Refrigerant Distribution in a Parallel Flow Heat Exchanger Having Vertical Headers

摘要：

Refrigerant R-410a flow distribution is experimentally studied in a test section simulating a parallel flow heat exchanger having vertical headers with two pass configuration. Tubes are heated to yield a test section outlet superheat of 5 ℃ with inlet quality of 0.3. Mass flux is varied from 50 kg/m2 s to 70 kg/m2 s. Results show that, significant liquid flows through bottom channels, and less liquid is supplied to top channels. It’s shown that with proper selection of inlet and outlet location, thermal degradation can be minimized within several percent.

关键词： Flow distribution Heat exchanger Header Heated tube

作者: Howon Byun Naehyun Kim Jaeho Lee

作者单位: Department of mechanical Engineering University of Incheon 406-772 Republic of Korea

会议类型: 国际会议

会议名称: 4th International Symposium on Heat Transfer and Energy Conservation(第四届传热与节能国际研讨会 ISHTEC2012)

会议地点: 广州

会议语种:英文

页码: 1-4

在线出版日期: 2012-01-06（万方平台首次上网日期，不代表论文的发表时间）