S081015 低GWP冷媒のターボ冷凍機への適用研究([S08101]高効率ヒートポンプの要素技術とその応用)

概要

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The centrifugal chiller, which is used as heat generating equipment for the central air conditioning facilities, uses HFC as refrigerant. HFC is used as alternate refrigerant for CFC and HCFC which destroy layer of ozone. However, HFC is high GWP(Global Warming Potential), so there is need for low GWP refrigerant with the object of preventing global warming. HFO1234ze(E) is developed as alternate for SF6 and GWP is 6. It is one of alternate refrigerant for the centrifugal chiller because properties are similar to HFC-134a. We estimate whether HFO1234ze(E) is useful for the centrifugal chiller. POE oil is used to the centrifugal chiller with HFC as lubricant. Result of compatibility test between POE oil and HFO1234ze(E) is good. And almost elastomeric material which used the chiller with HFC-134a are good compatibility with HFO1234ze(E). Performance of the chiller with HFO1234ze(E) is equivalent to HFC-134a from result of drop-in test with the chiller.
一般社団法人日本機械学会の論文
2011-09-11