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Journal of Enhanced Heat Transfer
Facteur d'impact: 1.406 Facteur d'impact sur 5 ans: 1.075 SJR: 0.287 SNIP: 0.653 CiteScore™: 1.2

ISSN Imprimer: 1065-5131
ISSN En ligne: 1563-5074

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Journal of Enhanced Heat Transfer

DOI: 10.1615/JEnhHeatTransf.v2.i1-2.50
pages 33-41

Thermal Estimation of Matrix Heat Exchangers

Yimin Xuan
School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing 210094, China; School of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Wilfried Roetzel
Institut für Thermodynamik, Universität der Bundeswehr Hamburg, D-22039 Hamburg, Germany

RÉSUMÉ

This paper characterizes perforated plates or wire screens consisting matrix heat exchangers (MHE) by porous media and treats them as heterogeneous systems because of the fact that apparent heat conductivities of matrices perpendicular to and parallel to the flow direction are different from each other. This paper presents two-phase and one-phase two-dimensional models to describe stationary heat transfer processes in MHE. Based on the one-phase model, an analytical solution is developed for the temperature distribution in MHE with parallel flow arrangement.


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