小区住宅能源总线系统碳排放精细化计算及低碳潜力评估OA

With the increasingly severe global climate change,carbon neutrality has become the core consensus of countries worldwide to address the climate crisis and to achieve sustainable development.As a major global energy consumer and carbon emitter,China has integrated carbon peaking and carbon neutrality into the overall layout of ecological civilization construction,and clarified the medium and long-term development goals of dual-carbon.As a key industry for carbon emission control in China,the construction sector takes cooling and heating systems as the core source of building carbon emissions,so there is an urgent need for quantitative research and application demonstration of low-carbon energy supply technologies.This paper takes a residential community in Shanghai as the case for study,which consists of three 10-story north-south slab-type residential buildings with a single construction area of 6 125 m2 and an air conditioning service area of 4 150 m2,and conducts a full life-cycle carbon emission study on the energy bus system adopted in the project(a distributed district energy supply system that realizes integrated building heating and cooling through a single energy distribution network).The study defines three stages of construction,operation and maintenance,demolition and recycling as the accounting boundary,and carries out a full life-cycle carbon emission comparison between this system and the traditional separate heating and cooling system of gas boiler heating+electric refrigeration,to quantify the low-carbon benefit difference between different energy supply systems.The results show that the energy bus system can significantly reduce the carbon emission intensity per unit of the air conditioning area in the long-term operation of residential buildings,with outstanding full life-cycle low-carbon benefits and good large-scale promotion prospects in urban residential areas of the Yangtze River Delta.The research results can provide quantitative support for the selection and application of low-carbon energy supply systems for urban residential buildings,help achieve the dual-carbon goals in the construction sector,and offer practical references for the low-carbon transformation of urban residential buildings worldwide.