Keyword: «district cooling»

In this paper, it is proposed to introduce technology of an integrated heat and cold supply system in Yakutsk city. Classic option of district cooling system (DCS) with use of absorption chillers is considered. The integrated energy system work of Yakutsk for 3 months of 2019 summer is modeled. Simulation results showed there was enough waste heat to operate absorption chillers for entire time of the DCS operation, even for maximum possible cold load of the city. The calculations showed possibility reducing the city's electricity consumption up to 20.0%. Primary economic indicators showed that the project would be economically successful if there was sufficient demand for cooling.

The direction of Russian energy towards decarbonization and reduction of CO2 emissions creates the basis for the development of alternative technologies for generating energy resources. In turn, rising global average temperatures contribute to increased cooling degree days and increased air conditioning demand. High heat load in winter, gas turbine units at power plants in Yakutsk, a significant amount of waste heat in summer and the need for cooling are indicators of the efficiency of trigeneration based on absorption chillers. In view of these reasons, the technology of an integrated heating and cooling system is proposed for implementation in regions of the North with cold winter and hot summer. A tool has been developed for the development of this technology: a map-scheme of pipeline systems for district cooling system in the city of Yakutsk with reference to the area. The lengths of district cooling pipelines and cold loads of consumers were calculated. The information can be used in technical and economic calculations and specialized software packages for hydraulic calculations.