EXPERIMENTAL STUDY ON CO2 FLOW THROUGH ELECTRONIC EXPANSION VALVE

摘要：

This study reports the experimental results of the mass flow rate of carbon dioxide through the electronic expansion valve(EEV) of which orifice diameters were 1.6 mm and 1.8 mm, respectively. The mass flow rates were measured at various EEV inlet temperatures and pressures for several EEV openings. The EEV inlet temperature was varied from 10℃ to 40℃ at the EEV inlet pressure of 80 bar and 100 bar, respectively. The mass flow rate of carbon dioxide through the electronic expansion valves ranged from 50 g/s to 120 g/s. The EEV opening and the variation of density around critical point affected the mass flow rate of carbon dioxide. Empirical correlation based on Buckingham π-theorem was developed and expected the experimental data within an average absolute deviation of 5.4％.

作者: Y.W.HWANG O.J.KIM

作者单位: Korea Institute of Machinery and Materials, 171 Jang-dong, Yuseong-gu,Daejeon, 305-343, KOREA

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）