熱回路網法による空気調和用熱交換器性能の予測 : 蒸発器の能力に対する風量不均一と冷媒パスパターンの影響(熱工学,内燃機関,動力など)

Abstract

This paper presents an influence of air flow unbalance on performance of an evaporator and an effect of refrigerant flow path pattern. To estimate the influence, we applied thermal network method that can take refrigerant quality distribution in the heat exchanger into account. The prediction shows that performance of the evaporator falls by 6% with 40% of unbalance of air flow rate for a simple 2 rows and 2 paths heat exchanger. Also, the prediction shows that the performance will be recovered to the level when air flow distribution is uniform by optimizing refrigerant flow path pattern.