Thermal stability of organic binary PCMs for energy storage

Abstract Phase change materials have found wide applications in recent decades in different fields due to their good thermal performance in energy systems. These fields include green building envelope, industry thermal energy storage, battery thermal management, power peak regulation, smart thermal fibers, and bio-medical, etc. These applications are mainly limited by their phase change temperatures and latent heat values, which makes topics around characteristic improvement for binary organic phase change materials very hot. Thus, the thermal stability study on organic binary phase change materials used in thermal energy storage applications is fundamental and meaningful. In this study, an experimental investigation on thermal stability of three types of organic binary PCMs was conducted, which are very frequently-used in building services and industry waste energy recovery. As concluded, in view of phase change temperature and heat of fusion, Capric acid & Myristic acid has the best thermal stability and reliability performance among the mentioned three composite materials. This study makes contributions to phase change materials choosing and system life-span design optimization.