A simplistic model of cyclic heat transfer phenomena in closed spaces
A simplistic model of cyclic heat transfer phenomena in closed spaces
复制标题
封闭空间循环传热现象的简单模型
DOI：
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发表时间：
1983
期刊：
影响因子：
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通讯作者：
K. Lee
中科院分区：
文献类型：
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作者：
K. Lee
利用一个简单的传热模型，分析了封闭空间内的循环传热。该模型由一个气体层与两个边界平行的壁，在横向方向上相互脉动交换热量。得到了传热量和相位滞后的关联式。此外，由于循环传热的功率损失的表达式。结果表明，当传热过程接近等温或绝热条件时，损失接近于零。示出的功率损耗是一个强大的函数的相位角之间的散装气体温度和传热。
Cyclic heat transfer inside closed spaces is investigated analytically using a simple heat transfer model. The model consists of a gas layer exchanging heat with two bounding parallel walls that pulsate against each other in the transverse direction. Correlations for the magnitude and the phase lag of the heat transfer are obtained. Also, an expression for the power loss due to the cyclic heat transfer is presented. It is shown that the loss approaches zero as the heat transfer process approaches either isothermal or adiabatic conditions. The power loss is shown to be a strong function of the phase angle between the bulk gas temperature and the heat transfer.