Keyword: «integrated heating and cooling systems»

In this work, a technical and economic comparison of options for the technical design of an integrated heating and cooling system in the Yakutsk city was carried out. A qualitative and quantitative assessment of the socio-economic, modes and environmental effects of the operation of an integrated heating and cooling system was obtained. The discounted payback period was six years for the option of decentralized cooling with local installation of absorption chillers. The use of waste heat by absorption chillers in the production of cold can reduce electricity costs by up to 29% per month of total consumption and save up to 519 million rubles per year. The introduction of integrated heating and cooling technology can reduce CO2 emissions by up to 58 tons.

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.