追設凝縮器を用いた空調機の運転

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  • Operation of Air-conditioning Machine with an Additional Condenser
  • ツイセツギョウシュクキ オ モチイタ クウチョウキ ノ ウンテン

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By installing an additional condenser on the air-conditioning machine designed for HCFC22, a more efficient heat pump system could be operated with HFCI34a 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°C when operating with HFC134a.

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