家用空调全生命周期碳足迹分析

Analysis on Life Cycle Carbon Footprint of Household Air-conditioner

将家用空调作为为研究对象,在清单分析的基础上运用Ga Bi6软件对其进行生命周期碳排放评估。结果表明:该款家用空调全生命周期碳排放总量为5159.31 kg CO_2equiv,其中使用阶段排放最多(96.07%),原材料阶段次之,运输阶段最少。此外通过不确定性及敏感性分析得知影响空调碳排放的主要因素为使用阶段耗电量、制冷功率、制冷剂的泄漏率,材料环境属性。

Regarding household air-conditioner as the research object, we use the software of GaBi6 to assess its life-cycle carbon emissions on the basis of the inventory analysis. The result shows that the total carbon emissions of household air conditioner during the whole life cycle is 5159.31 kg CO2equiv, the emissions of using phase account for 96 %, the material production phase followed, and the transport phase is the least. In addition, according to the result of uncertainty and sensitivity analysis, electricity consumption in the use stage, environmental properties of materials and refrigerant leak rates are identified as the key driving forces for carbon footprint of air-conditioner.