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Received June 24, 2009
Accepted February 1, 2010
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Heat transfer characteristics of high temperature molten salt for storage of thermal energy
Department of Chemical Engineering, Sungkyunkwan University, Suwon 440-746, Korea 1Department of Mechanical Engineering, Inha University, Incheon 402-751, Korea 2Korea Institute of Energy Research, Daejeon 305-343, Korea
Korean Journal of Chemical Engineering, September 2010, 27(5), 1452-1457(6), 10.1007/s11814-010-0260-1
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Abstract
The heat transfer characteristics of molten salt for the storage of thermal energy were investigated. The temperature profiles and heat transfer coefficients during the storage and discharge stages were obtained with steam as the heat transfer fluid. Two kinds of inorganic salt were employed as the storage medium and two types of heat exchanger were tested in order to find the effect of heat exchanger configuration on the heat storage. The effects of the steam flow rates, the flow direction of steam in the storage tank, the temperature of the heat transfer fluid and the initial temperature of the discharge tank on the heat transfer were obtained and analyzed.
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References
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Mao A, Kim KM, Han GY, Seo TB, Kang YH, J. Korean Solar Energy Society., 27, 63 (2007)
Choi JC, Kim SD, Han GY, Korean J. Chem. Eng., 12(2), 258 (1995)
Farrington RB, Bingham CE, Testing and analysis of immersed heat exchangers, SERI Report No. TR-253-2866, National Renewable Energy Laboratory, Golden, CO (1986)
Farrington RB, Test results of immersed coil heat exchangers and liquid storage tanks used in the packaged systems program, SERI Report No. TR-254-2841, National Renewable Energy Laboratory, Golden, CO (1986)
Feiereisen TJ, Klein SA, Duffie JA, Beckman WA, Heat transfer from immersed coils, Proceedings of ASME Winter Annual Meeting, Phoenix, AZ, Paper No. 82-WA/Sol-18 (1982)
Hewitt GF, Shires GL, Bott TR, Process Heat Transfer I., CRC Press, 113 (1994)
Cornwell K, J. Physics D: Appl. Phys., 4, 441 (1971)
Tufeu R, Petitet JP, Denielou L, Le Neindre B, International J. Thermophysics., 6, 315 (1985)
Nunes VMB, Lourenco MJV, Santos FJV, Nieto de Castro CA, J. Chem. Eng. Data., 48, 446 (2003)
