| 面向绿色制造的高效冷却技术及其试验 |
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| 引用本文： | 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. |
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| 作者姓名： | 安庆龙 傅玉灿 徐九华 王云峰 任守良 徐鸿钧 |
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| 作者单位： | 南京航空航天大学机电学院,中国南京210016 |
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| 基金项目： | 航空科学基金（02H52042）资助项目;江苏省自然科学基金（BK2002415）资助项目. |
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| 摘 要： | 绿色制造和高效加工是21世纪先进制造业的必然趋势,为实现绿色高效加工,本文提出了一种新型的绿色高效冷却技术——低温气动喷雾射流冲击冷却技术,通过低温气流运载少量冷却液以喷雾射流冲击的形式到达加工区实现强化换热,将加工区的换热水平提高到一个全新的水平.瞬态实验结果表明,在射流速度40 m/s、靶距10 mm的射流条件下,这种冷却方式可提供的临界热流密度高达60W/mm^2,相对于磨削发生烧伤的临界热流密度提高了6倍以上.
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| 关 键 词： | 高效冷却 喷雾射流冲击 强化传热 临界热流密度 |
| 收稿时间： | 05 11 2004 12:00AM |
| 修稿时间： | 01 17 2005 12:00AM |
HIGH EFFICIENCY COOLING TECHNOLOGY BASED ON GREEN MANUFACTURING |
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| AN Qing-long, FU Yu-can, XU Jiu-hua, WANG Yun-feng, REN Shou-liang, XU Hong-jun.HIGH EFFICIENCY COOLING TECHNOLOGY BASED ON GREEN MANUFACTURING[J].Transactions of Nanjing University of Aeronautics & Astronautics,2005,22(3):230-233. |
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| Authors: | AN Qing-long FU Yu-can XU Jiu-hua WANG Yun-feng REN Shou-liang XU Hong-jun |
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| Institution: | College of Mechanical and Electrical Engineering, NUAA, 29 Yudao Street, Nanjing, 210016,P. R. China |
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| 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. |
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| Keywords: | high efficiency cooling mist jet impinging enhancing heat transfer critical heat flux |
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