[1]端 震,赵孝保,董 庆.垂直矩形微槽群内部相变换热的实验研究[J].南京师范大学学报(工程技术版),2008,08(02):032-35.
　Duan Zhen,Zhao Xiaobao,et al.Experimental Study on the Phase-change Heat Transfer in Vertically Rectangular Micro-capillary Grooves[J].Journal of Nanjing Normal University(Engineering and Technology),2008,08(02):032-35.
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垂直矩形微槽群内部相变换热的实验研究
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南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
08卷
期数:
2008年02期
页码:
032-35
栏目:
出版日期:
2008-06-30

文章信息/Info

Title:
Experimental Study on the Phase-change Heat Transfer in Vertically Rectangular Micro-capillary Grooves
作者:
端  震1;  2;  赵孝保2;  董  庆3
1. 南京市锅炉压力容器监督检验所, 江苏南京210002; 2. 南京师范大学动力工程学院, 江苏南京210042;
3. 山东省科学院能源研究所, 山东济南250014
Author(s):
Duan Zhen1; 2; Zhao Xiaobao2; Dong Qing3
1.Nanjing Institute of Boiler and Pressure Vessel Supervisory Inspection,Nanjing 21002,China;2.School of Power Engineering,Nanjing Normal University,Nanjing 210042,China;3.Energy Research Institute of Shandong Academy of Sciences,Jinan 250014,China
关键词:
微槽群;  相变换热;  最大热流密度;  薄液层
Keywords:
m icro-cap illary grooves;  phase- change;  m ax ima l heat flux;  th in liqu id layer
分类号:
TK124
摘要:
以无水乙醇和水为工质,对垂直带有微槽群的紫铜基板表面的相变换热的特征进行了实验研究.结果表明,微槽宽度越窄,深度越深且液位越高,微槽群板的蒸发换热能力越强;工质为蒸馏水,基板温度低于130℃时,其最大蒸发换热强度达到5.36×105W/m2,工质为无水乙醇,基板温度低于108℃时,其最大蒸发换热热流密度超过3.51×105W/m2.换热强度高于在光滑表面的池沸腾换热强度.
Abstract:
Us ing d istilled wa ter and e thano l as the wo rk ing flu id, an exper im enta l investig ation about the phase change heat transfer is performed on a vertical copper p late w ith rectangularm icro-capillary g rooves. Experim ental resu lts show tha t the evapo ra ting heat transfer perfo rm ance of the copper p la tew ith m icro-capillary g rooves w ill enhance w ith the dec rease o f w idth in m icro groove, the increase o f depth in m icro groove and the ra ise of liqu id level in evapo ra tor. The evapo ra ting perform ance in m icro-g rooves keep the copper plate be low 130 and 108 , reaches 5 36 105 W /m2, 3 51 105 W /m2, respec tive ly, when distilled wa ter and ethano l are used as thew ork ing flu id. The heat transfer on the m icro-groov e surface is m uch enhanced com pa red to the poo l nucleate bo iling on a sm ooth surface.

参考文献/References:

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相似文献/References:

[1]李 蓓,赵孝保,刘 瑛,等.矩形微槽微冷系统相变换热实验的研究[J].南京师范大学学报(工程技术版),2007,07(04):045.
　Li Bei,Zhao Xiaobao,Liu Ying,et al.An Experimental Study on Phase-Change Heat Transfer in Rectangular Micro-Capillary Grooves Cooling System[J].Journal of Nanjing Normal University(Engineering and Technology),2007,07(02):045.

备注/Memo

备注/Memo:
基金项目: 江苏省自然科学基金( 2006222)资助项目.
通讯联系人: 端 震, 工程师, 研究方向: 压力容器检测及传热技术. E-m ail:zhaoxiaobao@ n jnu. edu. cn
更新日期/Last Update: 2013-04-24