Life Cycle Carbon Emission Analyzing of Rural Residential Energy Efficiency Retrofit-A Case Study of Gansu province

Objective To study and analyze the life-cycle carbon emissions of existing rural residential energy retrofit projects to provide theoretical data support for local green development sustainable construction. Methods Life cycle analysis (LCA) was used compare life (LCE) a envelope efficiency retrofitting project in central Gansu. Results It found that dwellings have very high potential retrofitting, contribution retrofitted homes CO2 reduction can reach more than 30% over whole cycle. Secondly, during process, neglected previous studies, account about quarter LCE. is concluded introducing LCA into evaluating projects' energy-saving emission benefits scientific, reasonable, necessary.