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首页> 外文期刊>Energy Conversion & Management >Heat transfer and thermal storage performance of an open thermosyphon type thermal storage unit with tubular phase change material canisters
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Heat transfer and thermal storage performance of an open thermosyphon type thermal storage unit with tubular phase change material canisters

机译：具有管状相变材料罐的开放式热虹吸型储热单元的传热和储热性能

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摘要

A novel open thermosyphon-type thermal storage unit is presented to improve, design and performance of heat pipe type thermal storage unit. In the present study, tubular canisters filled with a solid-liquid phase change material are vertically placed in the middle of the thermal storage unit. The phase change material melts at 100 degrees C. Water is presented as the phase-change heat transfer medium of the thermal storage unit. The tubular canister is wrapped tightly with a layer of stainless steel mesh to increase the surface wettability. The heat transfer mechanism of charging/discharging is similar to that of the thermosyphon. Heat transfer between the heat resource or cold resource and the phase change material in this device occurs in the form of a cyclic phase change of the heat-transfer medium, which occurs on the surface of the copper tubes and has an extremely high heat-transfer coefficient. A series of experiments and theoretical analyses are carried out to investigate the properties of the thermal storage unit, including power distribution, start-up performance, and temperature difference between the phase change material and the surrounding vapor. The results show that the whole system has excellent heat-storage/heat-release performance. (C) 2015 Elsevier Ltd. All rights reserved.
机译：提出了一种新颖的开放式热虹吸式蓄热器，以改善热管式蓄热器的设计和性能。在本研究中，将装有固-液相变材料的管状罐垂直放置在蓄热单元的中间。相变材料在100摄氏度下熔化。水被表示为蓄热单元的相变传热介质。管状滤罐用一层不锈钢网紧密包裹，以提高表面润湿性。充放电的热传递机理与热虹吸管的相似。在该装置中，热资源或冷资源与相变材料之间的热传递以传热介质的循环相变的形式发生，该相变发生在铜管的表面上并且具有极高的传热系数。进行了一系列实验和理论分析，以研究储热单元的性能，包括功率分布，启动性能以及相变材料与周围蒸气之间的温差。结果表明，整个系统具有良好的储热/散热性能。 （C）2015 Elsevier Ltd.保留所有权利。

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