Latent heat storage uses the process of melting or crystallization of a material to store heat. The materials selected for this purpose evidence a much higher storage capacity within a small, defined temperature range compared to conventional storage materials storing sensible heat. Therefore, applications that function within a small temperature range are especially suited for latent heat storage. Many applications exist in buildings, for example as cold storage for air-conditioning, whereas other applications are found in industry or in the mobility sector.
We develop and characterize latent heat materials and complete storage systems for a wide variety of applications. The temperature range of our work varies from low temperatures applications which require minimum temperatures to be maintained during transport through to cold storage applications for buildings and industry and up to high temperature applications for industrial processes demanding heat storage of ca. 200°C.
Our research covers a wide variety of topics. We not only develop new materials, for example phase change liquids and high temperature materials, but also develop, dimension and optimize complete storage systems. In addition we perform monitoring of storage systems and energy evaluations for specific applications. We also characterize and test phase change materials. We are an accredited test institute within the PCM-RAL Gütegemeinschaft.