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Numerical and experimental investigations of electronic evaporative cooling performance with a coiled channel

journal contribution
posted on 2023-05-18, 15:29 authored by Yin, X, Cao, F, Jin, L, Hu, B, Shu, P, Xiaolin WangXiaolin Wang
Numerical and experimental investigations on two-phase evaporative cooling performance for a moving electronic unit with high heat flux have been performed in a coiled channel heat exchanger. Based on the VOF model, the phase distribution of a 3D coiled channel was investigated. It was found that the main vapor streamline flowed through the inner side of one bend channel to the next one, which increased the contact frequency of the vapor and the liquid, improving the cooling performance. Moreover, the results were also verified by the experiment. The cooling effect was directly affected by heat concentration in the bend channel. An optimized method was implemented for this phenomenon. Decreasing the effective flow area and increasing the local velocity could establish a new force balance for the vapor and liquid, eliminating the heat concentration and improving the overall cooling performance.

History

Publication title

Applied Thermal Engineering

Volume

94

Pagination

256-265

ISSN

1359-4311

Department/School

School of Engineering

Publisher

Pergamon Press

Place of publication

United Kingdom

Rights statement

Copyright 2015 Elsevier Ltd

Repository Status

  • Restricted

Socio-economic Objectives

Energy efficiency not elsewhere classified

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