An experimental intermittent thermochemical refrigeration system operating with barium chloride-ammonia reaction is described. The barium chloride is used as solid absorbent and ammonia as refrigerant. The equipment components and the experimental preliminary results are also presented. The temperature range of the heating fluid from 70 to 95 degrees C was established. The main results showed that the generation temperature was 53 degrees C for a condensation temperature of 23 degrees C. In the evaporation-absorption process, the evaporating temperature was between -10 and 0 degrees C. The results showed the technical feasibility to operate this refrigeration system with low cost solar flat plate collectors in remote areas. (C) 2007 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.