Experimental investigation on the heat transfer characteristics of vacuum spray flash evaporation cooling
Experimental investigation on the heat transfer characteristics of vacuum spray flash evaporation cooling
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真空喷雾闪蒸冷却传热特性实验研究
DOI：
10.1016/j.ijheatmasstransfer.2016.05.140
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发表时间：
2016-11
影响因子：
5.2
通讯作者：
Hu Han-Ping
中科院分区：
文献类型：
--
作者：
Cheng Wen-Long;Peng Yu-Hang;Chen Hua;Hu Lei;Hu Han-Ping
在空间热控领域，真空喷雾闪蒸冷却被认为是一种有效的高热流密度散热方法。本文建立了一套变液固两相流蒸发器实验系统，研究了喷雾流量和喷雾高度对蒸发器传热特性的影响。实验结果表明，在相同的热流密度下，VSFEC系统只需很小的喷淋流量就能有效地去除热源中的热流，仅为常规喷淋冷却的1/3。与传统的喷雾冷却方式不同的是，在垂直流固液两相流固液流固液两相流固液流由于变结构流控系统是一个开环散热系统，因此基于最优流量的工质消耗降低具有非常重要的意义，特别是对于对重量有严格限制的空间热控系统。此外，喷雾高度对变截面液体燃料电池的传热特性也有重要影响，并得到了一个最佳喷雾高度，在该高度下，可以获得最大的热流密度。
Vacuum spray flash evaporation cooling (VSFEC) is considered as an alternative effective method for dissipating high heat flux in the field of space thermal control. In this paper, a VSFEC experiment system has been developed to investigate the influence of spray flow rate and spray height on the heat transfer characteristics of VSFEC. The experiment results show that the heat flux can be removed efficiently from the heat source in VSFEC system with a very small spray flow rate, which is only one third of that of conventional spray cooling under the same heat flux. And an optimal flow rate exists in VSFEC, at which the heat transfer approaches to a highest value, it is different from conventional spray cooling in which the heat flux increases with the increasing of spray flow rate all the time, in VSFEC, the heat flux firstly increases and then decreases with increasing of flow rate. Since VSFEC system is an open-loop heat dissipation system, it has very important significance that based on the optimal flow rate to reduce working medium consumption, especially for space thermal control system which has a strict limit on weight. In addition, spray height has an important effect on the heat transfer characteristics of VSFEC and an optimal spray height is also obtained at which the maximum value of heat flux can be achieved.
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影响因子：
2.2
作者：
Fan, Han-lin;Cheng, Wen-long;Zhao, Rui;Liu, Qi-nie
通讯作者：
Liu, Qi-nie
影响因子：
9.9
作者：
S. Gopalakrishna;V. Purushothaman;N. Lior
通讯作者：
S. Gopalakrishna;V. Purushothaman;N. Lior
影响因子：
0.4
作者：
O. Miyatake
通讯作者：
O. Miyatake
影响因子：
10.4
作者：
Xiu-wei Li;Xiao-song Zhang;Rongquan Cao;Xiuzhang Fu
通讯作者：
Xiu-wei Li;Xiao-song Zhang;Rongquan Cao;Xiuzhang Fu
DOI：
10.1016/s0017-9310(96)00296-7
发表时间：
1997-07
影响因子：
5.2
作者：
Jong-il Kim;N. Lior
通讯作者：
Jong-il Kim;N. Lior