The effect of variation of extra fan condenser and engine speed to COP of mobile air conditioners

Efforts to increase coefficient of performance (COP) of Mobile Air Conditioners (MAC) still continue to be done, including by increasing the extra fan condenser speed. The problem is whether it can improve the COP, it needs to be tested further. This study focuses to examine the effect of extra fan...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2021-02, Vol.1073 (1), p.12077
Main Authors: Nurhadi, N, Listiyono, L, Maskuri, M, Prasetyo, B R
Format: Article
Language:English
Subjects:
Air conditioners
Cooling effects
Cooling rate
Enthalpy
Evaporators
Gas expanders
Mathematical analysis
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Summary:Efforts to increase coefficient of performance (COP) of Mobile Air Conditioners (MAC) still continue to be done, including by increasing the extra fan condenser speed. The problem is whether it can improve the COP, it needs to be tested further. This study focuses to examine the effect of extra fan condenser and engine speed variations to COP. This study was conducted on a MAC engine stand which able to measure the pressure and temperature of MAC system. The data measured at inlet compressor (P1, T1), outlet compressor (P2, T2), outlet condenser (P3, T3), and outlet expansion valve (P4, T4), at engine speed of 1.000, 1.500, 2.000, 2.500 and 3.000 rotation per minute (RPM), respectively with variations extra fan condenser speed of 0.15, 1.74, and 2.22 m/sec. The data was plotted on p-h diagram to obtain enthalpy value, so that obtained COP value by calculation. The major result obtained are the variations of extra fan condenser and engine speed had an effect on the COP. The highest COP (4.48) was achieved at an engine speed of 2,000 RPM with extra fan condenser speed 2.22 m/sec. Increasing extra fan condenser speed causes better cooling at condenser and cooling effect on the evaporator.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/1073/1/012077