Performance of CaCl2-reactor for application in ammonia-salt based thermal transformers

This paper shows the performance of a reactor containing approximately 1 kg of CaCl2 placed in a 1 kg ENG matrix. Its performance in terms of adsorption/desorption rates, heat input and output as a function of temperature and pressure gradients and under typical heat pump and transformer conditions is shown and compared with model calculations. The parameters used in the model calculations have been obtained from literature or independently measured using apparatus such as Rubotherm microbalance and a large temperature jump setup. The results show that material properties measured on small samples do not easily yield a proper description of the sorbent performance on kW-scale reactors. Some suggestions are made to improve future model description and experiments.