Heat Storage


Start: January 2017
Duration: 4 years

Project manager: DTU (Denmark)

Partners: IFE, KTH (Sweden) and AMMINEX Emissions Technology (Denmark) Uppsala Universtiy and Stockholm University

To rationally design a thermochemical heat storage system, of high efficiency and long life-time, careful characterization of the spatio-temporal development of the ammonia salts micro-/macrostructure during the ammonia cycling is needed. Indeed, the ammonia cycling induces volume changes and macroporous structures within the bed of salts. For such characterization, neutrons are especially well suited. Diffraction, small angle scattering, tomography and radiography, can reveal information from the atomic scale up to the system level.

Furthermore, utilization of hydrogenated or deuterated ammonia offers ideal phase contrast for the characterization at the different length scales, the two hydrogen isotopes having very different neutron scattering cross sections.