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Abstract <p>For latent heat thermal energy storage systems, the comprehensive performance evaluation of phase change materials (PCMs) is very important task in the selection of the most suitable PCM from among multiple alternative PCMs. It is one of the typical multi criteria decision making (MCDM) problems. Some previous works applied various MCDM methods to the given PCM selection problem based on the experience and usage easiness. The results obtained from different MCDMs may differ with one another, and it is unknown which is the best suitable MCDM. This work proposed a new hybrid MCDM approach to evaluate final comprehensive performance of the PCMs. It is based on final comprehensive performance index (CPI), which is the priority weighted mean of the CPIs obtained from multiple MCDMs. This work applied the proposed approach to evaluate the comprehensive performance of 9 alternative PCMs for solar domestic hot water system using 6 MCDMs. As the result, the comprehensive performance ranking of the PCMs was <i>n</i>-eicosane &gt; <i>n</i>-octadecane &gt; <i>n</i>-nonadecane &gt; RT 60 &gt; RT 30 &gt; calcium chloride hexa-hydrate &gt; <i>n</i>-docosane &gt; p116 &gt; stearic acid. It could be actively applied to not only the PCMs but also various materials comprehensive performance evaluation ones arising in practice.</p>

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A New Approach to Evaluate Final Comprehensive Performance of Phase Change Materials by Multiple Multi Criteria Decision Making Methods

  • 期刊论文

  • 发表日期：

    2026年3月1日

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  • Chol-Ryong Pak,
  • Won-Chol Yang,
  • Chol-Min Jong

摘要

Abstract

For latent heat thermal energy storage systems, the comprehensive performance evaluation of phase change materials (PCMs) is very important task in the selection of the most suitable PCM from among multiple alternative PCMs. It is one of the typical multi criteria decision making (MCDM) problems. Some previous works applied various MCDM methods to the given PCM selection problem based on the experience and usage easiness. The results obtained from different MCDMs may differ with one another, and it is unknown which is the best suitable MCDM. This work proposed a new hybrid MCDM approach to evaluate final comprehensive performance of the PCMs. It is based on final comprehensive performance index (CPI), which is the priority weighted mean of the CPIs obtained from multiple MCDMs. This work applied the proposed approach to evaluate the comprehensive performance of 9 alternative PCMs for solar domestic hot water system using 6 MCDMs. As the result, the comprehensive performance ranking of the PCMs was n-eicosane > n-octadecane > n-nonadecane > RT 60 > RT 30 > calcium chloride hexa-hydrate > n-docosane > p116 > stearic acid. It could be actively applied to not only the PCMs but also various materials comprehensive performance evaluation ones arising in practice.