Experimental study of heat transfer and pressure drop of supercritical CO2 cooled in metal foam tubes
Experimental study of heat transfer and pressure drop of supercritical CO2 cooled in metal foam tubes
复制标题
超临界CO2在金属泡沫管内冷却的传热与压降实验研究
DOI：
10.1016/j.ijheatmasstransfer.2015.02.013
复制
发表时间：
2015-06
影响因子：
5.2
通讯作者：
Wen-Quan Tao
中科院分区：
文献类型：
--
作者：
Zhan-Bin Liu;Ya-Ling He;Zhi-Guo Qu;Wen-Quan Tao
进行了一项实验，研究在部分填充金属泡沫的管中冷却的超临界CO2的强制对流换热和压降特性。分析了CO2入口压力、质量流量和平均整体温度对传热和压降的影响。此外，参数研究是在不同的孔隙率（空隙率，0.85/0.9/0.95）和孔隙密度（每英寸孔隙数，20/40/60）下进行的。随着孔隙率的增加，传热系数先减小后增大，随着孔隙密度的减小而减小，最后接近恒定值。压降随着孔隙率的减小而单调增大，最后接近恒定值；随着孔隙密度的增大，压降先增大后减小。根据实验数据，提出了传热和摩擦系数的相关性。新相关性预测结果与测量结果之间的最大误差为±15%。
An experiment was conducted to investigate the forced convective heat transfer and pressure drop characteristics of supercritical CO2cooled in tubes partially filled with metal foam. The effects of CO2inlet pressure, mass flow rate and mean bulk temperature on the heat transfer and pressure drop were analyzed. Moreover, the parametric study was performed with different porosities (void fraction, 0.85/0.9/0.95) and pore densities (number of pores per inch, 20/40/60). The heat transfer coefficient decreases at first and then increases as porosity increases, and decreases as pore density decreases and finally approaches to a near constant value. The pressure drop monotonously increases as porosity decreases and finally approaches to a near constant value, and increases at first and then decreases as pore density increases. Based on the experimental data, both correlations for heat transfer and friction factors were proposed. The maximum error between the results predicted by new correlations and measured is ±15%.
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DOI：
10.1016/j.ijheatmasstransfer.2004.08.025
发表时间：
2005
影响因子：
5.2
作者：
K. Leong;Liwen Jin
通讯作者：
K. Leong;Liwen Jin
DOI：
10.1016/j.ijheatmasstransfer.2010.11.037
发表时间：
2011-03
影响因子：
5.2
作者：
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通讯作者：
Zhiyong Wu;C. Caliot;G. Flamant;Zhifeng Wang
影响因子：
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作者：
Hwang, JJ;Hwang, GJ;Chao, CH
通讯作者：
Chao, CH
影响因子：
3.9
作者：
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通讯作者：
P. Jiang;Run-Fu Shi;Yi-Jun Xu;S. He;J. Jackson
DOI：
10.1016/s0017-9310(00)00187-3
发表时间：
2001-04-01
影响因子：
5.2
作者：
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