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Experimental research on performance of room air conditioner with alternative refrigerants at high ambient temperature.

[In Chinese. / En chinois.]

Author(s) : LIU Z., HU M., LI T.

Type of article: Article

Summary

Alternative refrigerants such as R290 and R32 are gradually being applied to room air conditioners (RACs). This study tested
the performances of R290 , R22 , R410A, and R32 in the same system. The capacity and efficiency reduction values at high ambient temperatures for R290 , R32 , R410A, and R22 were measured. The ambient temperatures were 35, 46, 52 and 55°C respectively. The experimental results showed that R22 had the best performance under the high ambient temperature condition , while R32 had the worst. R290 was very similar to R22. The capacity decrease between R22 and R32 w?3.01% , and the decrease in the energy efficient ratio was 6.03%. Moreover, R32 had the highest discharge temperature and system pressure and was not suitable for an RAC in a high ambient temperature area.

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Pages: 7-13

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