Lahcene Bellahcene* | Mohamed Teggar | Sidi M.E.A. Bekkouche | Zohir Younsi | Ali Cheknane
OPEN ACCESS
In this work, and in order to improve the thermal execution in building equipment, a numerical simulation of unsteady state heat transfer in three configurations of cavity section is presented to study phase change process of PCM (Phase Change Materials). These configurations are: square, cylindrical and elliptical cavities, which are tested for different thickness. Hence, the present work out to determinate the effect of the configuration and PCM thickness of the cavity section on the thermal behavior during the melting/solidification process. Investigations are based the enthalpy method, using CFD (computational fluid dynamics) code to track the melting/solidification process. The comparison between the numerical results and the experimental data of literature shows a good agreement. The results found that the elliptical cavity section with 10 mm thickness of PCM improve significantly the performance the building equipment.
numerical simulation, three configurations, unsteady state, PCM, heat transfer
[1] Ganatra Y, Ruiz J, Howarter JA, Marconnet A. (2018). Experimental investigation of phase change material for thermal management of handheld devices. Inter.J. Ther. Sciens 129: 358-364.
[2] Shukla A, Buddhi D, Sawhney RL. (2009). Solar water heaters with phase change material thermal energy storage medium: A review. Renew. Sust. Energ. Rev 13(8): 2119-2125.
[3] Abhat A. (1983). Low temperature latent heat thermal energy storage: heat storage materials. Solar Energy 30: 313-332.
[4] Agyenim F, Hewitt N, Eames P, Smyth M. (2010). A review of materials, heat transfer and phase change problem formulation for latent heat thermal energy storage systems (LHTESS). Renew. Sust. Energ. Rev 14: 615-628.
[5] Zalba B, Marin J.M, Cabeza L.F, Mehling H. (2003). Review on thermal energy storage with phase change: materials, heat transfer analysis and applications. Appl. Therm. Eng 23: 251-283.
[6] Mills A, Farid MM, Selman JR, Al-Hallaj S. (2006). Thermal conductivity enhancement of phase change materials using a graphite matrix. Appl. Therm. Eng 26: 1652-1661.
[7] De Gracia A, Oro E, Farid MM, Cabeza LF. (2011). Thermal analysis of including phase change material in a domestic hot water cylinder. Appl. Therm. Eng 31: 3938-3945.
[8] Kenisarin M, Mahkamov K. (2007). Solar energy storage using phase change materials. Renew. Sust. Energ. Rev 11: 19130-1965.
[9] Azenha M, de Sousa H, Samagaio A. (2012). Theral enhancement of plastering mortars with Phase Change Materials: Experimental and numerical approach. Ener. Build 49: 16-27.
[10] Silva T, Vicente R, Soares N, Ferreira V. (2012). Experimental testing and numerical modelling of masonry wall solution with PCM incorporation: A passive construction solution. Ener. Build 49: 235-245.
[11] Lachheb M, Younsi Z, Naji H, Karkri M, Ben Nasrallah S. (2017). Thermal behavior of a hybrid PCM/plaster: A numerical and experimental investigation. Appl. Therm. Eng 111: 49-59.
[12] Zalba B, Marin JM, Cabeza LF, Mehling H. (2003). Review on thermal energy storage with phase change: materials, heat transfer analysis and applications. Appl. Therm. Eng. 23: 251-283.
[13] Pasupathy A, Athanasius L, Velraj R, Seeniraj RV. (2008). Experimental investigation andnumerical simulation analysis on the thermal performance of a building roof incorporating phase change material (PCM) for thermal management. Appl. Therm. Eng 28: 556–565.
[14] Khillarkar DB, Gong ZX, Mujumdar AS. (2000). Melting of a phase change material in concentric horizontal annuli of arbitrary cross-section. Appl. Therm. Eng. 20: 893-912.
[15] Vyshak NR, Jilani G. (2007). Numerical analysis of latent heat thermal energy storage system. Ener. Conv. Man 48: 2161-2168.