Application of Heat Pumps in a Centralized heat Supply as the Direction of the Development of District Heating Cogeneration

Abstract

The article is devoted to the use of a heat pump for improvement of district heating with the cogeneration station. At the present time improving the efficiency of cogeneration station is one of the priority goals in the development of district heating. One of the most perspective options for improving the efficiency of cogeneration station is to reduce the temperature of the heat network schedule, with the greatest effect can be achieved by applying individual systems with heat pumps for the thermal energy consumers as final heaters. However, existing solutions require significant capital expenditures. Thus, for the implementations of existing projects the technology is required, allowing to organize the gradual installation heat pumps in heating systems with low cost. As a starting stage of heat pump introduction, the compensation of hot water supply load in the non-heating period is offered. For this purpose the authors developed a universal system for the compensation load of hot water supply, which is a cost-effective and relatively affordable way to initial exploitation of heat pump in a district heating. The system is based on a block containing a heat pump with circulation pumps. The system allows using heating appliances as a heat exchanger to capture excess heat building premises. The proposed technology allows to effectively compensating for the hot water load with minimal capital costs and the simplicity of design.