Selection of Phase Change Materials for Latent Heat Storage

Abstract

This research aims to select a phase change material (PCM) which better accomplish the solution of the Thermal Energy Storage between 200–400 °C and reduce the cost of production.

The Multiple Criteria Decision Making (MCMD) methods implemented were complex proportional assessment of alternatives with gray relations (COPRAS-G), Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) and Multicriteria Optimization and Compromise Solution (VIKOR) methods. The criteria weighting was performed by compromised weighting method composed of AHP (analytic hierarchy process) and Entropy methods. The correlation of the results between three ranking methods has been developed by the Spearman’s rank correlation coefficient. The results illustrated the best and second best choice for the three MCDM were NaOH and KNO3. Furthermore it had values of Spearman’s rank correlation between the methods exceeds of 0,714.