IEA SHC Task 42 / ECES Annex 29 WG A1: Engineering and Processing of PCMs, TCMs and Sorption Materials

An overview on the recent results on the engineering and characterization of sorption materials, PCMs and TCMs investigated in the working group WG A1 "Engineering and processing of TES materials" of IEA SHC Task 42 / ECES Annex 29 (Task 4229) entitled "Compact Thermal Energy Storage" is presented

Discharge performance of blended salt in matrix materials for low enthalpy thermochemical storage

A novel study is undertaken on low cost thermochemical storage which utilizes temperatures which are compatible with low grade renewable energy capture. The discharge performance of thermochemical storage matrix materials is assessed using a custom developed experimental apparatus which provides a means of comparing materials under scaled reactor conditions. The basic performance of three salts (CaCl2, LiNO3 and MgSO4) was investigated and their subsequent performance using layering and blending techniques established that the performance could be increased by up to 24% through the correct choice of mixing technique. Layering the CaCl2 on the LiNO3 provided the most efficient thermal release strategy and yielded a thermal storage density of 0.2 GJ/m3. The research also uniquely highlights the important finding that incorrect mixing of the materials can lead to a significant reduction in efficiency with freely mixed CaCl2 and LiNO3 possessing a storage capacity of less than 0.01 GJ/m3 as a result of chemical interactions between the deliquesced materials in close proximity. The paper has impact for the design and control of thermochemical storage systems as it clearly identifies how performance can be improved or degraded by the choice and the structuring of the materials

Thermal decomposition kinetic of salt hydrates for heat storage systems

International audienc

Modeling Approach of Thermal Decomposition of Salt-Hydrates for Heat Storage Systems

International audienc

Einsatz eines Schwebstoffilters zur weitergehenden Entstaubung einer Verbrennungsanlage fuer kobalthaltige Abfaelle Abschlussbericht

Because cobalt dust is classified as carcinogenic when inhaled, cobalt oxide containing dust generated by waste incineration units has to be, as far as possible, removed from the flue gases. Trials have been made to find out whether high efficiency submicron particulate airfilters are suitable to obtain the required filtration effect. These trials have shown that the filtration effect is very good, durability of the filters, however, is not satisfactoryIn einer Rueckstandsverbrennungsanlage entstehende kobaltoxidhaltige Staeube sind aus den Rauchgasen soweit wie moeglich zu entfernen, da Kobaltstaub in atembarer Form als krebserzeugend eingestuft ist. Es wurde untersucht, ob Schwebstoffilter geeignet sind, die geforderte Abscheidewirkung dauerhaft zu erbringen. Als Ergebnis wurde festgestellt, dass die Trennwirkung sehr gut ist, die Haltbarkeit des Filters jedoch noch nicht befriedigtAvailable from TIB Hannover: RO 2148(1105) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Umwelt, Naturschutz und Reaktorsicherheit, Bonn (Germany)DEGerman