2013 年 30 巻 4 号 p. 389-399
This paper presents a performance evaluation of HC 600a as a drop-in replacement for R 410A in room air conditioner. In this work, we evaluate room air conditioner with HC 600a refrigerant by the rated cooling condition, half load cooling condition and parameter study of cooling capacity. This room air conditioner was made for R 410A. As a results, cooling capacity decrease with HC 600a in room air conditioner. This is because specific volume of HC 600a is small so that the size of the compressor displacement is not enough. In addition, electric input and COP decrease because the refrigerant pressure drop increases.
