Increasing energy efficiency of heat supply systems of facilities using non-traditional sources
The paper presents the results of designing the heat supply system of an object -heating, ventilation, air conditioning - using heat from non-traditional sources. For these purposes justification of choice of heat carrier, heat-exchange apparatus has been made, coefficient of heat energy conversion of heat pump in a case with utilization of secondary resources in the form of return of waste ventilation air heat into the ground and without its return has been calculated. The analysis of the received and presented in article results has shown, that the most effective heat carrier is 30 % ethylene glycol solution, metal coaxial heat exchanger and an operating mode of system with recycling of secondary power resources in the form of heat of the exhaust ventilating air with its return in a ground.