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Research Article |

The Effect of Cooling Load Variations on Basic Refrigerator Simulation Performance

The working principle of the cooling machine is to transfer heat from a place / material with a low temperature to another place / material with a higher temperature. Refrigeration technology is very closely related to modern life, and also the convenience of life. Currently, refrigeration machine innovation is very rapid development, one of which is a basic refrigerator simulation machine. For testing carried out for 1.5 hours with data collection for 5 minutes using variations in lamp loads, so that the data obtained from the test process in the basic refrigerator simulation with two evaporators include: Temperature, pressure, electric current, voltage, Cos φ and the length of the test process, the COP (Coefficient of Performance) and input power needed can be calculated. The resulting temperature in box 1 (freezer) is -5.5°C in the 14th minute and in box 2 (chiller) is 8°C. The relationship between the cooling load and the COP of the system forms a parabolic curve, where the largest COP position is found at a load between 50 watts to 75 watts, and then the COP of the system decreases. The decrease in temperature of evaporator box 2 (chiller) is longer than the temperature of box 1 (freezer), this is because on the exit side of evaporator box 2 (chiller) installed EPR valve (evaporator pressure regulator) where this valve functions to hold the temperature of the evaporator.

Basic Refrigerator Simulation Machine, Evaporator, EPR Valve, COP

APA Style

Baliarta, N. G., Yusuf, M. (2024). The Effect of Cooling Load Variations on Basic Refrigerator Simulation Performance. American Journal of Mechanical and Industrial Engineering, 9(1), 1-7.

ACS Style

Baliarta, N. G.; Yusuf, M. The Effect of Cooling Load Variations on Basic Refrigerator Simulation Performance. Am. J. Mech. Ind. Eng. 2024, 9(1), 1-7. doi: 10.11648/ajmie.20240901.11

AMA Style

Baliarta NG, Yusuf M. The Effect of Cooling Load Variations on Basic Refrigerator Simulation Performance. Am J Mech Ind Eng. 2024;9(1):1-7. doi: 10.11648/ajmie.20240901.11

Copyright © 2024 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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