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纳米流体重力热管启动性能的试验研究
引用本文:周根明,周少华,赵忠超,赵忠梁.纳米流体重力热管启动性能的试验研究[J].江苏科技大学学报(社会科学版),2013(4):376-380.
作者姓名:周根明  周少华  赵忠超  赵忠梁
作者单位:江苏科技大学能源与动力学院,江苏镇江,212003
基金项目:江苏科技大学青年骨干教师基金资助项目;江苏科技大学引进人才科研启动基金资助项目;江苏科技大学研究生创新计划支持项目
摘    要:对去离子水、不同浓度和不同充液率的TiO2/H2 O纳米流体重力热管进行了测试,给出了这些热管启动过程的温度分布图。结果表明:在恒温水浴加热的试验条件下,与去离子水热管相比,纳米流体热管蒸发段启动温度低并且启动时间短,其蒸发段和冷凝段的最大温差与去离子水热管相比较低;在50%~70%充液率范围内热管蒸发段的启动时间随着充液率的增大而增加;热管启动时间随着加热温度的升高而缩短;热管倾斜角度较小的情况下将使其启动性能变差。

关 键 词:纳米流体  重力热管  启动性能  试验研究

Experimental study of the start-up process of gravity heat pipes filled with nanofluids
Zhou Genming , Zhou Shaohua , Zhao Zhongchao , Zhao Zhongliang.Experimental study of the start-up process of gravity heat pipes filled with nanofluids[J].Journal of Jiangsu University of Science and Technology:Natural Science Edition,2013(4):376-380.
Authors:Zhou Genming  Zhou Shaohua  Zhao Zhongchao  Zhao Zhongliang
Institution:( School of Energy and Power, Jiangsu University of Science and Technology, Jiangsu Zhenjiang 212003, China)
Abstract:Gravity heat pipes filled with DI water , TiO2/H2 O nanofluilds of different concentration and filling ra-tio were tested ,and the temperature distribution of their start-up processes was given .The result shows that under the test condition of constant temperature water bath , the heat pipes filled with nanofluids have a lower start-up temperature and a shorter start-up time in evaporation section compared with heat pipes filled with DI water , the biggest temperature drop between the evaporation section and the condensation section of heat pipes filled with nanofuilds was lower than that of heat pipes filled with water .The start-up time of heat pipes that have 50%~70%filling ratio in evaporation section increased with the increase of filling ratio , and it also increased by the in-crease of heating temperature .The small inclination angle has a bad influence on the start-up performance of the heat pipes .
Keywords:nanofluids  gravity heat pipe  start-up performance  experimental study
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