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Experimental investigations of porous materials in high temperature thermal energy storage systems
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Wu, Z. G. and Zhao, Changying (2011) Experimental investigations of porous materials in high temperature thermal energy storage systems. Solar Energy, Vol.85 (No.7). pp. 1371-1380. doi:10.1016/j.solener.2011.03.021 ISSN 0038-092X.
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Official URL: http://dx.doi.org/10.1016/j.solener.2011.03.021
Abstract
In this paper, the feasibility of using porous materials such as metal foams and expanded graphite to enhance the heat transfer capability of PCMs in high temperature thermal energy storage system is experimentally investigated. Experimental results showed that the heat transfer rate can be enhanced through addition of the porous materials by 2.5 times compared to that of pure NaNO3 in the heating process from 250–300 °C. However the heat transfer rate could be reduced by half in the liquid region since the natural convection can be severely suppressed by the porous structures. In an attempt to further reveal the natural convection effect in PCMs embedded in porous materials, two heating methods (boundary conditions) are examined. Finally the issue of corrosion process is briefly discussed.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics T Technology > TA Engineering (General). Civil engineering (General) T Technology > TJ Mechanical engineering and machinery |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||
Library of Congress Subject Headings (LCSH): | Phase transformations (Statistical physics) | ||||
Journal or Publication Title: | Solar Energy | ||||
Publisher: | Elsevier Ltd. | ||||
ISSN: | 0038-092X | ||||
Official Date: | July 2011 | ||||
Dates: |
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Volume: | Vol.85 | ||||
Number: | No.7 | ||||
Number of Pages: | 10 | ||||
Page Range: | pp. 1371-1380 | ||||
DOI: | 10.1016/j.solener.2011.03.021 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Funder: | Engineering and Physical Sciences Research Council (EPSRC) | ||||
Grant number: | EP/F061439/1 (EPSRC) |
Data sourced from Thomson Reuters' Web of Knowledge
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