Title
Thermochemical Heat Storage: From Reaction Storage Density to System Storage Density
Author
de Jong, A.J.
van Vliet, L.D.
Hoegaerts, C.L.G.
Roelands, C.P.M.
Cuypers, R.
Contributor
Yesilata, B. (editor)
Publication year
2016
Abstract
Long-term and compact storage of solar energy is crucial for the eventual transition to a 100% renewable energy economy. For this, thermochemical materials provide a promising solution. The compactness of a long-term storage system is determined by the thermochemical reaction, operating conditions, and system implementation with the necessary additional system components. Within the MERITS project a thermochemical storage (TCS) system is being demonstrated using evacuated, closed TCS modules containing Na2S as active material. The present modules are expected to reach a heat storage density of 0.18GJ/m3. In this paper, we discuss the different factors leading to this storage density, and argue that by further optimization of the selected reaction and architecture, the result may be improved to approximately 1GJ/m3, which would be a practical value for seasonal heat storage in buildings.
Subject
Fluid & Solid Mechanics
PID - Process & Instrumentation Development
TS - Technical Sciences
High Tech Systems & Materials
Chemistry
Industrial Innovation
Heat storage density
Hygroscopic salts
Thermochemical materials
Energy storage
Solar energy
Solar heating
Hygroscopic salts
Operating condition
Seasonal heat storages
Storage densities
System implementation
Thermo-chemical heat storages
Thermochemical reactions
Thermochemical storage
To reference this document use:
http://resolver.tudelft.nl/uuid:16604244-fbd6-4f10-8fd1-d41fd5098cb8
TNO identifier
575361
Publisher
Elsevier, Amsterdam
ISSN
1876-6102
Source
4th International Conference on Solar Heating and Cooling for Buildings and Industry, SHC 2015, 2-4 December 2015, 91, 128-137
Series
Energy Procedia
Document type
conference paper