Paper Conference

Proceedings of ASim Conference 2014: 2nd Asia conference of IBPSA-China, Japan, Korea


Simulation Study on Impact Factors for Life-cycle Energy Consumption and CO2 Emission of Chinese Housing in Cold Climate Zone

Chunhui Zhang, Borong Lin, Bo Peng

Abstract: Life-cycle assessment is an important approach in building energy consumption and CO2 emission. In order to analyze the impacts of data time-effectiveness, representativeness and technical differences on building LCE and LCCO2, this research carried out a comparison study with a residential building in cold areas of China with energy consumption simulation program DeST-h and Building Environment Load Evaluation System (BELES). It found that the deviation on LCE caused by electric power energy consumption factors of different years can be up to 6.36%, and the deviation of LCE results calculated by using local electric power energy consumption and emission factor and using the national average values is 12.52% while the deviation of LCCO2 is 10.42%. In addition, it should be taken into consideration that LCE and LCCO2 increase by 2.90% and 2.28% respectively when the insulation performance of wall changes over time, the LCE and LCCO2 decrease by 4.19% and 3.23% when the U-value of window decreases from 2.3W/(m²•K) to 1.7W/(m²•K), and the deviation of different window configurations with the same U-value on LCE and LCCO2 is only about 1%.
Keywords: LCA, data time-effectiveness, data representativeness, energy consumption, carbon emission
Pages: 794 - 801