Abstract

The paper presents a mathematical model for the numerical calculation of the heat flow and the volumetric fraction of the liquid phase of phase change materials (PCM) in containers of thermal energy accumulators of spherical and cylindrical shape, used in air conditioning and ventilation systems. The comparison of the calculated and experimental values for n-octadecane showed good convergence of the results. When using in geometry optimization algorithms of containers and when choosing PCM, the model has an advantage due to the high speed of calculations on it.

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