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Journal of Zhejiang University SCIENCE A 2006 Vol.7 No.11 P.1886~1895

10.1631/jzus.2006.A1886


Heat transfer and parametric studies of an encapsulated phase change material based cool thermal energy storage system


Author(s):  CHERALATHAN M., VELRAJ R., RENGANARAYANAN S.

Affiliation(s):  School of Mechanical Engineering, S.R.M. Engineering College, SRM University, Kattankulathur, Chennai 603203, Tamilnadu, India; more

Corresponding email(s):   cheralathanm@yahoo.co.in

Key Words:  Cool thermal energy storage (CTES), Energy storage, Freezing, Phase change materials (PCMs), Heat transfer analysis, Refrigeration


CHERALATHAN M., VELRAJ R., RENGANARAYANAN S.. Heat transfer and parametric studies of an encapsulated phase change material based cool thermal energy storage system[J]. Journal of Zhejiang University Science A, 2006, 7(11): 1886~1895.

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author="CHERALATHAN M., VELRAJ R., RENGANARAYANAN S.",
journal="Journal of Zhejiang University Science A",
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pages="1886~1895",
year="2006",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2006.A1886"
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%T Heat transfer and parametric studies of an encapsulated phase change material based cool thermal energy storage system
%A CHERALATHAN M.
%A VELRAJ R.
%A RENGANARAYANAN S.
%J Journal of Zhejiang University SCIENCE A
%V 7
%N 11
%P 1886~1895
%@ 1673-565X
%D 2006
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2006.A1886

TY - JOUR
T1 - Heat transfer and parametric studies of an encapsulated phase change material based cool thermal energy storage system
A1 - CHERALATHAN M.
A1 - VELRAJ R.
A1 - RENGANARAYANAN S.
J0 - Journal of Zhejiang University Science A
VL - 7
IS - 11
SP - 1886
EP - 1895
%@ 1673-565X
Y1 - 2006
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2006.A1886


Abstract: 
This work investigates the transient behaviour of a phase change material based energy storage (CTES)%29&ck%5B%5D=abstract&ck%5B%5D=keyword'>cool thermal energy storage (CTES) system comprised of a cylindrical storage tank filled with encapsulated phase change materials (PCMs) in spherical container integrated with an ethylene glycol chiller plant. A simulation program was developed to evaluate the temperature histories of the heat transfer fluid (HTF) and the phase change material at any axial location during the charging period. The results of the model were validated by comparison with experimental results of temperature profiles of HTF and PCM. The model was also used to investigate the effect of porosity, Stanton number, Stefan number and Peclet number on CTES system performance. The results showed that increase in porosity contributes to a higher rate of energy storage. However, for a given geometry and heat transfer coefficient, the mass of PCM charged in the unit decreases as the increase in porosity. The St number as well as the Ste number is also influential in the performance of the unit. The model is a convenient and more suitable method to determine the heat transfer characteristics of CTES system. The results reported are much useful for designing CTES system.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

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