Application of Thermosyphon Heat Pipe for Cooling System in the Industrial Machine
Keywords:
heat pipe, coefficient of performance, cooling systemAbstract
The objectives of this research were to design and construct a model of cooling system industrial machinery using a thermosyphon heat pipe. In this study, the thermosyphon heat pipe with diameter ¾ inch and the total length of 0.8 m/unit, 40 units was employed and refrigerant R-134a was used as the working substance within the thermosyphon heat pipe. After the testing system was completely constructed, study the effects of various operating parameters, i.e., water temperatures of 40, 50 and 60 °C and water flow rates of 18, 24 and 30 l/min, on the cooling efficiency, in terms of coefficient of performance or COP, were investigated. In each experiment, collecting data was recorded every 1 minute during 60 minutes of testing. It was found that the cooling efficiency increased with a decrease in the water flow rates. In addition, the higher initial temperature of water led to higher value of the cooling efficiency. The best conditions of this study were water flow rates of 18 l/min, water temperatures of 60 °C and COP of 11.
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