Method for minimizing of primary energy consumption in ventilation supply system entails comparing collector temperature of solar plant and outside air temperature and preheating outside air flow if collector temperature is higher

摘要

The method is for the minimizing of the primary energy consumption in a ventilation supply system, whereby an outside air flow (25) for a heat recovery plant (1), at a temperature lying beneath the thermally designed inlet temperature of a heat exchanger (4) is preheated up to this temperature by a volume flow (17) diverted directly from the collector (14) of a fluid-operated solar plant (13). The collector temperature and outside air temperature are measured and compared, and in the event of a higher collector temperature the volume flow from the collector is directed through the heat exchanger to preheat the outside air flow.