Numerical Simulation of Two Phase Change Materials Melting Process

Autor: Qiang Sheng, Yu Ming Xing, Bo Bo Zhang
Rok vydání: 2014
Předmět:
Zdroj: Advanced Materials Research. :94-100
ISSN: 1662-8985
DOI: 10.4028/www.scientific.net/amr.1049-1050.94
Popis: Phase change thermal control technology has gained increasing focus as an emerging technology for the thermal control of spacecraft. This literature focused on melting process inside a latent heat energy storage filled with phase change material (PCM) by numerical simulation. A matrix-based enthalpy porosity theory in a three-dimensional finite volume discretization is simulated. The temperature distribution during the melting process of PCM Cerrolow-136 and CH3COONa·3H2O is obtained, based on which the thermal control function and energy storage capacity is compared. The results show that Cerrolow-136 has better performance. In different states of phase change, the temperature distribution of Cerrolow-136 is fairly uniform. Thermal control face's temperature of Cerrolow-136 is closer to phase transition temperature. In the same heat flux of 3000 W/m2, The whole process of thermal control temperature getting to 80°C for Cerrolow-136 is longer. Cerrolow-136, for its excellent characteristics, has potentially broad application in the fields of latent heat energy storage and space vehicle electronics.
Databáze: OpenAIRE