Heat transfer enhancement in micro-channels caused by vortex promoters

Meis, M. and Varas, Fernando and Velázquez, A. and Vega de Prada, José Manuel (2010). Heat transfer enhancement in micro-channels caused by vortex promoters. "International Journal of Heat and Mass Transfer", v. 53 (n. 1-3); pp. 29-40. ISSN 0017-9310. https://doi.org/10.1016/j.ijheatmasstransfer.2009.10.013.

Description

Title: Heat transfer enhancement in micro-channels caused by vortex promoters
Author/s:
  • Meis, M.
  • Varas, Fernando
  • Velázquez, A.
  • Vega de Prada, José Manuel
Item Type: Article
Título de Revista/Publicación: International Journal of Heat and Mass Transfer
Date: January 2010
ISSN: 0017-9310
Volume: 53
Subjects:
Freetext Keywords: Micro-cooling systems; Vortex promoter; Micro-channel flow; Heat transfer
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Fundamentos Matemáticos de la Tecnología Aeronáutica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

This paper presents a systematic numerical study of the effects of heat transfer and pressure drop produced by vortex promoters of various shapes in a 2D, laminar flow in a micro-channel. The liquid is assumed to be water, with temperature dependent viscosity and thermal conductivity. It is intended to obtain useful design criteria of micro-cooling systems, taking into account that practical solutions should be both thermally efficient and not expensive in terms of the pumping power. Three reference cross sections, namely circular/elliptical, rectangular, and triangular, at various aspect ratios are considered. The effect of the blockage ratio, the Reynolds number, and the relative position and orientation of the obstacle are also studied. Some design guidelines based on two figures of merit (related to thermal efficiency and pressure drop, respectively), which could be used in an engineering environment are provided.

More information

Item ID: 6111
DC Identifier: http://oa.upm.es/6111/
OAI Identifier: oai:oa.upm.es:6111
DOI: 10.1016/j.ijheatmasstransfer.2009.10.013
Official URL: http://www.elsevier.com/locate/ijhmt
Deposited by: Memoria de Investigacion 2
Deposited on: 21 Feb 2011 11:30
Last Modified: 20 Apr 2016 14:44
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