载人航天器辐射器面板布局对散热能力的影响分析

发布时间：2018-05-25 20:12

本文选题：载人航天器辐射器 + 散热能力　；参考：《航天器工程》2016年03期

【摘要】：以载人航天器广泛采用的圆筒辐射器为研究对象,建立辐射器散热能力数学分析模型,对比分析集中式和分块式面板布局形式给辐射器散热能力带来的影响,对比的参数包括管路长度、液体工质流量和管路入口液体工质温度。计算结果表明:在辐射器面板面积和管路长度相同的前提下,管路长度和面板分块数的变化,会造成2类辐射器散热能力的显著差异,管路长度越短,面板分块数越多,集中式布局辐射器比分块式布局辐射器的散热能力越强,最大散热能力差异达到16.0%,最小散热能力差异为13.5%。液体工质流量和管路入口液体工质温度,对2类辐射器散热能力的差异影响较小,不超过2.0%。因此,辐射器设计时不应忽略面板布局对散热能力的影响,应尽可能集中布置辐射器面板。
[Abstract]:Taking the cylindrical radiator widely used by manned spacecraft as the research object, the mathematical analysis model of radiator's heat dissipation capacity is established, and the influence of centralized and partitioned panel layout on the radiator's heat dissipation ability is compared and analyzed. The parameters for comparison include pipeline length, liquid working fluid flow and inlet liquid working fluid temperature. The results show that under the same radiator panel area and pipe length, the variation of pipe length and panel block number will result in significant difference in heat dissipation ability of two types of radiators. The shorter the pipe length, the more the number of panel blocks. The greater the heat dissipation ability of the centralized layout radiator, the greater the maximum heat dissipation capacity is 16.0, and the minimum heat dissipation capacity difference is 13.5. The flow rate of liquid working fluid and the temperature of liquid working fluid at the inlet of pipeline have little effect on the heat dissipation ability of two kinds of radiators, and do not exceed 2.0. Therefore, the effect of panel layout on heat dissipation ability should not be ignored when radiators are designed, and radiator panels should be arranged as much as possible.
【作者单位】：中国空间技术研究院载人航天总体部;
【基金】：国家重大科技专项工程
【分类号】：V444.3

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