Is a non-phase change heat pipe a new heat pipe?
Is a non-phase change heat pipe a new heat pipe?
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DOI：
10.1016/j.ijheatmasstransfer.2019.118676
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发表时间：
2019-12
影响因子：
5.2
通讯作者：
Sara Kloczko;A. Faghri;Yuhua Li
中科院分区：
文献类型：
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作者：
Sara Kloczko;A. Faghri;Yuhua Li
无灯芯的非相变热管（NPCHP）是一种新型热管，它在稳态运行时不依赖于灯芯或相变，传热由热输入的压力响应驱动，而不是相变。NPCHP并不像建议的那样是一种新设备，而是一种具有非常高填充率的循环热虹吸。本文重点通过实验和数值模拟证明了NPCHP作为一种过充循环热虹吸是一种有效的传热装置。对该装置的运行和有效性进行了分析，并显示出热管的几个传热特性，包括高导热性和快速热响应时间。根据NPCHP的初始填充比，该装置显示为作为过填充的两相回路热虹吸或单相回路热虹吸操作。NPCHP表现出循环热虹吸的特征，可以分类为这样。
A Non-phase change heat pipe (NPCHP) with no wick was proposed recently as a new heat pipe which is not dependent on a wick or phase change at steady state operation and where heat transfer is driven by the pressure response to a heat input, rather than phase change. The NPCHP is not a new device as suggested but is a loop thermosyphon with very high fill ratio. This effort focuses on proving the NPCHP, as an overfilled loop thermosyphon, is an effective heat transfer device through experiments and numerical simulations. An analysis of the operation and effectiveness of the device is performed, and it is shown to exhibit several heat transfer characteristics of a heat pipe, including high thermal conductivity and a fast thermal response time. Depending upon the initial fill ratio of the NPCHP, the device is shown to either operate as an overfilled two-phase loop thermosyphon or a single-phase loop thermosyphon. The NPCHP exhibits characteristics of a loop thermosyphon and can be classified as such.