Characterisation of a controllable loop thermosyphon for precise temperature management

Chen, Chuxiong; Cao, Jingyu; Yu, Jie; Liu, Weixin; Hu, Mingke; Wang, Qiliang; Jiao, Dongsheng; Ren, Wei; Pei, Gang

doi:10.1016/j.applthermaleng.2020.116444

Cited by 12 publications

(2 citation statements)

References 35 publications

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“…(1) The total volume of TPTL is calculated according to its size, the experimental sample is filled with pure water, and the total volume is verified by observing the mass change. (2) The volume of Npentane to be injected is calculated under the set liquid filling rate and the liquid level height that can be reached. Then, the volume is marked on the glass tube.…”

Section: Methodsmentioning

confidence: 99%

“…Two-phase loop thermosyphons (TPLTs) have numerous advantages regarding efficient heat transfer, such as high heat exchange efficiency, no requirements for additional power, and low maintenance [1] . The application of TPLTs widely covers the conventional heat transfer fields, involving the cooling of computer equipment, nuclear reactors, solar utilization, air-conditioning, energy storage [2] , and even high-speed motorized spindles [3] . A TPLT is generally a closed-loop metal tube filled with a cyclic working fluid that consists of four parts: an evaporation section, a vapor pipeline (rising pipeline), a condensation section, and a liquid pipeline (downcomer pipeline).…”

Section: Introductionmentioning

confidence: 99%

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Experimental investigation of flow characteristics in a vertical vibration two-phase loop thermosyphon

Wang

Chai

2022

THERM SCI

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In this paper, flow characteristics of a two-phase loop thermosyphon under vertical reciprocating vibration are visually investigated with N-pentane as the working fluid. The tests are performed for a heating power range of 20 W to 40 W, the filling ratio of 30 % to 70%, and a 30 m?s-2, 35 Hz vertical reciprocating vibration. The effect of vertical vibration on flow characteristics of the two-phase loop thermosyphon is investigated by comparing the obtained results with those acquired in static, thereby providing a basis for explaining the heat transfer process of two-phase loop thermosyphon under vibration. The results indicate that vertical vibration promotes the rupture of a liquid plug and the transformation of the plug flow to annular flow or wavy flow. Furthermore, the vertical vibration does not change the distribution law of liquid flow velocity in the two-phase loop thermosyphon. However, it will reduce the overheating and flow velocity in the two-phase loop thermosyphon at the start-up. With an increase in the heating power, the influence of vertical vibration on liquid flow velocity is reduced due to continuous disturbance of the working medium in the two-phase loop thermosyphon.

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Section: Methodsmentioning

confidence: 99%