PERFORMANCE OF A MIXED REFRIGERANT J-T REFRIGERATOR WITH A PHASE SEPARATOR

摘要：

Temperatures as low as -200 ℃ can be obtained in a single stage using auto refrigerant cascade or J-T refrigerators operating with mixtures. Conventional air conditioning compressors can be used in these systems because of the low operating pressures (typically 20/3 bar). One way of improving the reliability of these systems and prevent freezing of oil and high boilers at low temperatures is to use a phase separator (flash chamber) where most of the high boilers are separated at a temperature of -20 to -30 ℃ and returned to the compressor. Since the lubricating oil is normally soluble in the high boilers, the lubricating oil is also returned to the compressor at relatively high temperatures.In this paper we present the results obtained by us in our prototype refrigerator with argon-hydrocarbon mixtures.

作者: H.Gurudath Nayak S.Srinivasa Murthy G.Venkatarathnam

作者单位: Refrigeration and Airconditioning Laboratory Department of Mechanical Engineering Indian Institute of Technology Madras Chennai 600036, India

会议类型: 国际会议

会议名称: The 22nd International Congress of Refrigeration(第22届国际制冷大会)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-21（万方平台首次上网日期，不代表论文的发表时间）