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Proceedings of Symposium on Energy Engineering in the 21<sup>st</sup> Century (SEE2000) Volume I-IV

ISSN:
1-56700-132-7 (Print)

STUDY ON IMPROVED PERFORMANCE OF PLATE HEAT EXCHANGER WITH PACKED BEADS AND MINI-LONGITUDINAL CHANNELS ON PLATE SURFACE

Bu-Xuan Wang
Laboratory of Phase Change and Interfacial Transport Phenomena, Department of Thermal Engineering, Tsinghua University, Beijing 100084, China

J. H. Du
Department of Thermal Engineering, Tsinghua University, Beijing, China

Z.J. Zhang
Thermal Engineering Department Tsinghua University, Beijing 100084, China

Abstract

Experiments were conducted on the fluid flow and heat transfer for packed glass beads between plates with longitudinally mini-channeled surface. The measured results were reported for different configuration combinations. Remarkable improvement in performance of pressure drop and heat transfer can be obtained. Optimum aspect ratio-channeled configuration would exist, which was found to be varied with Reynolds number.