Experimental study of heat transfer and pressure drop in micro-channel based heat sinks with tip clearance

Reyes, Marcos and Arias Pérez, Juan Ramón and Velázquez, A. and Vega de Prada, José Manuel (2010). Experimental study of heat transfer and pressure drop in micro-channel based heat sinks with tip clearance. "Applied Thermal Engineering", v. 31 (n. 5); pp. 887-893. ISSN 1359-4311. https://doi.org/10.1016/j.applthermaleng.2010.11.011.

Description

Title: Experimental study of heat transfer and pressure drop in micro-channel based heat sinks with tip clearance
Author/s:
  • Reyes, Marcos
  • Arias Pérez, Juan Ramón
  • Velázquez, A.
  • Vega de Prada, José Manuel
Item Type: Article
Título de Revista/Publicación: Applied Thermal Engineering
Date: November 2010
ISSN: 1359-4311
Volume: 31
Subjects:
Freetext Keywords: Micro-heat sink; Tip clearance; Pressure drop
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 article presents an experimental study on the optimisation of micro-heat sink configurations when both thermal effects and pressure drop are accounted for. The interest of the latter is that the practical engineering viability of some of these systems also depends on the required pumping power. The working fluid was water and, according to typical power dissipation and system size requirements, the considered fluid regime was either laminar or transitional, and not fully developed from the hydrodynamics point of view. Five configurations were considered: a reference geometry (selected for comparison purposes) made up of square section micro-channels, and four alternative configurations that involved the presence of a variable tip clearance in the design. The performance of the different configurations was compared with regard to both cooling efficiency and pressure drop. Finally, we also provide some practical guidelines for the engineering design of these types of systems.

More information

Item ID: 6116
DC Identifier: http://oa.upm.es/6116/
OAI Identifier: oai:oa.upm.es:6116
DOI: 10.1016/j.applthermaleng.2010.11.011
Official URL: http://www.elsevier.com/locate/apthermeng
Deposited by: Memoria de Investigacion 2
Deposited on: 22 Feb 2011 09:23
Last Modified: 20 Apr 2016 14:44
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