Effect of a Delta-Winglet vortex generator on the performance of a fin-and-tube heat exchanger

Chih Yung Tseng, Jane Sunn Liaw, Yu Choung Chang, Chi-Chuan Wang

研究成果: Conference contribution同行評審

摘要

The aim of this current work is to investigate a Delta-Winglet vortex generator to enhance heat transfer and reduce pressure drop of a fin-and-tube heat exchanger. Three patterns of fin including plate, louver and Delta-Winglet vortex generator geometry were examined in this study. The effect of a Delta-Winglet vortex generator on the performance of a fin-and-tube heat exchanger is experimentally investigated through full-scale wind-tunnel testing of a fin-and-tube heat exchanger under dry-surface conditions. Three types of heat exchangers including 1-row, 2-row and 4-row with plate fin, louver fin and Delta-Winglet vortex generator (VG fin) were tested through different velocity conditions. The heat transfer rate per pumping power is assessed for a plate fin baseline louver fin and for VG fin heat exchanger. For VG fin 1 -row heat exchanger, heat transfer rate per pumping power increase over the baseline case of 20% at a frontal velocity of 1 m/s, and approach the baseline case at a frontal velocity of 2 m/s. For VG fin 2-row heat exchanger, heat transfer rate per pumping power decrease over the baseline case of 15% at full range frontal velocity. The frontal velocity ranges from 2 m/s to 5 m/s, the heat transfer rate per pumping power of plate fin heat exchanger is better than other sample.

原文English
主出版物標題6th Asian Conference on Refrigeration and Air Conditioning, ACRA 2012
發行者Chinese Association of Refrigeration (CAR)
頁面818-825
頁數8
ISBN(列印)9781632660152
出版狀態Published - 1 一月 2012
事件6th Asian Conference on Refrigeration and Air Conditioning, ACRA 2012 - Xi'an, China
持續時間: 26 八月 201228 八月 2012

出版系列

名字6th Asian Conference on Refrigeration and Air Conditioning, ACRA 2012

Conference

Conference6th Asian Conference on Refrigeration and Air Conditioning, ACRA 2012
國家China
城市Xi'an
期間26/08/1228/08/12

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