标题：
The performance of radiation cooler for an oscillating fluid flow
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所属单位：
航天学院
发表刊物：
ENERGY
关键字：
Oscillating fluid flow Radiation cooling Temperature distribution Fin length Fin width Emissivity
摘要：
In this work, a radiation cooler performance for an oscillating channel fluid flow is investigated numerically utilizing the commercial software FLUENT. Fluid is heated by constant heat flux at the channel heating end and cooled at cooling end, which through heat pipes transferring fluid heat flux to the radiation cooler. Then, the cooled fluid inversely flows to the heating end periodically. The dynamic grid technology is applied to simulate the oscillating fluid flow and heat transfer in the cooler channel. The temperature distribution and cooling efficiency are investigated for the influence of various emissivity epsilon(f), radiation fin width h and fin length H. The results show that the total radiation surface and cooling efficiency of cooler increase linearly with the rising surface emissivity ef. Heat flux per unit mass of the radiation surface Q(out)/M decreases initially with the increase of radiation fin length H and then tends to be a constant, while increases logarithmically with the increment of radiation fin width h. From the first heat pipe R1 to last one of the flow channel, temperature of radiation surface decreases with "corrugated" distribution pattern. Temperature difference of the radiation surface is less than 4 K. (C) 2017 Elsevier Ltd. All rights reserved.
论文类型：
期刊论文
学科门类：
工学
一级学科：
动力工程及工程热物理
文献类型：
J
ISSN号：
0360-5442
是否译文：
否
发表时间：
2017-03-15
合写作者：
朱桂平
通讯作者：
黄护林
发表时间：
2017-03-15
学位：工学博士学位
职称：教授
所在单位：航天学院