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首页> 外文期刊>International Journal of Heat and Mass Transfer >Transient characterization of flat plate heat pipes during startup and shutdown operations
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Transient characterization of flat plate heat pipes during startup and shutdown operations

机译：平板热管在启动和关闭过程中的瞬态特性

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摘要

Analytical models for predicting the transient performance of a fiat plate heat pipe for startup and shutdown operations are developed in this work. These models can be utilized separately for a startup or a shutdown operation, respectively. The two models can also be combined together to simulate the thermal performance of a flat plate heat pipe in cyclical startup and shutdown operations. The transient temperature distributions in the heat pipe walls and wicks are presented in this work. The results reveal that the thermal diffusivity, the thickness of the wall and the wick, and the heat input pattern affect the heat pipe time constants. The wicks create the main thermal resistance resulting in the largest temperature drop in the heat pipe, thus substantially influencing the performance of the heat pipe.
机译：在这项工作中，开发了用于预测平整板热管在启动和关闭操作时的瞬态性能的分析模型。这些模型可以分别用于启动或关闭操作。这两个模型也可以组合在一起以模拟平板式热管在周期性启动和关闭操作中的热性能。这项工作介绍了热管壁和灯芯中的瞬态温度分布。结果表明，热扩散率，壁和灯芯的厚度以及热输入模式会影响热管时间常数。灯芯产生主要的热阻，从而导致热管中的最大温度下降，从而显着影响热管的性能。

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