Characteristics of vertical mantle heat exchangers for solar water heaters

L. J. Shah*, G. L. Morrison, M. Behnia

*Corresponding author for this work

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

The flow structure in vertical mantle heat exchangers was investigated using a full-scale tank designed to facilitate flow visualisation. The flow structure and velocities in the mantle were measured using a particle Image Velocimetry (PIV) system. A CFD simulation model of vertical mantle heat exchangers was also developed for detailed evaluation of the heat flux distribution over the mantle surface. Both the experimental and simulation results indicate that distribution of the flow around the mantle gap is governed by buoyancy driven recirculation in the mantle. The operation of the mantle was evaluated for both high and low temperature input flows. (C) 2000 Elsevier Science Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)79-91
Number of pages13
JournalSolar Energy
Volume67
Issue number1-3
DOIs
Publication statusPublished - Jul 1999
Externally publishedYes

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