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Numerical Evaluation on a Direct-contact Thermal Energy Storage System
Sun Yat-sen University, Guangzhou, China.
Guangzhou University, Guangzhou, China.
Sun Yat-sen University, Guangzhou, China.
Mälardalen University, School of Business, Society and Engineering, Future Energy Center.ORCID iD: 0000-0002-6279-4446
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2017 (English)In: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 105, p. 4389-4394Article in journal (Refereed) Published
Abstract [en]

This study evaluates numerically various configurations of direct-contact PCM thermal energy storage devices, regarding inlet location, inlet flow directions, pre-heating and inlet tubes with straight fins. The direct-contact conjugate heat transfer between the heat transfer fluid (HTF) and PCM during melting process, is solved numerically by enthalpy-porosity formulation in the computational fluid dynamic approach. The results indicate that pre-heating could form channels in a short time, which improve heat transfer rate for charging stages. To further enhance heat transfer performance, inlet tubes embedded with straight fins. Compared to pre-heating method, the electric power can be saved. Each design are evaluated with respect to their heat transfer performance vis-à-vis heat storage ratio.

Place, publisher, year, edition, pages
2017. Vol. 105, p. 4389-4394
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:mdh:diva-37563DOI: 10.1016/j.egypro.2017.03.932ISI: 000404967904076Scopus ID: 2-s2.0-85020749040OAI: oai:DiVA.org:mdh-37563DiVA, id: diva2:1169145
Conference
8th International Conference on Applied Energy, ICAE 2016, 8 October 2016 through 11 October 2016
Available from: 2017-12-22 Created: 2017-12-22 Last updated: 2018-07-25Bibliographically approved

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Li, HailongYan, Jinyue

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CiteExportLink to record
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Citation style
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