Study on Circulation Flow in Closed Loop Pulsating Heat Pipe
學年 110
學期 2
出版(發表)日期 2022-04-01
作品名稱 Study on Circulation Flow in Closed Loop Pulsating Heat Pipe
作品名稱(其他語言) 閉環震盪式熱管之循環流研究
著者 Shung-Wen Kang; Chien-Hsuan Chan; Pai-Chun Hsiao
著錄名稱、卷期、頁數 Journal of the Chinese Society of Mechanical Engineer 43(2), p.79-86
摘要 This research utilized 6 mm outer diameter and 3 mm inner diameter glass tubes to manufacture 9 turns Closed-Loop Pulsating Heat Pipe (CLPHP) with a total length of 1980mm. For achieving the loop circulation easily, a water cooling system kept at 35 ° C was used as the condenser. The experiment was conducted to evaluate the thermal resistance under different fluid filling ratios (20%, 30%, 40%, 50%, 60%, 70% and 80%), and at a series change of heat inputs (40W, 80W, 120W, 160W, 200W). Through a digital video camera, the visualization experiment was carried out to observe the circulation flow period in the PHP. A styrofoam ball was designed to put into the tube for a better observation and a correct estimation of fluid flow direction. Circulation times and circulation period were observed and calculated. The results showed that PHP reached fully circulation under the filling ratio of 60%, 70%, and 80%, at an input power of 200W. The circulation can be categorized into clockwise circulation, counterclockwise circulation and transition circulation status. The CLPHP thermal resistance was observed to be the least in circulation flow situation.
關鍵字 Pulsating Heat Pipe;Circulation Flow;Circulation Period;Thermal Resistance
語言 en
ISSN 0257-9731
期刊性質 國外
收錄於 SCI EI
通訊作者 Shung-Wen Kang
國別 TWN
出版型式 ,電子版