Effect of porosity and the inlet heat transfer fluid temperature variation on the performance of cool thermal energy storage system |
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Authors: | M Cheralathan R Velraj S Renganarayanan |
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Institution: | (1) School of Mechanical Engineering, S. R. M. Institute of Science and Technology (Deemed University), Chennai, 603 203, India;(2) Institute for Energy Studies, Anna University, Chennai, 600 025, India |
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Abstract: | This paper discusses the results of numerical and experimental study of an encapsulated cool thermal energy storage system.
The storage system is a cylindrical storage tank filled with phase change material encapsulated in spherical container, placed
in a refrigeration loop. A simulation program was developed to evaluate the temperature histories of the heat transfer fluid
and the phase change material at any axial location during the charging period. The present analysis aims at studying the
influence of the inlet heat transfer fluid temperature and porosity on system performance. An experimental setup was designed
and constructed to conduct the experiments. The results of the model were validated by comparison with experimental results
of temperature profiles for different inlet heat transfer fluid temperatures and porosity. The results are in good agreement
with the experimental results. The results reported are much useful for designing cool thermal energy storage systems. |
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