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Preliminary test result of an oil compatibility of a low-GWP refrigerant as an alternative to R410A in a compressor test loop.

Number: 0598

Author(s) : CHO J., LEE G., CHOI B., OH B. S., RA H. S., NA S.-I., WANG E., HUR G., LEE B., BAIK Y. J.

Summary

A new alternative refrigerant has to be tested under real operating conditions to investigate its compatibility with lubricant oil, additives, seals, copper or any metal components and varnish in a compressor driving motor. In this study, oil compatibility characteristics of a low-GWP refrigerant as an alternative to R410A in a compressor test loop is preliminarily studied. To determine short and long-term lubricant oil compatibility of a low-GWP refrigerant in a compressor, a simple heat pump cycle test loop is designed and preliminarily tested under accelerated test protocol. R466A is selected as an alternative to R410A. A 6 hp of compressor for R410A, a 20 kW of condenser are selected. To reduce heat source capacity and to control inlet condition of a compressor, a shell type evaporator with a 15 kW electric heater is designed. An oil characteristic such as a viscosity and a decomposed ion using an ion chromatography are measured after each operation time schedule.

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  • Original title: Preliminary test result of an oil compatibility of a low-GWP refrigerant as an alternative to R410A in a compressor test loop.
  • Record ID : 30033280
  • Languages: English
  • Subject: HFCs alternatives
  • Source: 14th IEA Heat Pump Conference 2023, Chicago, Illinois.
  • Publication date: 2023/05

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