Absorptionskälteprozess und Absorptionskältemaschine

An absorption refrigeration process for making available refrigeration capacity using heat (7) is presented and described. In order, in particular, to be able to make available small refrigeration capacities in a cost-effective fashion, an absorption refrigeration process is proposed in which a sorption medium (36) for absorbing and/or desorbing a refrigerant (33) is conducted under a partial vacuum through a sorption medium duct (37) of at least one phase change module in the form of an absorber (2, 30) and/or a desorber (3), in which the sorption medium (40) is conducted under a partial vacuum through a heat carrier duct (39) of the at least one phase change module in order to pick up absorption heat and/or to output desorption heat, and in which the sorption medium (40) at least partially outputs the absorption heat to a heat carrier medium in at least one heat exchanger (17, 23); and/or picks up the desorption heat at least partially from a heat carrier medium