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Research Paper | Mechanical Engineering | Indonesia | Volume 8 Issue 7, July 2019
The Influence Comparison of the Mass Refrigerant towards Coefficient of Performance Car Air - Conditioning Systems with Refrigerant R-134A
Agil Luthfi Wal'afiah, Sunyoto
The cooling machine is an energy conversion machine used to move heat from low temperatures to high temperatures by adding work from the outside. The mass of the refrigerant affects the COP on the refrigerant. From the characteristics of refrigerant can be known the value of COP, compression work, and cooling capacity to the amount of mass of refrigerant given. To find out how big the influence of R-134a refrigerant mass to COP on car air conditioning. The method used in this study charging refrigerant has different mass weight. The mass weight used in this test is 70, 90, 110, 130, 150, 170, 190 gr. The results of testing the mass-weight variation of R-134a with the car air condition of 1000 cc engine capacity shows the COP of the mass weight of 170 and 190 gr is the best with the values of 6.52 and 7.20. Of the 7 variations in mass weight under study the electrical power of the required AC motors varies considerably, for a mass of 70 g of refrigerant requires 737 watts of power and a mass of 190 g requires 1714.9 watts of power. Thus it can be concluded that the increasing refrigerant, the more weight the work of the cooling machine, thus requiring large electrical power. And the mass weight of 170 gr is the most efficient mass weight for this car's air conditioner.
Keywords: Car Air Conditioning COP, Mass, R-134a
Edition: Volume 8 Issue 7, July 2019
Pages: 1790 - 1796
How to Cite this Article?
Agil Luthfi Wal'afiah, Sunyoto, "The Influence Comparison of the Mass Refrigerant towards Coefficient of Performance Car Air - Conditioning Systems with Refrigerant R-134A", International Journal of Science and Research (IJSR), https://www.ijsr.net/search_index_results_paperid.php?id=ART202027, Volume 8 Issue 7, July 2019, 1790 - 1796
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