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http://dx.doi.org/10.3795/KSME-B.2015.39.9.713

Study of Compressor-Performance Improvement in Automotive Air-Conditioning System  

Kim, Young Shin (R&D Center, Halla Visteon Climate Control Corp.)
Yoo, Seong Yeon (Dept. of Mechanical Design Engineering, Chungnam Nat'l Univ.)
Na, Seung Gyu (R&D Center, Halla Visteon Climate Control Corp.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.39, no.9, 2015 , pp. 713-718 More about this Journal
Abstract
The purpose of this study is to realize compressor-performance improvements in the fuel economy of an automotive air-conditioning system. We conduct cooling performance tests in a compressor calorimeter test stand. To improve the cooling performance, we investigate the increase in the suction flow rate and the decrease in the discharge dead volume. Based on the results of the test, we found that the cooling capacity and the coefficient of performance (COP) of the compressors were improved as follows. The cooling performance improved greater at high speeds than low speeds in the case of an increase in the suction flow rate increase, and it improved more at low speeds than at high speed when there was a decrease in the discharge dead volume. When both of the above factors were included, we observed that the improvement effects were generally balanced for both high- and low-speed modes, and there was a significant improvement in the discharge temperature. The improvement was found to be about 3.2% at low speed, 8.3% at high speed during in cooling performance improvement, about 5.8% at low speed and about 6.2% at high speed in COP improvement, and there was a decrease of about $3^{\circ}C$ at low speed and a $5^{\circ}C$ decrease at high speed in discharge temperature.
Keywords
Air Conditioning System; Compressor; Fuel Economy; Automobile; Performance; COP;
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  • Reference
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