Elena Palomo del Barrio (CIC energiGUNE), Jean-Luc Dauvergne (CIC energiGUNE), Ángel Serrano Casero (CIC energiGUNE), Stefania Doppiu (CIC energiGUNE)
To date, thermal energy storage (TES) systems have traditionally opted for solid-liquid PCMs because of their high latent heat. However, these materials require encapsulation which leads to a loss of energy storage density, reduced versatility and higher cost.
The authors of the present invention have found that the above-mentioned limitations of solid-liquid PCM leakage and energy density can be surprisingly solved by selecting a non-polymeric solid-solid PCM as the enclosing/supporting material. In addition to the enhanced heat capacity, the transition temperature of the composite PCM of the invention can be easily customized over a wide range of temperatures while can be prepared by very simple and cost-effective procedures. Beside the above advantages, the present invention allows the provision of TES within a poorly covered range of temperatures by current PCMs which make them especially attractive for TES applications at medium temperatures in industrial heat processes, where there is currently only a few PCM alternatives.
Yasmina Portilla Nieto (CIC energiGUNE), Abdelali Zaki (CIC energiGUNE), Estibaliz Aranzabe Basterrechea (Fundación Tekniker), Marta Hernáiz (Fundación Tekniker) and Abdessamad Faik (CIC energiGUNE)
Michel Armand (CIC energiGUNE), Teófilo Rojo (CIC energiGUNE), Gurpreet Singh (CIC energiGUNE), Laida Otaegui (CIC energiGUNE), Frederic Aguesse (CIC energiGUNE) and Lucienne Buannic (CIC energiGUNE)