Comprehensive review of the application of phase change materials in residential heating applications

The aim of this paper is providing a detailed review for the applications of phase change materials (PCMs) in residential heating. The study focuses mainly on its use in domestic water heating systems. Different studies accounting for structural characterization, research methodology, and long term performance were carefully assessed. The gaps in the literature have been highlighted and recommendations for future studies have been presented. The technical gaps urge the need for research to be directed towards enhancing PCM properties in the domestic system, novel integration of PCM within the system, and optimization of system performance based on real-time accurate weather data. The economic opportunities for such systems were presented in different locations of the world by investigating different energy efficiency measures. The work presented herein identifies potential energy management opportunities that can significantly reduce our reliance on fossil fuels. Consequently, promoting a green future and mitigating greenhouse gas emissions. It is structured to provide guidance for researchers and engineers working in inclusion of PCMs in residential heating applications. (C) 2021 THE AUTHORS. Published by Elsevier BV on behalf of Faculty of Engineering, Alexandria University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/).

Automated summary

The paper provides a detailed review of the applications of phase change materials (PCMs) in residential heating, focusing on domestic water heating systems. Various studies were assessed for structural characterization, research methodology, and long term performance, highlighting gaps in the literature and recommendations for future research. The need for enhancing PCM properties, innovative integration of PCM within the system, and optimization of system performance based on real-time accurate weather data were emphasized, along with economic opportunities in different locations worldwide.