載人航天器輻射器面板布局對(duì)散熱能力的影響分析
本文選題:載人航天器輻射器 + 散熱能力; 參考:《航天器工程》2016年03期
【摘要】:以載人航天器廣泛采用的圓筒輻射器為研究對(duì)象,建立輻射器散熱能力數(shù)學(xué)分析模型,對(duì)比分析集中式和分塊式面板布局形式給輻射器散熱能力帶來(lái)的影響,對(duì)比的參數(shù)包括管路長(zhǎng)度、液體工質(zhì)流量和管路入口液體工質(zhì)溫度。計(jì)算結(jié)果表明:在輻射器面板面積和管路長(zhǎng)度相同的前提下,管路長(zhǎng)度和面板分塊數(shù)的變化,會(huì)造成2類輻射器散熱能力的顯著差異,管路長(zhǎng)度越短,面板分塊數(shù)越多,集中式布局輻射器比分塊式布局輻射器的散熱能力越強(qiáng),最大散熱能力差異達(dá)到16.0%,最小散熱能力差異為13.5%。液體工質(zhì)流量和管路入口液體工質(zhì)溫度,對(duì)2類輻射器散熱能力的差異影響較小,不超過(guò)2.0%。因此,輻射器設(shè)計(jì)時(shí)不應(yīng)忽略面板布局對(duì)散熱能力的影響,應(yīng)盡可能集中布置輻射器面板。
[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.
【作者單位】: 中國(guó)空間技術(shù)研究院載人航天總體部;
【基金】:國(guó)家重大科技專項(xiàng)工程
【分類號(hào)】:V444.3
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