| 高功率二极管激光器喷雾冷却实验研究 |
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| 引用本文： | 杨波,高松信,刘军,王宏.高功率二极管激光器喷雾冷却实验研究[J].强激光与粒子束,2014,26(7):071001. |
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| 作者姓名： | 杨波 高松信 刘军 王宏 |
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| 作者单位： | 1.中国工程物理研究院 应用电子学研究所, 四川 绵阳 621 900; |
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| 基金项目： | 中国工程物理研究院科学技术发展基金项目(2011A0401019) |
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| 摘 要： | 通过以液氨为制冷工质的开式喷雾冷却系统,在相同实验条件下研究了二极管激光器(DL)热沉喷雾表面分别为光滑表面、均匀密排微孔、深孔和多孔表面结构时的冷却效果,实验结果表明:在热流密度达到300W/cm2时,冷却表面温度均保持在28℃以内,适用于高热流密度下的DL热管理问题;喷雾表面均布微结构能显著强化喷雾冷却性能,当采用均匀密排多孔表面时,散热功率达511.5 W/cm2,对流传热系数为346 701.1W/(m2·℃),传热系数较光滑表面时提高了83.9%。
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| 关 键 词： | 二极管激光器 热管理 喷雾冷却 微结构表面 强化换热 |
| 收稿时间： | 2013/10/17 |
Spray cooling of high power diode laser |
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| Affiliation: | 1.Institute of Applied Electronics,CAEP,P.O.Box 919-1011,Mianyang 621900,China;2.Institute of Engineering Thermophysics,Chongqing University,Chongqing 400030,China |
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| Abstract: | Spray cooling experiments were performed on the heater with different micro-structured surfaces. A smooth surface was also tested for comparison. The micro-structures consisted of uniform porous tunnels with different size, and tests were conducted in an open system with ammonia as the working fluid. When the heat flux was 300 W/cm2, the surfaces temperature was kept below 28 ℃. This result indicated that ammonia was a optional fluid for diode laser cooling application. Moreover, the uniform micro-structured surfaces offered significant performance enhancement of heat transfer. At 511.5 W/cm2, heat transfer coefficient reached to 346 701.1 W/(m2℃) which corresponded to 83.9% increase over smooth surface. |
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| Keywords: | diode laser thermal management spray cooling micro-structured surfaces heat transfer enhancement |
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