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Abstract
Air conditioning in the room functions to regulate humidity, heating and cooling the air in the room. The purpose of this conditioning is to provide comfort for the user. The process of cleaning the condenser and evaporator pipe fins can improve compressor performance. The research was conducted on an air conditioner with a capacity of 1 1/2 PK using refrigerant R-22. With an average mass flow rate of 82.5 kg/s before cleaning and 79.6 kg/s after cleaning, it decreased by 4.4%. This has an impact on refrigeration where the average value of the impact of refrigeration before cleaning is 145.4 kJ/kg and after cleaning is 150.6 kJ/kg. This means that after the cleaning process, the evaporator can increase the refrigeration in the air conditioning system by 3.4%. The parameters used are the consumption of electrical power, the temperature of the refrigerant entering and leaving the condenser, the temperature of the refrigerant entering and leaving the evaporator. The increase in compressor performance after the cleaning process is carried out, it can be seen from the total value of electrical energy use before cleaning is 10.9 kWh, and after cleaning it becomes 8.8 kWh. This has an effect on the consumption of electrical energy to drive the compressor to be more efficient by 19.26%. COP an average of 3.6 before cleaning and after cleaning to 4.9 means an increase in compressor work by 1.3 or by 26.5%. Compressor work has decreased by 4440.4 Watts or a decrease of 26.8%.
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References
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References
Arismunandar,W., Penyegaran Udara,PT Pradnya Paramita Jakarta.Saito, H. 2002, Cetakan ke-6,
Arora, C.P., 2000, Refrigeration and Air Conditioning, Second Edition. Tata Mc. Graw-Hill.
Wang, S.K. and Lavan, Z. 1999, AirConditioning and Refrigeration.
Frank Kreith, 1999 - Mechanical Engineering Hand Book.
Stoecker, Wilbert F., Jerold W. J., 1992. Refrigerasi Dan Pengkondisian Udara, alih bahasa Supratman Hara, Edisi Kelima, Penerbit Erlangga, Jakarta.
JP. Damanik, 2005, Teknik Pendingin, Jakarta.
Ozkar F. Homzah, Studi Kinerja Mesin Pengkondisi Udara Tipe Terpisah (AC Split) pada Gerbong Penumpang Kereta Api Ekonomi, Jurusan Teknik Mesin, Fakultas Teknik, Universitas Tridinanti Palembang, Jurnal Untirta, Volume II Nomor 2, November 2016, ISSN 2407-7852.
ASHRAE GRP 158. 1979. Cooling and Heating Calculations Manuals, American Society, of Heating, Refrigerating and Air Conditioning Engineers, Atlanta, GA.
Daryanto, 2017. Teknik Pendingin AC, Freezer, Kulkas. Bandung : Yrama Widya.