Research on Implementation Priority of Carbon Reduction Technologies in Nearly Zero Carbon Residential Community Based on Incremental Cost Control
As the basic unit of human life and activities,residential community is an important entry point and focus to achieve the goal of"carbon peak and neutrality"in China.With low-carbon and nearly-zero carbon residential communities as research objects,this study established community models with different plot ratios,and determined the carbon emission ratio of building,transport,waste,water,and community lighting in the benchmark community.A comprehensive analysis of the carbon reduction potential and economy of various low-carbon technologies was analyzed,and the implementation sequence of low-carbon technologies in residential communities in each climate zone was then proposed.According to the research results,the overall carbon reduction technology implementation sequence in cold and cold climate zones should be waste treatment,energy conservation of envelope structure,energy system optimization,photovoltaic,and lighting energy conservation.The results in hot summer and cold winter,hot summer and warm winter climate zones should be waste treatment,building shading,photovoltaic,energy system optimization,and lighting energy saving.For temperate climate zone,the sequence should be waste treatment,photovoltaic,and lighting energy saving.Under the conditions of different climate zones and different plot ratios,communities can realize carbon reduction by 50%~80%.The incremental cost of building area per unit of zero-carbon communities in cold and cold climates is about 700~900 yuan,300~500 yuan in hot summer and cold winter,hot summer and warm winter climates,and 150~250 yuan in mild climates.With the increase in floor area ratio,the cost of hot summer and cold winter and hot summer and warm winter climate zones also rises,but the cost of severe cold,cold and mild climate zones remains unchanged.
nearly zero carbon residential communitycarbon reduction technologyincremental costtechnical implementation priority