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Effect of porous media on the heat transfer enhancement for a thermal energy storage unit
Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Inst Bldg Environm & Sustainabil Technol, Xian 710049, Shaanxi, Peoples R China..
Mälardalen University, School of Business, Society and Engineering, Future Energy Center.ORCID iD: 0000-0002-7152-1909
Mälardalen University, School of Business, Society and Engineering, Future Energy Center. Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Inst Bldg Environm & Sustainabil Technol, Xian 710049, Shaanxi, Peoples R China..ORCID iD: 0000-0002-1129-6682
Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Inst Bldg Environm & Sustainabil Technol, Xian 710049, Shaanxi, Peoples R China..
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2018 (English)In: CLEANER ENERGY FOR CLEANER CITIES / [ed] Wang, H Wang, X Yan, J Wu, J Yang, Y Li, H, ELSEVIER SCIENCE BV , 2018, p. 984-989Conference paper, Published paper (Refereed)
Abstract [en]

Thermal energy storage (TES) can effectively recover thermal energy from low-temperature waste heat and it has now been received increasing attentions in practical engineering applications. Nevertheless, the relatively low thermal conductivity of engineering available phase change materials (PCMs) greatly limits the energy efficiency of TES applications. To enhance the phase change process, open-cell metal foam with a porosity of 0.94 and pore density of 15 PPI (pore per inch) was employed to be inserted either in heat transfer fluid (HTF) or in phase change material (PCM). A two-dimensional axis-symmetric problem was numerically solved and was validated through comparing temperature history at selected points. Results demonstrated that the involvement of open-cell metal foam can effectively enhance the phase change heat transfer, greatly reducing the full melting time. By comparing the four cases (without metal foam, inserting metal foam into HTF, PCM and both domains), the case that both HTF and PCM domains were embedded with porous media can provide the best heat transfer enhancement, from which practical applications with thermal engineering may benefit.

Place, publisher, year, edition, pages
ELSEVIER SCIENCE BV , 2018. p. 984-989
Series
Energy Procedia, ISSN 1876-6102 ; 152
Keywords [en]
Phase change materials, thermal energy storage, metal foam, shell and tube exchangers, numerical simulation
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:mdh:diva-46358DOI: 10.1016/j.egypro.2018.09.104ISI: 000470975400155Scopus ID: 2-s2.0-85058212859OAI: oai:DiVA.org:mdh-46358DiVA, id: diva2:1378658
Conference
Applied Energy Symposium and Forum - Low-Carbon Cities and Urban Energy Systems (CUE), JUN 05-07, 2018, Shanghai, PEOPLES R CHINA
Available from: 2019-12-13 Created: 2019-12-13 Last updated: 2022-11-09Bibliographically approved

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Yang, YingYang, XiaohuYan, Jinyue

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