This paper presents experimental investigations of charging (solidification) and discharging (internal/external melting) periods of an ice-on-coil type latent heat thermal energy storage system. Experimental investigations are performed for various constant heat loads and inlet temperatures with several flow rates of the heat transfer fluid. In experiments, variations of the solid/liquid interfaces around the tubes are monitored with the aid of 15 interface measurement cards for both solidification and melting periods. Energy variations obtained from the measurement cards are validated by conservation of energy, and the mean difference is obtained as 5%. The parametric results indicated that the inlet temperature and the flow rate of the secondary coolant are significant both on the charging and discharging capability of the system. It is also introduced that, for the current experimental conditions, external melting mode can supply relatively lower outlet temperatures for a longer period in comparison with the internal melting mode.
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e-mail: mehmet.ezan@deu.edu.tr
e-mail: aytunc.erek@deu.edu.tr
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Melting And Solidification
Solidification and Melting Periods of an Ice-on-Coil Latent Heat Thermal Energy Storage System
Mehmet Akif Ezan,
Mehmet Akif Ezan
Department of Mechanical Engineering, Dokuz Eylul University, Izmir,
e-mail: mehmet.ezan@deu.edu.tr
Turkey
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Aytunc Erek
Aytunc Erek
Department of Mechanical Engineering, Dokuz Eylul University, Izmir,
e-mail: aytunc.erek@deu.edu.tr
Turkey
Search for other works by this author on:
Mehmet Akif Ezan
Department of Mechanical Engineering, Dokuz Eylul University, Izmir,
Turkey
e-mail: mehmet.ezan@deu.edu.tr
Aytunc Erek
Department of Mechanical Engineering, Dokuz Eylul University, Izmir,
Turkey
e-mail: aytunc.erek@deu.edu.tr
J. Heat Transfer. Jun 2012, 134(6): 062301 (10 pages)
Published Online: May 2, 2012
Article history
Received:
November 30, 2010
Revised:
November 3, 2011
Published:
April 30, 2012
Online:
May 2, 2012
Citation
Akif Ezan, M., and Erek, A. (May 2, 2012). "Solidification and Melting Periods of an Ice-on-Coil Latent Heat Thermal Energy Storage System." ASME. J. Heat Transfer. June 2012; 134(6): 062301. https://doi.org/10.1115/1.4005747
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