Discharge of thermal storage tanks via immersed baffled heat exchangers: Numerical model of flow and temperature fields

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

A model of a thermal storage tank in which stored energy is extracted via an immersed heat exchanger is presented and used to predict transient temperature and velocity fields in tanks with and without baffles. The heat exchanger is modeled as a porous medium within the storage fluid. A simple cylindrical baffle that creates an annular space in which a coiled tube heat exchanger is positioned provides a modest increase in the rate of energy extraction compared to a tank with no baffle. The improved discharge rate is attributed to an increase in the flow speed across the heat exchanger. A baffle with greater hydraulic resistance slows the flow and reduces performance.

Original languageEnglish (US)
Title of host publicationProceedings of the Energy Sustainability Conference 2007
Pages711-720
Number of pages10
DOIs
StatePublished - Dec 24 2007
Event2007 Energy Sustainability Conference - Long Beach, CA, United States
Duration: Jun 27 2007Jun 30 2007

Publication series

NameProceedings of the Energy Sustainability Conference 2007

Other

Other2007 Energy Sustainability Conference
CountryUnited States
CityLong Beach, CA
Period6/27/076/30/07

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    Su, Y., & Davidson, J. H. (2007). Discharge of thermal storage tanks via immersed baffled heat exchangers: Numerical model of flow and temperature fields. In Proceedings of the Energy Sustainability Conference 2007 (pp. 711-720). (Proceedings of the Energy Sustainability Conference 2007). https://doi.org/10.1115/ES2007-36131