METHOD FOR GENERATION OF THERMAL ENERGY IN SYSTEM OF MUNICIPAL HEAT SUPPLY

摘要

The invention relates to a method for generation of thermal energy in system of municipal heat supply, with use of natural gas as fuel. The method includes burning of fuel in heat engine with combined cycle to obtain mechanical of electric energy, heat exchange of exhaust gases of heat engine in exhaust-heat boiler to obtain heat carrier for heat networks and discharge of cooled exhaust gases of the engine to atmosphere. According to the method, before discharge exhaust gases are subjected to additional heat exchange to obtain heat carrier that is afterwards supplied to evaporator circuit of heat pump where one simultaneously supplies heat carrier from additional outer sources of heat for following transformation of heat flow obtained to heat networks. At that the actuating of heat pump is performed due to whole energy produced by heat engine. Amount of thermal energy that is taken from outer sources is determined from relation claimed.