Operation of Air-conditioning Machine with an Additional Condenser

Operation of Air-conditioning Machine with an Additional Condenser

By installing an additional condenser on the air-conditioning machine designed for HCFC22, a more efficient heat pump system could be operated with HFC134a as well as HCFC22 without changing mineral lubricant oil. It was shown that COP for cooling operation was improved when operating with HCFC22 an...

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Veröffentlicht in:Nihon Kikai Gakkai rombunshuu. B hen 2006-04, Vol.18 (4), p.1095-1102
Hauptverfasser: Goto, Makoto, Tanifuji, Koji, Fujita, Masahiro, Yamauchi, Tomohiro, Nagata, Kenji, Ueno, Isao, Hasegawa, Tatsuya
Format: Artikel
Sprache:jpn
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Zusammenfassung:By installing an additional condenser on the air-conditioning machine designed for HCFC22, a more efficient heat pump system could be operated with HFC134a as well as HCFC22 without changing mineral lubricant oil. It was shown that COP for cooling operation was improved when operating with HCFC22 and HFC134a. It was also shown that this heat pump system could be operated at higher ambient temperature exceeding 50 deg C when operating with HFC134a.
ISSN:0387-5016