Experimental and numerical evaluation of solar water heaters with vertical mantle heat exchangers

Yen Chean Soo Too*, Graham Morrison, Masud Behnia

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

Abstract

The performance of narrow gap vertical mantle heat exchangers with a two-pass arrangement used for pumpedcirculation solar water heaters is reported. A onedimensional heat transfer model of this mantle system has been implemented in TRNSYS based on the mean mantle heat transfer coefficient obtained from the measurements and a standard natural convection correlation for the tank side heat transfer coefficient. The simulated performance showed that a direct coupled system delivered approximately 8 % more energy compared to a mantle system for standard domestic hot water demand in Sydney Australia. However, this reduction in system performance can be outweighed by the benefit of freeze protection provided by incorporating a collector-loop heat exchanger in solar water heating systems.

Original languageEnglish
Title of host publicationProceedings of the Solar World Congress 2005: Bringing Water to the World, Including Proceedings of 34th ASES Annual Conference and Proceedings of 30th National Passive Solar Conference
EditorsD. Y. Goswami
Place of PublicationBoulder, CO
PublisherAmerican Solar Energy Society
Pages1492-1497
Number of pages6
Volume2
ISBN (Print)9781622762637
Publication statusPublished - 2005
Externally publishedYes
EventSolar World Congress 2005: Bringing Water to the World, Including 34th ASES Annual Conference and 30th National Passive Solar Conference - Orlando, FL, United States
Duration: 6 Aug 200512 Aug 2005

Other

OtherSolar World Congress 2005: Bringing Water to the World, Including 34th ASES Annual Conference and 30th National Passive Solar Conference
CountryUnited States
CityOrlando, FL
Period6/08/0512/08/05

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