80゜C高温風吹き出しエアコン用熱交換器の開発 [in Japanese] Development of Heat Exchangers for Air-conditioners Capable of Supplying High-temperature(80゜C)Air [in Japanese]
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A new kind of heat exchanger for air conditioners was studied analytically and experimentally and the following results were obtained.<br>To supply high-temperature air, it is effective to use "Pair Heat Exchangers" where fins are separated between pipe rows and the refrigerant flows counter-crosswise to the air flow.<br>These heat exchangers enabled air at 80°C to be supplied by HCFC-22 air-conditioners when the discharge pressure was 3.0 MPa and refrigerant temperature at the inlet of heat exchanger was 120°C.<br>The main effect of dividing fins is to prevent heat conduction between pipe rows through the fins.
Trans.JSRAE 12(2), 185-190, 1995-07-31
Japan Society of Refrigerating and Air Conditioning Engineers