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Thermal property characterization of a low melting-temperature ternary nitrate salt mixture for thermal energy storage systems
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Zhao, Changying and Wu, Z. G. (2011) Thermal property characterization of a low melting-temperature ternary nitrate salt mixture for thermal energy storage systems. Solar Energy Materials and Solar Cells, Vol.95 (No.12). pp. 3341-3346. doi:10.1016/j.solmat.2011.07.029 ISSN 0927-0248.
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Official URL: http://dx.doi.org/10.1016/j.solmat.2011.07.029
Abstract
Molten salts have better thermal properties than synthetic mineral oil, and hence they can be directly used as heat transfer fluids in solar power plants, but in practice their direct applications as heat transfer fluids are constrained due to their high freezing temperature points. In this paper, a class of ternary nitrate salt mixtures consisting of 50-80 wt% KNO(3), 0-25 wt% LiNO(3) and 10-45 wt% ca(NO(3))(2) were processed and tested. Experimental results indicated that some mixtures within this range exhibited excellent thermal properties, such as a low melting point ( < 100 degrees C), robust reliability, high-temperature stability (upto 500 degrees C) and a low viscosity (e.g., < 5 cP at 190 degrees C). Apart from these desirable thermo-physical properties, the manufacturing cost of these novel inorganic salts HTFs (Heat Transfer Fluids) is considerably lower than those of the existing commercial heat transfer fluids (HTFs). (C) 2011 Elsevier B.V. All rights reserved.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||
Journal or Publication Title: | Solar Energy Materials and Solar Cells | ||||
Publisher: | Elsevier Science BV | ||||
ISSN: | 0927-0248 | ||||
Official Date: | 2011 | ||||
Dates: |
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Volume: | Vol.95 | ||||
Number: | No.12 | ||||
Page Range: | pp. 3341-3346 | ||||
DOI: | 10.1016/j.solmat.2011.07.029 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Funder: | National Natural Science Foundation of China , UK Engineering and Physical Sciences Research Council (EPSRC) , Shanghai "Dong Fang Scholar Professorship" scheme | ||||
Grant number: | 51176110 51071184 (National Natural Science Foundation of China ) ; EP/F061439/1 EP/F061439/1 (EPSRC); ZXDF020003 (Shanghai "Dong Fang Scholar Professorship" scheme)) |
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