The description and the functioning of two different prototypes of adsorptive solar refrigeration systems are presented. One of them is based on the adsorption of the methanol on activated carbon and its adsorber is coupled to a static solar collector. Its purpose is the ice production and it was designed to produce up to 10 kg of ice/day m2 in the Northeastern region of Brazil. In the present system, the adsorber is covered with transparent insulation material (TIM), the geometric configuration of the main components is multi-tubular and a water condenser is used. The other prototype uses the zeolite-water pair and a CPC collector for the regenerating process. It has a cold chamber with a capacity of 44 liters aimed for food and vaccine conservation in rural areas of Peru. This system uses a mobile adsorber, which is regenerated out of the refrigeration cycle and no condenser is applied, because the solar regeneration is made in the ambient air.