Armazenadores de calor latente de geometria anular com aletas

AUTOR(ES)
DATA DE PUBLICAÇÃO

1996

RESUMO

Research activities in thermal energy storage in the form of latent heat in storage systems with and without fins are well advanced and intense. The present research project aims to investigate the thermal behavior and the effects of the geometrical and operational parameters on the performance of the latent heat storage units of cylindrical annular model is based upon a two-dimensional formulation of the heat conduction with phase change where the inlet temperatures of the two working fluids are maintained constants. The numerical solution is realized using the finite volume control method and the ADI scheme. The coupling of the above problem with the two working fluids, is obtained by energy balance on the respective fluid elements and the phase change elements, and consequently the fluid bulk temperature is determined in terms of the time and space. The solidified/melt mass ftaction, the effectiveness and the NTU are analyzed in terms of the variation in the geometry number of fins, the annular spacing, the Biot and Stefan number, the temperature and the Reynolds numbers of the working fluids

ASSUNTO(S)

calor - armazenamento analise termica

ACESSO AO ARTIGO

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