Influence of Outside Temperature on the Operation of the Adsorption Chiller

Abstract

Abstract. Adsorption refrigeration systems are characterized by a lower coefficient of performance than the compressor type device or even absorption, but can utilize waste heat at lower temperature. 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, instead of with popular dry coolers. This solution will increase annual efficiency of adsorption unit approx. by 25% and significantly reduce the costs of cold generation.

A qualitative assessment of integrated active cooling systems: A review with a focus on system flexibility and climate resilience

“…The efficiency and capacity of thermal energy-driven systems are highly dependent on the outdoor temperature more than VC systems. Therefore, they are not strongly resilient to heatwaves, while for sorption systems, a previous study has shown that using a spray-evaporative heat exchanger can reduce the effect of the outdoor temperature on the sorption system capacity [108].…”