Methods for Developing Integrated Heating and Cooling Systems in the Far North

The article proposes methods for developing integrated heating and cooling systems (IHCS) in the Far North to improve the efficiency of combined cooling, heat and power systems and to reduce harmful emissions. The IHCS technology may be relevant in the Far North regions with cold winters down to minus 65°C and hot summers up to plus 39°C. In such regions, combined heat and power plants based on gas turbine units are mainly built to provide winter heat loads, which leads to the emergence of a significant amount of waste heat in the summer due to the inefficient use of the heat of fuel combustion. Waste heat from thermal power plants can be used as cheap energy for the operation of absorption chillers for district cooling of consumers as part of the IHCS. The solution to the problem of developing such systems in the Far North requires the formation of a cooling load scenario taking into account local conditions. For the developed cooling load scenarios, a variant of the cold supply technology with the best technical and economic parameters is selected, taking into account the fulfillment of technical conditions and restrictions. The results of applying the methods to solve the problem of developing the IHCS of Yakutsk showed a reduction in the cooling price to 39% relative to electric air conditioners, an increase in the coefficient of use of fuel heat in the summer months to 55% and a reduction in CO emissions to 69 thousand tons per year.