| ID | 125761 |
| Title Proper | Life-cycle energy of residential buildings in China |
| Language | ENG |
| Author | Chang, Yuan ; Ries, Robert J ; Wang, Yaowu |
| Publication | 2013. |
| Summary / Abstract (Note) | In the context of rapid urbanization and new construction in rural China, residential building energy consumption has the potential to increase with the expected increase in demand. A process-based hybrid life-cycle assessment model is used to quantify the life-cycle energy use for both urban and rural residential buildings in China and determine the energy use characteristics of each life cycle phase. An input-output model for the pre-use phases is based on 2007 Chinese economic benchmark data. A process-based life-cycle assessment model for estimating the operation and demolition phases uses historical energy-intensity data. Results show that operation energy in both urban and rural residential buildings is dominant and varies from 75% to 86% of life cycle energy respectively. Gaps in living standards as well as differences in building structure and materials result in a life-cycle energy intensity of urban residential buildings that is 20% higher than that of rural residential buildings. The life-cycle energy of urban residential buildings is most sensitive to the reduction of operational energy intensity excluding heating energy which depends on both the occupants' energy-saving behavior as well as the performance of the building itself. |
| `In' analytical Note | Energy Policy Vol.62; Nov 2013: p.656-664 |
| Journal Source | Energy Policy Vol.62; Nov 2013: p.656-664 |
| Key Words | Energy Consumption ; Life - Cycle Assessment ; Residential Building ; China |