Thermoacoustics and related oscillatory heat and fluid flows in micro heat exchangers.
Fiche publication
Date publication
août 2005
Auteurs
Membres identifiés du Cancéropôle Est :
Dr BAILLY Yannick
Tous les auteurs :
Nika P, Bailly Y, Guermeur F
Lien Pubmed
Résumé
Classical linear thermoacoustic theory is applied to compact micro heat exchangers and the validity of such calculus applied to micro scale is discussed. Expressions for the radial profiles and average values of the fluid axial velocity and temperature are demonstrated, formulations for first order friction and heat transfer coefficients of oscillating flows are deduced. It is shown how aerodynamic and thermal performances of a micro heat exchanger in pulsed flow regime can be characterized with three factors: a thermal characteristic time, an aerodynamic matrix of transfer and a thermal efficiency. The model proposed is devoted to design the micro heat exchangers of micro refrigerators dedicated to the cooling of electronic components. (c) 2005 Elsevier Ltd. All rights reserved.
Référence
Int J Heat Mass Transf. 2005 Aug;48(18):3773-92.