THE FUNCTIONS OF LUBRICATION IN CO2 HEAT PUMP WITH EXPANDER
The fundamentals concerning the influence of oil on the various components of carbon dioxide heat pump are discussed; especially the favorable and unfavorable influences of the lubricant. Because the function of oil in compressor is different from that of oil in expander, the emphases of studying are putted in the CO2 expander; such as the oil film thickness in the leakage passage and the flow working of high pressure oil-refrigerant mixtures all are researched by use of the theory and the experimentation.
Heat pump CO2 Transcritical cycle Expander Lubrication Leakage
Qingsong AN Yitai MA Hua TIAN
Thermal Energy Research Institute, Tianjin University, Tianjin, 300072, China
国际会议
The 22nd International Congress of Refrigeration(第22届国际制冷大会)
北京
英文
2007-08-21（万方平台首次上网日期，不代表论文的发表时间）