动力型分离式热管蓄能装置的数值模拟
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摘要
为了研究动力型分离式热管蓄能装置中相变材料(PCM)的蓄能和释能过程中的传热情况,进行了热管蓄能装置蓄能和释能过程的数值模拟。建立了动力型热管蓄能装置蓄能及释能过程的物理模型,采用Solidification/Melting模型对热管内部的蓄能和释能过程进行了数值模拟分析,得到了动力型分离式热管稳定运行时的温度分布和液相率分布,并探讨了蓄能和释能过程所用的时间以及PCM在各个时间节点的温度值,计算结果与实验结果的对比表明两者吻合性较好。
The energy storage and release process in the power type separated heat pipeenergy storage device were numerically simulated in order to analyze the heat transfer of PCM in the energy storage and release process of the heat pipe energy storage device. The physical model of energy storage and release process of heat pipe energy storage device was established. By using Solidification/Melting model, the energy storage and release process in the heat pipe were simulated to obtain the temperature distribution and the liquid phase ratio distribution of power type separated heat pipe under steady state. The time of energy storage and release process of energy storage material and the temperature value of PCM at each time node were discussed. Moreover, the comparison result indicates that there is a good agreement between the numerical simulation results and the experimental results.
The energy storage and release process in the power type separated heat pipeenergy storage device were numerically simulated in order to analyze the heat transfer of PCM in the energy storage and release process of the heat pipe energy storage device. The physical model of energy storage and release process of heat pipe energy storage device was established. By using Solidification/Melting model, the energy storage and release process in the heat pipe were simulated to obtain the temperature distribution and the liquid phase ratio distribution of power type separated heat pipe under steady state. The time of energy storage and release process of energy storage material and the temperature value of PCM at each time node were discussed. Moreover, the comparison result indicates that there is a good agreement between the numerical simulation results and the experimental results.
引文
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[2] 方贵银,张曼,吴双茂,等.分离式热管蓄冷空调系统充冷性能实验研究[J].制冷学报,2009,30(4):46-50.
[3] 方贵银.蓄能空调技术[M].北京:机械工业出版社,2006.
[4] 胡张保,张志伟,金听祥,等.分离式热管在机房空调系统中应用研究进展[J].低温与超导,2015,43(1):64-68.
[5] 徐珩.动力型分离式热管在蓄能装置上的应用研究[D].南昌:南昌大学,2018.
[6] 戴源德,易勇,温鸿.螺旋管式相变蓄能换热器的蓄冷特性[J].科学技术与工程,2016,16(27):141-146.
[7] 孙金丛,杜鹏,李培生,等.螺旋管式相变蓄能箱蓄能过程的数值模拟[J].流体机械,2017,45(4):76-81.
[8] 张曼,杨帆,吴双茂,等.分离式螺旋热管在蓄冷系统的换热特性分析[J].低温与超导,2008,36(4):45-47.
[9] 王飞,王铁军,王俊,等.动力型分离式热管在机房空调中研究与应用[J].低温与超导,2014,42(11):68-71.
[10] 朱恂,廖强,李隆键,等.添加物对石蜡相变螺旋盘管蓄热器蓄热和放热性能的影响[J].热科学与技术,2005,4(1):14-19.