The method involves producing cold by a liquid absorption refrigerating system that is incorporated in a heat engine e.g. rotary or piston type volumetric heat engine, using available and/or recuperated heat. A flow of working air in the heat engine is coo...

The process involves arranging a turbo motor to burn wood gas and heat produced by a gas generator in a heating chamber (15), where motor collects heat released by combustion of wood. Working flow of compressed air is drifted into a gas/air exchanger (38) ...