Construction and Simulation of a Water Cooling System Controller for PV Modules: Some Initial Results

2019 ◽  
Vol 4 (1) ◽  
Keyword(s):  
Cooling System ◽  
Water Cooling ◽  
Pv Modules ◽  
Water Cooling System ◽  
System Controller ◽  
Initial Results

Performance Evaluation of Combined Photovoltaic Thermal Water Cooling System for Hot Climate Regions

2019 ◽  
Vol 141 (4) ◽  
Author(s):  
M. Salem Ahmed ◽  
A. S. A. Mohamed ◽  
Hussein M. Maghrabie
Keyword(s):  
Surface Temperature ◽  
Cooling System ◽  
Back Surface ◽  
Back Side ◽  
Water Cooling ◽  
Electrical Efficiency ◽  
Pv Module ◽  
Hot Climate ◽  
Pv Modules ◽  
Water Cooling System

Solar electric power generation utilizing photovoltaic (PV) modules is associated with low electrical efficiency that substantially decreases as its surface temperature exceeds an appropriate limit, particularly in hot climate regions. Consequently, it is required to keep PV modules relatively under a condition of low temperature using a cooling system as possible. The present experimental study evaluates the performance of the combined photovoltaic thermal (PV/T) module employing a water cooling system attached to the back surface during June for the city of Sohag in Egypt. The experimental results show that utilizing a water cooling system decreases the average surface temperature of the PV module from 44.8 °C to 30.3 °C on the back side and from 46.6 °C to 36.9 °C on the front side. The maximum value of the thermal heat gain of the PV/T module that is maintained at noon equals 230 W, and the corresponding value of the electrical power output is 34.4 W. Furthermore, the electrical efficiency of the PV/T module is 8% higher than that of the PV module without a water cooling system. Finally, the maximum and average values of the overall efficiency of PV/T module are 76.4% and 68.9%, respectively.

Multi-Objective Optimization Analysis of Motor Cooling System in Articulated Dump Truck

2011 ◽  
Vol 383-390 ◽  
pp. 4715-4720
Author(s):  
Yan Zhang ◽  
Yan Hua Shen ◽  
Wen Ming Zhang
Keyword(s):  
Field Distribution ◽  
Cooling System ◽  
Dump Truck ◽  
Water Cooling ◽  
Multi Objective Optimization ◽  
Multi Objective ◽  
Pareto Optimal Set ◽  
Temperature And Pressure ◽  
Water Cooling System ◽  
Optimal Set

In order to ensure the reliable and safe operation of the electric driving motor of the articulated dump truck, water cooling system is installed for each motor. For the best performance of the water cooling system, not only the heat transfer should be enhanced to maintain the motor in relatively low temperature, but also the pressure drop in the water cooling system should be reduced to save energy by reducing the power consumption of the pump. In this paper, the numerical simulation of the cooling progress is completed and the temperature and pressure field distribution are obtained. The multi-objective optimization model is established which involves the cooling system structure, temperature field distribution and pressure field distribution. To improve the computational efficiency, the surrogate model of the simulation about the cooling process is established based on the Response Surface Methodology (RSM). After the multi-objective optimization, the Pareto optimal set is obtained. The proper design point, which could make the average temperature and pressure drop of the cooling system relative desirable, is chosen from the Pareto optimal set.

Design and Development of Water Cooling System for Copper Mold

2021 ◽  
pp. 911-919
Author(s):  
Shashikant S. Jadhav ◽  
Avinash K. Parkhe ◽  
Subhash V. Jadhav ◽  
Samadhan J. Shinde
Keyword(s):  
Cooling System ◽  
Water Cooling ◽  
Copper Mold ◽  
Design And Development ◽  
Water Cooling System

scholarly journals Aurantimonas frigidaquae sp. nov., isolated from a water-cooling system

2008 ◽  
Vol 58 (5) ◽  
pp. 1142-1146 ◽  
Author(s):  
M. S. Kim ◽  
K. T. Q. Hoa ◽  
K. S. Baik ◽  
S. C. Park ◽  
C. N. Seong
Keyword(s):  
Cooling System ◽  
Water Cooling ◽  
Water Cooling System

Energy Efficient Control of Parallel Variable-Frequency Pumps in Magnetic Water-Cooling System

2019 ◽  
Vol 142 (2) ◽  
Author(s):  
Wenjun Qiu ◽  
Zhengrong Ouyang
Keyword(s):  
Optimal Control ◽  
Control Method ◽  
Cooling System ◽  
Variable Frequency ◽  
Power Model ◽  
Water Cooling ◽  
Centrifugal Pumps ◽  
Pump System ◽  
Shaft Power ◽  
Water Cooling System

Abstract This paper presents an optimal control method for the prediction of parallel centrifugal variable frequency pump performance in any conditions to maximize the total efficiency of the pump system, thereby minimizing energy consumption. First, a theoretical model of parallel water pumping set was established, after which the shaft power model was setup specifically for the off-rating conditions. By combining the typical polynomial fitting method of the efficiency and the shaft power model we brought up, a new optimized control method was proposed. Using this method, the complex optimization task was solved with the optimal control of the operating number selection and speed ratios for parallel variable speed pumps based on the decision-making. The proposed method was subsequently applied to the pumping set of the water-cooling system in High Magnetic Field Facility. The practical testing results of the proposed method showed its superiority over both the primitive and the previous optimal methods, by considerably lowering the power consumption and accurately calculating the performance parameters in any conditions. The method has universality and simplicity for online implementation, which provides a reference for the control methods of parallel centrifugal pumps in variable flow systems with a differential pressure control strategy.

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