本文报道了开槽密度对R11在烧结多孔表面池沸腾换热性能影响的实验研究.观察发现,多孔表面开槽,让蒸汽从槽道逸出、液体从多孔区吸入到受热面,将增强池沸腾换热.沸腾特征可分为液体灌注、槽道起泡、底部蒸干三个区.对特定的多孔层,合理开槽可获得较好的换热效果.带槽道的多孔表面实验件与均匀多孔表面相比,在相同壁面过热度条件下,热流密度提高2～10倍,临界热流密度提高2～4倍.
参考文献
| [1] | Rohsenow W M;Hartnett J P;Ganic E N.Handbook of Heat Transfer[M].McGraw-Hill Publisher,1987 |
| [2] | MALYSHENKO S P .Features of Heat Transfer with Boiling on Surfaces with Porous Coating[J].Thermal Engineering,1991,38(02):81-88. |
| [3] | Mughal M P;Plumb O A .An Experimental Study of Boiling on a Wicked Surface[J].International Journal of Heat and Mass Transfer,1996,39:771-777. |
| [4] | STUBOS A K;Buchlin J -M .Enhanced Cooling via Boiling in Porous Layers: The Effect of Vapor Channels[J].ASME Journal of Heat Transfer,1999,121(02):205-209. |
| [5] | H Z Abou-Zyan;O A Plumb .Boiling on Horizontal Surfaces Coated with Porous Metal Wicks[R].ASME HTD-34911,1997. |
| [6] | 杜建华,吴伟,胡雪蛟,王补宣.带开槽结构的多孔表面沸腾换热的双孔隙模型[J].清华大学学报(自然科学版),2001(10):78-81. |
| [7] | K N Rainey;S M You .Pool Boiling Heat Transfer from Plain and Micoporous, Square Pin Finned Surfaces in Saturated FC-72[Z].ASME HTD-364-4,1999. |
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