Measurement and Analysis of Carbon Emission in the Whole Life Cycle of Public Buildings—An Example of an Office Building in Zhenjiang
In order to study the carbon emissions of the whole life cycle of public buildings,this article takes the entire life cycle as the system boundary and uses PKPM simulation software to establish a carbon emission model of a two-star green office building in Zhenjiang City.Based on the model,the carbon emissions of the entire life cycle are calculated,analyzed,and evaluated.The carbon emissions throughout the entire life cycle of the office building are 14 383.22 tons of C02,and the annual carbon emissions per unit area are 43.16 kilograms of C02.Among them,the carbon emissions during the operation phase account for 75.08％of the total carbon emissions throughout the entire life cycle,while the carbon emissions during the production phase of building materials account for 23.89％.Considering that the operating life is 50 years and the production of building materials is a short-term behavior,it is of great significance to avoid large-scale demolition and construction.Instead,it is important to replace old buildings with enclosure structures,energy-saving equipment upgrades,installation of photovoltaics,and increasing green space rates to reduce building carbon emissions and even"carbon neutrality".
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