PCM choosing and classification according to their characteristics for their application for thermal energy storage systems

Abstract

Thermal energy storage has been linked to Architecture since ancient times, in large massive buildings through sensible heat. Latent heat storage —through phase change materials (PCMs) is another way of thermal storage, which has aroused great interest in recent decades. These materials, maintain constant temperature during the phase change while the material stores or releases energy. Their energy density storage is higher than any other. Its use is linked to renewable energy to adjust the supply periods to demand. In this paper we study the different phase change materials, classifying them and analyzing their physical, chemical, mechanical, thermal properties; availability, pricing, durability, and their compatibility with other materials. Their uses and most interesting applications are discussed.

Keywords

• pcm
• latent heat
• thermal energy
• enthalpy
• renewable energy