Wet circuit heating system - uses cooling of IC engine and output of engine-driven generator feeding heating elements as heat source

摘要

The wet-circuit heating system has hot water lines which take up heat by heat exchange with the cooling surface of a combustion engine whose mechanical output drives a generator. The generator output feeds an electric heating element which further heats the lines. The lines may also take up heat from the engine exhaust gas. The engine air may be pre-heated by a generator cooling surface. The engine may run at constant speed. The lines may be indirectly heated by the engine cooling surface and possibly the exhaust gas, via an intermediate exchange circuit.