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Numerical study on thermal energy storage tube filled by metal foam with gradient porosities
Institute of the Building Environment and Sustainability Technology, School of Human Settlements and Civil Engineering, Xi'An Jiaotong University, Xi'an, 710049, China.
Institute of the Building Environment and Sustainability Technology, School of Human Settlements and Civil Engineering, Xi'An Jiaotong University, Xi'an, 710049, China.
Institute of the Building Environment and Sustainability Technology, School of Human Settlements and Civil Engineering, Xi'An Jiaotong University, Xi'an, 710049, China.
Institute of the Building Environment and Sustainability Technology, School of Human Settlements and Civil Engineering, Xi'An Jiaotong University, Xi'an, 710049, China.
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2019 (English)In: IOP Conference Series: Earth and Environmental Science, Institute of Physics Publishing , 2019, Vol. 268, no 1, article id 012163Conference paper, Published paper (Refereed)
Abstract [en]

Thermal energy storage has attracted more and more attentions due mainly to its ability of peak load shifting. Shell-and-tube configuration is a typical heat exchanger for thermal energy storage. To enhance phase change heat transfer, open-cell metal foam has been involved in various kinds of shell-and-tube heat exchangers. To further improve the overall thermal performance of a shell-and-tube heat exchanger, metal foams with gradient porosities were inserted into the shell side. Positive and negative gradients in porosity were studied for comparison. Numerical model was developed based on the finite volume method and three sets of numerical simulations were performed. Transient melting front and melting fraction were illustrated for comparison. Results demonstrated that the positive gradient in porosity outperformed the other two kinds of configurations, resulting in a 17.5% reduction in full melting time. 

Place, publisher, year, edition, pages
Institute of Physics Publishing , 2019. Vol. 268, no 1, article id 012163
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:mdh:diva-44912DOI: 10.1088/1755-1315/268/1/012163Scopus ID: 2-s2.0-85068690453OAI: oai:DiVA.org:mdh-44912DiVA, id: diva2:1337900
Conference
International Conference on Sustainable Energy and Green Technology 2018, SEGT 2018; Hotel DoubleTree by Hilton Kuala LumpurKuala Lumpur; Malaysia
Note

Export Date: 18 July 2019; Conference Paper; Correspondence Address: Yang, X.; Institute of the Building Environment and Sustainability Technology, School of Human Settlements and Civil Engineering, Xi'An Jiaotong UniversityChina; email: xiaohuyang@xjtu.edu.cn

Available from: 2019-07-18 Created: 2019-07-18 Last updated: 2019-07-18Bibliographically approved

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Li, Hailong

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