Investigation of the enhancement effect of heat transfer using micro channel

Xia, Liang and Chan, Yue (2015) Investigation of the enhancement effect of heat transfer using micro channel. Energy Procedia, 75 . pp. 912-918. ISSN 1876-6102

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Abstract

This paper reports an investigation of the enhanced heat transfer effect in micro sized channels. In particular, a simulation model has been established using computational fluid dynamics (CFD) platform, i.e., Fluent to investigate such micro effect. Here, hot fluid flow is squeezed into the micro channel and the heat is gradually transferred into the cold surface boundaries, i.e., top and bottom surfaces of the channel having rectangular cross-sections. The area of inlet is varied to investigate and identify the enhanced heat absorption arising from the size effect and it is found that heat transfer rate per unit effective heat transfer area is greater if the inlet area becomes smaller. Lower pressure drop can also be deduced if smaller radii channels are considered. Least but not last, a new design of heat exchanger is proposed based on these extra micro-effects.

Item Type: Article
Keywords: micro channel heat transfer; heat transfer enhancement; reduction in pressure loss; micro channel heat exchanger
Schools/Departments: University of Nottingham Ningbo China > Faculty of Science and Engineering > Department of Architecture and Built Environment
University of Nottingham Ningbo China > Faculty of Science and Engineering > School of Mathematical Sciences
Identification Number: 10.1016/j.egypro.2015.07.234
Depositing User: LIN, Zhiren
Date Deposited: 16 Oct 2017 14:00
Last Modified: 18 Oct 2017 17:39
URI: http://eprints.nottingham.ac.uk/id/eprint/47277

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