南京航空航天大学学报(英文版)2005,Vol.22Issue(3):230-233,4.
面向绿色制造的高效冷却技术及其试验
HIGH EFFICIENCY COOLING TECHNOLOGY BASED ON GREEN MANUFACTURING
摘要
Abstract
Green manufacturing (GM) and high efficiency machining technology are inevitable trends in the field of advanced manufacturing of the 21st century. To ensure green and high-efficiency machining, a new high efficiency cooling technology-cryogenic pneumatic mist jet impinging cooling (CPMJI) technology is presented. For obtaining the best cooling effect, a little quantity of coolant is carried by high speed cryogenic air (-20 C ) and reaches the machining zone in the form of mist jet to enhance heat transfer. Experimental results indicate that under the conditions of 40 m/s in the jet impinging speed and 10 mm in the jet impinging distance, the critical heat flux(CHF) nearly reaches 6× 107 W/m2, more than six times of the CHF of the grinding burn with a value of (8~10)×106 W/m2.关键词
高效冷却/喷雾射流冲击/强化传热/临界热流密度Key words
high efficiency cooling/mist jet impinging/enhancing heat transfer/critical heat flux分类
矿业与冶金引用本文复制引用
安庆龙,傅玉灿,徐九华,王云峰,任守良,徐鸿钧..面向绿色制造的高效冷却技术及其试验[J].南京航空航天大学学报(英文版),2005,22(3):230-233,4.基金项目
航空科学基金(02H52042)资助项目 (02H52042)
江苏省自然科学基金(BK2002415)资助项目.Supported by the Aeronautical Science Foundation of China (02H52042) (BK2002415)
the Natural Science Foundation of Jiangsu Province of China (BK2002415). (BK2002415)