JUSTIFICATION OF HEAT-TECHNICAL PARAMETERS OF HYBRID HEAT AND HOT WATER

Аннотация

In the article, a heating scheme of a hybrid heat and hot water supply system based on vacuum solar collectors and heat pump devices for country houses and model houses is proposed. The operating procedure of the hybrid heat and hot water supply system is presented. The hybrid heat and hot water supply system is connected to a vacuum solar collector and a heat pump device connected to an underground heat source (sewage well) through a tank accumulator. Heat-technical calculation of tank-accumulator and heat pump device is given. The energy consumption of the heat pump device used in the hybrid heat supply system is 2.5 kW, and the heat and hot water supply system produces 22, 65 kW of heat energy for the tank accumulator, which is 20÷25 more than boiler devices and electric heating devices in traditional heat and hot water supply systems. It is based on the fact that it has up to 25 times energy efficiency. Taking into account the meteorological climate parameters of the Kashkadarya region, the heating season is 135 days, in the hybrid autonomous heat supply system of the proposed rural houses and model houses, it is possible to save 73,386 kW of electricity or use 30÷40 tons of conventional fuel due to the use of only a 2.5 kW heat pump device. It is scientifically proven that savings can be made.