Full Text:   <2874>

CLC number: TK51

On-line Access: 

Received: 2005-12-18

Revision Accepted: 2006-03-10

Crosschecked: 0000-00-00

Cited: 0

Clicked: 3363

Citations:  Bibtex RefMan EndNote GB/T7714

-   Go to

Article info.
1. Reference List
Open peer comments

Journal of Zhejiang University SCIENCE A 2006 Vol.7 No.8 P.1422~1430

10.1631/jzus.2006.A1422


Study on performance of a packed bed latent heat thermal energy storage unit integrated with solar water heating system


Author(s):  NALLUSAMY N., SAMPATH S., VELRAJ R.

Affiliation(s):  Department of Mechanical Engineering, Sri Venkateswara College of Engineering, Chennai 602 105, India; more

Corresponding email(s):   nalls@svce.ac.in

Key Words:  Charging, Discharging, Heat transfer fluid (HTF), Latent heat, Phase change material (PCM), Packed bed, Thermal energy storage (TES)


NALLUSAMY N., SAMPATH S., VELRAJ R.. Study on performance of a packed bed latent heat thermal energy storage unit integrated with solar water heating system[J]. Journal of Zhejiang University Science A, 2006, 7(8): 1422~1430.

@article{title="Study on performance of a packed bed latent heat thermal energy storage unit integrated with solar water heating system",
author="NALLUSAMY N., SAMPATH S., VELRAJ R.",
journal="Journal of Zhejiang University Science A",
volume="7",
number="8",
pages="1422~1430",
year="2006",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2006.A1422"
}

%0 Journal Article
%T Study on performance of a packed bed latent heat thermal energy storage unit integrated with solar water heating system
%A NALLUSAMY N.
%A SAMPATH S.
%A VELRAJ R.
%J Journal of Zhejiang University SCIENCE A
%V 7
%N 8
%P 1422~1430
%@ 1673-565X
%D 2006
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2006.A1422

TY - JOUR
T1 - Study on performance of a packed bed latent heat thermal energy storage unit integrated with solar water heating system
A1 - NALLUSAMY N.
A1 - SAMPATH S.
A1 - VELRAJ R.
J0 - Journal of Zhejiang University Science A
VL - 7
IS - 8
SP - 1422
EP - 1430
%@ 1673-565X
Y1 - 2006
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2006.A1422


Abstract: 
In thermal systems such as solar thermal and waste heat recovery systems, the available energy supply does not usually coincide in time with the process demand. Hence some form of thermal energy storage (TES) is necessary for the most effective utilization of the energy source. This study deals with the experimental evaluation of thermal performance of a packed bed latent heat TES unit integrated with solar flat plate collector. The TES unit contains paraffin as phase change material (PCM) filled in spherical capsules, which are packed in an insulated cylindrical storage tank. The water used as heat transfer fluid (HTF) to transfer heat from the solar collector to the storage tank also acts as sensible heat storage material. charging experiments were carried out at varying inlet fluid temperatures to examine the effects of porosity and HTF flow rate on the storage unit performance. The performance parameters such as instantaneous heat stored, cumulative heat stored, charging rate and system efficiency are studied. Discharging experiments were carried out by both continuous and batchwise processes to recover the stored heat, and the results are presented.

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

Reference

[1] Ananthanarayanan, V., Sahai, Y., Mobley, C.E., Rapp, R.A., 1987. Modeling of fixed bed heat storage units utilizing phase-change materials. Metallurgical Trans. B, 18:339-346.

[2] Bansal, N.K., Buddhi, D., 1992. Performance equation of a collector cum storage using phase change materials. Solar Energy, 48(3):185-194.

[3] Barba, A., Spiga, M., 2003. Discharge mode for encapsulated PCMs in storage tanks. Solar Energy, 74(2):141-148.

[4] Beasley, D.E., Ramanarayanan, C., 1989. Thermal response of a packed bed of spheres containing a phase change material. Int. J. Energy Research, 13:253-265.

[5] Bellecci, C., Conti, M., 1993. Phase change thermal storage: transient behaviour analysis of a solar receiver/storage module using the enthalpy method. Int. J. Heat Mass Transfer, 36(8):2157-2163.

[6] Chen, S.L., Yue, J.S., 1991. Thermal performance of cool storage in packed capsules for air-conditioning. Heat Recovery Systems & CHP, 11(6):551-561.

[7] Cho, K., Choi, S.H., 2000. Thermal characteristics of paraffin in a spherical capsule during freezing and melting processes. Int. J. Heat Mass Transfer, 43(17):3183-3196.

[8] Esen, M., Durmu, A., Durmu, A., 1998. Geometric design of solar-aided latent heat store depending on various parameters and phase change materials. Solar Energy, 62(1):19-28.

[9] Ettouney, H., El-Dessouky, H., Al-Ali, A., 2005. Heat transfer during phase change of paraffin wax stored in spherical shells. ASME J. Solar Energy Engg., 127(3):357-365.

[10] Fouda, A.E., Despault, G.J.G., Taylor, J.B., Capes, C.E., 1984. Solar storage systems using salt hydrate latent heat and direct contact heat exchange-II characteristics of pilot system operating with sodium sulphate solution. Solar Energy, 32(1):57-65.

[11] Ghoneim, A.A., Klein, S.A., 1989. The effect of phase-change material properties on the performance of solar air-based heating systems. Solar Energy, 42(6):441-447.

[12] He, B., Martin, V., Setterwall, F., 2004. Phase transition temperature ranges and storage density of paraffin wax phase change materials. Energy, 29(11):1785-1804.

[13] Hoogendoorn, C.J., Bart, G..C.J., 1992. Performance and modelling of latent heat stores. Solar Energy, 48(1):53-58.

[14] Ismail, K.A.R., Stuginsky, R., 1999. A parametric study on possible fixed bed models for pcm and sensible heat storage. Appl. Thermal Eng., 19(7):757-788.

[15] Ismail, K.A.R., Henriquez, J.R., 2002. Numerical and experimental study of spherical capsules packed bed latent heat storage system. Appl. Thermal Eng., 22(15):1705-1716.

[16] Mehling, H., Cabeza, L.F., Hippeli, S., Hiebler, S., 2003. PCM-module to improve hot water heat stores with stratification. Renewable Energy, 28(5):699-711.

[17] Prudhomme, M., Nguyen, T.H., Nguyen, D.L., 1989. A heat transfer analysis of solidification of slabs, cylinders and spheres. ASME J. Heat Transfer, 111:699-705.

[18] Saitoh, T., Hirose, K., 1986. High performance phase-change thermal energy storage using spherical capsules. Chemical Engg. Commun., 41:39-58.

[19] Sozen, M., Vafai, K., Kennedy, L.A., 1991. Thermal charging and discharging of sensible and latent heat storage packed beds. AIAA J. Thermophysics, 5(4):623-625.

[20] Trp, A., 2005. An experimental and numerical investigation of heat transfer during technical grade paraffin melting and solidification in a shell-and-tube latent thermal energy storage unit. Solar Energy, 79(6):648-660.

Open peer comments: Debate/Discuss/Question/Opinion

<1>

Please provide your name, email address and a comment





Journal of Zhejiang University-SCIENCE, 38 Zheda Road, Hangzhou 310027, China
Tel: +86-571-87952783; E-mail: cjzhang@zju.edu.cn
Copyright © 2000 - Journal of Zhejiang University-SCIENCE