Adsorption refrigeration systems are characterized by a lower coefficient of performance than the compressor type device or even absorption. The aim of the study was to determine which external parameter has the greatest impact on the efficiency of the adsorption device. As a result of experimental studies there was found that this is not the temperature of the feed but particularly the temperature of external air. For this reason, it is recommended that the adsorption device should cooperate with evaporative spray coolers,  not with popular drycoolers. This solution will increase annul efficiency of adsorption unit by about 30-40% and significantly reduce the costs of cold generation.

DOI: https://doi.org/10.3846/enviro.2017.255