Feasibility Study On Application Of Low Carbon Heating Technology In Severe Cold Area

Urban heat supply is an essential safeguard public utility in severe cold area.However,with the continuous development of urban heating engineering,the problem of energy consumption and environmental pollution is increasingly serious.At present,China's urban heating system is still dominated by coal heating system.In the heating season,the consumption of coal resources is huge,and the CO₂,SO₂,particles and other pollutants produced by coal combustion are also discharged in large quantities.The outdoor air quality is declining,and there are many haze weather,which seriously endangers people's health and safety.Therefore,the research on the feasibility of low-carbon heating technology application in severe cold area can provide more low-carbon energy options for heating in severe cold area,and provide theoretical basis for its application feasibility.In this paper,a multi-functional building district heating model in Changchun was established.The fuzzy comprehensive evaluation method was used to evaluate the technical,environmental protection,economic,energy and social benefits of different heat source heating systems,and the advantages and disadvantages of different heat source heating systems are directly displayed by using the optimization calculation.Coal heating system,biomass heating system and solar assisted auxiliary heat source heating system were selected as the heating systems participating in the evaluation.Among them,the combination of solar energy and auxiliary heat source heating system includes solar energy&coal,solar energy&natural gas,solar energy&electricity and solar energy&biomass.Compared with the traditional coal heating system,it highlights the feasibility of low-carbon heating technology application.The conclusions are as follows:1.The ranking of technical evaluation results from superior to inferior is as follows:Coal heating system,solar energy&coal heating system,solar energy&biomass heating system,solar energy&natural gas heating system,biomass heating system,solar energy&electric heating system.2.The ranking of economic evaluation results from superior to inferior is as follows:Biomass heating system,coal heating system,solar energy&biomass heating system,solar energy&coal heating system,solar energy&natural gas heating system,solar energy&electric heating system.3.The ranking of the results of environmental protection evaluation from4.superior to inferior is as follows:Solar energy&natural gas heating system,solar energy&biomass heating system,biomass heating system,solar energy&coal heating system,coal heating system,solar energy&electric heating system.5.The ranking of energy supply evaluation results from superior to inferior is as follows:solar energy&biomass heating system,solar energy&electric heating system,biomass heating system,solar energy&natural gas heating system,solar energy&coal heating system,and coal heating system.6.The ranking of social benefit evaluation results from superior to inferior is as follows:Solar&biomass heating system,solar&electric heating system,solar&natural gas heating system,biomass heating system,solar&coal heating system,coal heating system.7.The ranking of the comprehensive evaluation results from superior to inferior is as follows:Solar&biomass heating system,solar&natural gas heating system,biomass heating system,solar&coal heating system,coal heating system,solar&electric heating system.