| 纳米悬浮液热虹吸管的传热性能试验研究 |
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| 引用本文： | 向军,李菊香.纳米悬浮液热虹吸管的传热性能试验研究[J].热能动力工程,2010,25(2). |
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| 作者姓名： | 向军 李菊香 |
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| 作者单位： | 南京工业大学,能源学院,江苏,南京,210009 |
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| 基金项目： | 江苏省自然科学基金资助项目 |
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| 摘 要： | 在相同的试验条件下,对比研究了纳米CuO-去离子水(DW)悬浮液重力热管与普通DW重力热管的启动性和等温性,研究了纳米工质热管的充液率和颗粒浓度对热管工作特性的影响,对纳米工质热管的强化传热机理进行了初步探讨。研究表明:纳米工质热管比普通热管启动快;纳米工质热管蒸发段外壁温的高低与充液率、纳米浓度和加热条件有关;纳米颗粒浓度和充液率对热管的传热性能影响较大,且存在最佳浓度(本研究为5%)和最佳充液率(本研究为44.3%);高浓度纳米工质热管比普通DW重力热管易于达到传热极限;试验中纳米悬浮液重力热管的传热强化率为16.19%～146.27%。
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| 关 键 词： | CuO纳米悬浮液 热虹吸管 强化传热 Brownian运动 充液率 浓度 |
Experimental Study of the Heat Transfer Performance of a Nano-suspension-based Thermosyphon Pipe |
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| XIANG jun,LI Ju-xiang.Experimental Study of the Heat Transfer Performance of a Nano-suspension-based Thermosyphon Pipe[J].Journal of Engineering for Thermal Energy and Power,2010,25(2). |
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| Authors: | XIANG jun LI Ju-xiang |
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| Affiliation: | XIANG jun,LI Ju-xiang (College of Energy Source,Nanjing Polytechnical University,Nanjing,China,Post Code: 210009) |
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| Abstract: | Under the same test conditions, contrasted and studied were the startup and isothermal characteristics of a gravity heat pipe filled with nano-CuO-deioned water (DW) suspension and a common DW gravity heat pipe. Moreover, the influence of the liquid-filling rate and the particle concentration of the nano-working medium heat pipe on its working characteristics was studied with a preliminary exploration of the mechanism governing the intensified heat transfer of the heat pipe. It has been found that the nano-... |
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| Keywords: | CuO nano-suspension thermosyphon pipe intensified heat transfer nano working medium Brownian motion |
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