Experimental Study of an Air-PCM Heat Exchanger: Melting in a Cylindrical Container


This paper presents experimental results of an air-PCM heat exchanger, with an in-line arrangement of cylindrical containers. The objective is to highlight the physical phenomena occurring in a single container during the phase change. Temperature and airflow measures were carried out. These values were used to find the heat exchanges on the container. The experimental heat values were compared and validated with the theoretical heat stored obtained from the material properties. An only conduction 1D radial model is proposed to describe the melting front in the container.

Keywords: phase change materials, thermal storage unit, cylinder, latent heat, radial conduction.

[1] Ortega, M.D.L.A., Nadeau, J.-P., Bruneau, D., Sébastian, P., Sommier, A., Lopez, J. (2016). “Design and optimization of PCM-air heat exchangers”, Proceedings of Virtual Concept Workshop on Major Trends in Product Design, Bordeaux, France.

[2] Agyenim, F., Hewitt, N., Eames, P., and Smyth, M. L., (2010). “A review of materials, heat transfer and phase change problem formulation for latent heat thermal energy storage systems (LHTESS)”. Renewable and Sustainable Energy Reviews, Vol. 14, No. 2, pp 615-628.

[3] Rouault, F. (2014). “Air-cooling integrated system in building using phase change material”, Ph.D. thesis, Ecole Nationale Supérieure des Arts et Métiers, Bordeaux, France.

[4] Farid, M., Atsushi, K., (1989). “Thermal Performance of a Heat Storage Module using PCM’s with different melting temperatures: Mathematical Modeling”. Transactions of the ASME, Vol. 111, pp 152-157.

[5] Katsman, L., Dubovsky, V., Ziskind, G. and Letan, R., (2007). “Experimental investigation of solid-liquid phase change in cylindrical geometry”, ASME-JSME Thermal Engineering Summer Heat Transfer Conference, HT2007-32354.

[6] Alexiades, V. and Solomon, A. (1993). Mathematical Modeling of Melting and Freezing Processes, Hemisphere Publishing Corporation, USA.

[7] Kahn, W.A., Culham, J.R., and Yovanovish, M.M., (2006). “Convection heat transfer from tube banks in crossflow: Analytical approach”. International Journal of Heat and Mass Transfer, Vol. 49, pp 4831-4838.