case Study of Zayandehrud Irrigation Network
Iranian Journal of Irrigation & Drainage, Apr 20, 2020
Development and Evaluation of an Upstream Fuzzy Control System Model for Irrigation Canals
The development of water delivery schedules in irrigation canals is mostly performed on the basis... more The development of water delivery schedules in irrigation canals is mostly performed on the basis of hueristic methods and personal judgment. However, the great impact of water delivery schedules on the performance of systems has recently called for analytical methods to be considered. Analythical methods used so far are mostly single objective. Only one study has considered a multi-objective approach using simulated annealing optimization techniques. In this research the genetic algorithm is used and a model has been developed accordingly. In this model an optimal water delivery schedule for lateral intakes is developed such that different objectives of canal capacity and/or delivery periods are optimized. In this model the number of lateral intakes, their delivery flow limits, and coverage areas are given and a optimal water delivery schedule for the distributary canal is determined. The model is applied on one of the secondary canals of Fomanat Irrigation Network in west Gilan Pr...
Optimal Operation of Irrigation Canals with Conjunctive Use of Surface and Ground Water
System Dynamics Model Development for Irrigation Network Rehabilitation, Considering Farmers Participation and Personnel Promotion
Analysis of Icss Hydrodynamic Model in a Laboratory Canal for Unsteady Flow Simulation in the Canal Control Systems
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Papers by Mohammad Javad Monem