Numerical analysis of water melting and solidification in the interior of tubes
Document title: Numerical analysis of water melting and solidification in the interior of tubes
Journal: Journal of the Brazilian Society of Mechanical Sciences and Engineering
Database: PERIÓDICA
System number: 000312289
ISSN: 1678-5878
Authors: 1
2
Institutions: 1Universidade Regional Integrada do Alto Uruguai e das Missoes, Santo Angelo, Rio Grande do Sul. Brasil
2Universidade Federal do Rio Grande do Sul, Departamento de Engenharia Mecanica, Porto Alegre, Rio Grande do Sul. Brasil
Year:
Season: Abr-Jun
Volumen: 27
Number: 2
Pages: 119-131
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental
English abstract Latent energy storage systems find applications in many engineering fields, including industrial refrigeration plants, air conditioning installations, recovery of heat in industrial processes, etc. To tackle the design of such systems, it is necessary to have correlations to account for the heat transfer during the melting and solidification of the phase change material (PCM). This work describes and analyzes the results obtained from the numerical simulation of pure water melting and solidification in the interior of tubes, which are typically present in ice banks of air conditioning systems. The shown results consider natural convection, accounting for the inversion in the water density. In the melting process, the considered initial conditions followed the classical Stefan and Neumann approach. The presented simulation results include the evolution of the phase change interface, and of the temperature, density and streamlines fields. Correlations for the Nusselt number and for the melted material volume as functions of time have been proposed
Disciplines: Ingeniería
Keyword: Ingeniería hidráulica,
Ingeniería industrial,
Agua,
Transferencia de calor,
Cambio de fase,
Solidificación,
Fusión
Keyword: Engineering,
Hydraulic engineering,
Industrial engineering,
Solidification,
Phase change,
Melting,
Water,
Heat transfer
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