THERMAL SCIENCE

International Scientific Journal

Authors of this Paper

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Yong Chen

,

Yanbo Huang

,

Fajing Li

,

Mu Chai

EXPERIMENTAL INVESTIGATION ON THE EFFECT OF VERTICAL VIBRATION ON HEAT TRANSFER PERFORMANCE OF TWO-PHASE LOOP THERMOSYPHONS WITH DIFFERENT DIAMETERS

ABSTRACT
The two-phase loop thermosyphon (TPLT) is generally a technique used in conjunc¬tion with a fan when cooling an electronic chip to enhance the cooling effect. In this context, the TPLT heat transfer efficiency is directly affected by the vibration caused by the associated fan. In this paper, the heat transfer performances of TPLT with diameters of 4 mm, 6 mm, and 8 mm were experimentally investigated under a heat¬ing power capacity ranging from 40-400 W, a filling ratio of 40-70%, and a 30 m/s2 35 Hz vertical reciprocating vibration. The heat transfer performance of the TPLT is compared to the case of operation under the same working conditions in a static state. The influence of the vibration state caused by the fan rotation on the heat transfer performance of TPLT with different diameters is analyzed and discussed. The obtained results indicated that vertical vibration does not change the trend of TPLT heat transfer performance with the corresponding heating power capacity un¬der each pipe diameter. On the other hand, it was found that the vibration enhances or inhibits the heat transfer characteristics of TPLT, affected by the pipe diameter, the heating power capacity, and the liquid filling ratio.
KEYWORDS
two-phase loop thermosiphon, heat transfer performance, vibration
PAPER SUBMITTED: 2022-05-30
PAPER REVISED: 2022-10-05
PAPER ACCEPTED: 2022-10-25
PUBLISHED ONLINE: 2022-12-17
DOI REFERENCE: https://doi.org/10.2298/TSCI220530179C
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2023, VOLUME 27, ISSUE Issue 2, PAGES [1587 - 1596]
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Experimental investigation on the effect of vertical vibration on heat transfer performance of two-phase loop thermosyphons with different diameters

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence