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Experimental and numerical investigation of thermal energy storage with a finned tube

2005; Wiley; Volume: 29; Issue: 4 Linguagem: Inglês

10.1002/er.1057

1099-114X

Aytun� Erek, Zafer lken, Mehmet Ali Acar,

Heat Transfer and Optimization

International Journal of Energy ResearchVolume 29, Issue 4 p. 283-301 Research Article Experimental and numerical investigation of thermal energy storage with a finned tube Aytunç Erek, Corresponding Author Aytunç Erek [email protected] Department of Mechanical Engineering, Dokuz Eylül University, Bornova, 35100, İzmir, TurkeyDepartment of Mechanical Engineering, Dokuz Eylül University, Bornova, 35100, İzmir, TurkeySearch for more papers by this authorZafer İlken, Zafer İlken Department of Mechanical Engineering, İzmir Institute of Technology, Urla, 35430, İzmir, TurkeySearch for more papers by this authorMehmet Ali Acar, Mehmet Ali Acar Department of Mechanical Engineering, Dokuz Eylül University, Bornova, 35100, İzmir, TurkeySearch for more papers by this author Aytunç Erek, Corresponding Author Aytunç Erek [email protected] Department of Mechanical Engineering, Dokuz Eylül University, Bornova, 35100, İzmir, TurkeyDepartment of Mechanical Engineering, Dokuz Eylül University, Bornova, 35100, İzmir, TurkeySearch for more papers by this authorZafer İlken, Zafer İlken Department of Mechanical Engineering, İzmir Institute of Technology, Urla, 35430, İzmir, TurkeySearch for more papers by this authorMehmet Ali Acar, Mehmet Ali Acar Department of Mechanical Engineering, Dokuz Eylül University, Bornova, 35100, İzmir, TurkeySearch for more papers by this author First published: 24 February 2005 https://doi.org/10.1002/er.1057Citations: 126AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Abstract A latent heat thermal energy storage system using a phase change material (PCM) is an efficient way of storing or releasing a large amount of heat during melting or solidification. It has been determined that the shell-and-tube type heat exchanger is the most promising device as a latent heat system that requires high efficiency for a minimum volume. In this type of heat exchanger, the PCM fills the annular shell space around the finned tube while the heat transfer fluid flows within the tube. One of the methods used for increasing the rate of energy storage is to increase the heat transfer surface area by employing finned surfaces. In this study, energy storage by phase change around a radially finned tube is investigated numerically and experimentally. The solution of the system consists of the solving governing equations for the heat transfer fluid (HTF), pipe wall and phase change material. Numerical simulations are performed to investigate the effect of several fin parameters (fin spacing and fin diameter) and flow parameter (Re number and inlet temperature of HTF) and compare with experimental results. The effect of each variable on energy storage and amount of solidification are presented graphically. Copyright © 2005 John Wiley & Sons, Ltd. REFERENCES Bathelt AG, Viskanta R. 1981. Heat transfer and interface motion during melting and solidification around a finned horizontal sink/source. Journal of Heat Transfer 103: 720– 726. Bellecci C, Conti M. 1993. Phase change thermal storage: transient behaviour analysis of a solar receiver/ storage module using the enthalpy method. International Journal of Heat Mass Transfer 36: 2157– 2163. Cao Y, Faghri A. 1990. A numerical analysis of phase-change problem including natural convection. Journal of Heat Transfer (ASME) 112(3): 812– 816. Cao Y, Faghri A. 1991a. 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