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工程中使用的机械设备是施工阶段碳排放的主要来源,研究该阶段的碳排放有助于建筑企业实施可行、有效的减排对策。该文基于PAS2050规范,确定住宅工程施工阶段的碳排放源、排放边界、计算模型,并以中国生命周期参考数据库确定机电设备的碳排放因子,通过现有住宅工程的清单量实现碳总量的便捷计算与分析。该数据库确定的机电设备单位台班碳排放因子能为建筑企业选用机电设备规格与型号提供参考,简便的计算方法为其碳排放预算、结算、审计等提供数据支持。
The mechanical equipment used in the project is the main source of carbon emissions during the construction phase. Studying the carbon emissions at this stage will help the construction enterprises to implement feasible and effective measures to reduce emissions. Based on the PAS2050 standard, this paper determines the carbon emission sources, emission boundaries and calculation models for the residential construction phase. The carbon emission factor of the mechanical and electrical equipment is determined by reference to the Chinese lifecycle reference database, and the carbon inventory is achieved through the existing residential project inventory Convenient calculation and analysis. The carbon emission factor per unit of mechanical and electrical equipment identified by this database can provide reference for construction enterprises to choose the specifications and models of mechanical and electrical equipment. The simple calculation method provides data support for their carbon budget, settlement and auditing.