Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/147011
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dc.contributor.authorLi, Chuanchangen_US
dc.contributor.authorZhang, Boen_US
dc.contributor.authorXie, Baoshanen_US
dc.contributor.authorZhao, Xinboen_US
dc.contributor.authorChen, Jianen_US
dc.contributor.authorChen, Zhongshengen_US
dc.contributor.authorLong, Yien_US
dc.date.accessioned2021-03-17T06:56:42Z-
dc.date.available2021-03-17T06:56:42Z-
dc.date.issued2019-
dc.identifier.citationLi, C., Zhang, B., Xie, B., Zhao, X., Chen, J., Chen, Z. & Long, Y. (2019). Stearic acid/expanded graphite as a composite phase change thermal energy storage material for tankless solar water heater. Sustainable Cities and Society, 44, 458-464. https://dx.doi.org/10.1016/j.scs.2018.10.041en_US
dc.identifier.issn2210-6707en_US
dc.identifier.urihttps://hdl.handle.net/10356/147011-
dc.description.abstractTankless solar water heater (TSWH) integrated phase change materials (PCMs) is a promising field due to its low cost, low heat loss, and compact structure. To obtain a composite PCMs that suitable for tankless solar water heater application, the expanded graphite (EG) in different mass fraction (2 wt.%, 6 wt.%, and 10 wt.%) were added to stearic acid (SA) via melting impregnation. The thermophysical properties including phase change temperature, latent heat, and thermal conductivity of the SA/EG composites were characterized by DSC and thermal conductivity tests. The melting and freezing heats of SA/EG6 composite were 163.5 J g−1 and 167.3 J g−1, respectively. The thermal conductivity of SA/EG6 was as high as 9.6 times that of pure SA. Meanwhile, the infrared images suggested the addition of EG enhance the heat release capability of composites as well as improve the uniformity of heat transfer process of SA/EG6. At last, a developed compact solar water heater was used to estimate the thermal performance of as-prepared composites. The experimental results shown that the melting time of SA/EG6 was shorten 63.3% compared with that of the SA and the heat releasing rate of SA/EG6 was the highest, suggesting the SA/EG6 composites can be applied in TSWH system.en_US
dc.language.isoenen_US
dc.relation.ispartofSustainable Cities and Societyen_US
dc.rights© 2018 Elsevier Ltd. All rights reserved.en_US
dc.subjectEngineering::Materialsen_US
dc.titleStearic acid/expanded graphite as a composite phase change thermal energy storage material for tankless solar water heateren_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Materials Science and Engineeringen_US
dc.identifier.doi10.1016/j.scs.2018.10.041-
dc.identifier.scopus2-s2.0-85055885438-
dc.identifier.volume44en_US
dc.identifier.spage458en_US
dc.identifier.epage464en_US
dc.subject.keywordsStearic Aciden_US
dc.subject.keywordsExpanded Graphiteen_US
dc.description.acknowledgementThis work was supported by the National Natural Science Foundation of China (51504041, 51874047); the Changsha City Fund for Distinguished and Innovative Young Scholars; the Fund for University Young Core Instructors of Hunan Province; the Natural Science Foundation of Hunan Province (2016JJ3009); the Key Research and Development Program of Jiangxi Province (20171BBH80021); and the Hunan Province 2011 Collaborative Innovation Center of Clean Energy and Smart Grid.en_US
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