Latent heat thermal storage systems (LHTS) utilize their latent heat capacity to dissipate high heat fluxes while maintaining quasi-isothermal conditions. Phase change materials (PCMs) absorb a large amount of energy during their phase transformation from solid to liquid, maintaining quasi-isothermal conditions. However, they are often beset with low thermal conductivities which necessitate the use of a thermal conductivity enhancer (TCE) as it is impossible to design a device that can completely avoid sensible heat in the premelting or postmelting phase. In this study, the heat transfer performance of LHTS with cross plate fins as a TCE is numerically investigated for different values of fin thicknesses and fin numbers along the length and breadth. A hybrid artificial neural network coupled genetic algorithm (ANN–GA) is then used to obtain the optimized dimensions for the composite heat sink with cross plate fins as TCE for a fixed volume and a specific heat flux input. The numerically optimized configuration is finally validated with in-house experiments.
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Conjugate Heat Transfer in Latent Heat Thermal Storage System With Cross Plate Fins
Rajesh Alayil,
Rajesh Alayil
Heat Transfer and Thermal Power Laboratory,
Department of Mechanical Engineering,
e-mail: rajeshalayiliitm@gmail.com
Department of Mechanical Engineering,
Indian Institute of Technology Madras
,Chennai 600036
, India
e-mail: rajeshalayiliitm@gmail.com
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C. Balaji
C. Balaji
1
Professor
Heat Transfer and Thermal Power Laboratory,
Department of Mechanical Engineering,
e-mail: balaji@iitm.ac.in
Heat Transfer and Thermal Power Laboratory,
Department of Mechanical Engineering,
Indian Institute of Technology Madras
,Chennai 600036
, India
e-mail: balaji@iitm.ac.in
1Corresponding author.
Search for other works by this author on:
Rajesh Alayil
Heat Transfer and Thermal Power Laboratory,
Department of Mechanical Engineering,
e-mail: rajeshalayiliitm@gmail.com
Department of Mechanical Engineering,
Indian Institute of Technology Madras
,Chennai 600036
, India
e-mail: rajeshalayiliitm@gmail.com
C. Balaji
Professor
Heat Transfer and Thermal Power Laboratory,
Department of Mechanical Engineering,
e-mail: balaji@iitm.ac.in
Heat Transfer and Thermal Power Laboratory,
Department of Mechanical Engineering,
Indian Institute of Technology Madras
,Chennai 600036
, India
e-mail: balaji@iitm.ac.in
1Corresponding author.
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received May 25, 2014; final manuscript received April 24, 2015; published online June 2, 2015. Assoc. Editor: Jim A. Liburdy.
J. Heat Transfer. Oct 2015, 137(10): 102302 (9 pages)
Published Online: October 1, 2015
Article history
Received:
May 25, 2014
Revision Received:
April 24, 2015
Online:
June 2, 2015
Citation
Alayil, R., and Balaji, C. (October 1, 2015). "Conjugate Heat Transfer in Latent Heat Thermal Storage System With Cross Plate Fins." ASME. J. Heat Transfer. October 2015; 137(10): 102302. https://doi.org/10.1115/1.4030496
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