Commenced in January 2007
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Numerical Investigation on Latent Heat Storage Unit of Different Configurations
Abstract:The storage of thermal energy as a latent heat of phase change material (PCM) has created considerable interest among researchers in recent times. Here, an attempt is made to carry out numerical investigations to analyze the performance of latent heat storage units (LHSU) employing phase change material. The mathematical model developed is based on an enthalpy formulation. Freezing time of PCM packed in three different shaped containers viz. rectangular, cylindrical and cylindrical shell is compared. The model is validated with the results available in the literature. Results show that for the same mass of PCM and surface area of heat transfer, cylindrical shell container takes the least time for freezing the PCM and this geometric effect is more pronounced with an increase in the thickness of the shell than that of length of the shell.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1080814Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 2068
 Abhat A. Low temperature latent heat thermal energy storage: Heat storage materials, Solar Energy, 30 (1983) 313-332.
 Hasnain. S.M. Review on sustainable thermal energy storage technologies, Part 1: heat storage materials and techniques, Energy Conversion and Management, 39 (1998) 1127-1138.
 Zalba B, Marin J M, Cabeza L F, and Mehling H. Review on thermal energy storage with phase change: materials, heat transfer analysis and applications, Applied Thermal Engineering, 23 (2003) 251-283.
 Mahkamav K and Murat K. Solar energy storage using phase change material, Renewable and Sustainable Energy 11 (2007) 1913-1965.
 Voller V., and Cross M. Accurate solutions of moving boundary problems using the enthalpy method, International Journal Heat Mass Transfer, 24 (1981) 545-556.
 Voller V., and Cross M. Estimating the solidification/melting times of cylindrically symmetric regions. International Journal Heat Transfer, 24 (1981)1457-1462.
 Lacroix M. Numerical simulation of a shell and tube latent heat thermal energy storage unit, Solar Energy, 50(4) (1993) 357-367.
 Esen M., Durmus A. and Geomeric, Design of solar aided latent heat store depending on various parameters and phase change materials, Solar Energy, 62(1) (1998) 19-28.
 Ismail K. A. R., Alves C. L. F., and Modesto M. S. Numerical and experimental study on the solidification of PCM around a vertical axially finned isothermal cylinder, Applied Thermal Engineering, 21(1) (2001) 53-57.
 Zivkovic B. and Fujii I. An analysis of isothermal phase change of phase change material within rectangular and cylindrical containers, Solar Energy, 70 (2001) 51-61.
 Adine H. A., and Qarnia H. E. Numerical analysis of the thermal behavious of a shell and tube heat storage unit using phase change materials, Applied Mathematical Modelling, 33 (2009) 2132-2144.
 Saman W, Bruno F and Halawa E. thermal performance of PCM thermal storage unit for a roof integrated solar heating system, Solar Energy, (2005) 341-349.