LCA-based energy evaluating with application to school buildings in Taiwan

Abstract

The incorporation of environmental and energy considerations into the building design will become the main stream of the consmrction indwqv. This research intended to demonstrate the Ire-cycle inventory technique employed in the analysis of energy consumptions during the life time of the school buildings in Taiwan. There are hvo poplar types of school buildings in Taiwan. One is steel-based construction (hereqAer refrred IO SQ. The other is reinforced concrete consmction (hereaper refeved to RC). Two selected buildings located at Taichung County have been analyzed in this research. There are five stages in the whole life of school buildings including manufacturing. erection. occupation, demolition and disposal. I n this study, a 50-year service time was assumed for both buildings. The results show that the most energy consumption occurs in the occupation stage for both selected school buildings. Thej contribute 9S.8% and 87.2% of the Iota1 energy connrmption in its service time for the SC and RC buildings, respecfively. However, the consmrction processes may influence the energy consumption signifcanfly.It also concluded that both selected buildings consumed lots of energy during the first 30 years, and then energy consumptions ofthe selectedschool buildings was leveled ofl The study of improving shading design was found that the selected SC school building with the shading board could save 29% of energy during its service time, whereas it only saved 13% for the RC building. The unceriainty annlysis wing the Monte Carlo simulation was also conducted in the shrdy. The data were presented in the means and 95% confidential infenah. The Applications of LCA-based Evaluating ToolsThere are four phases m the LCA studies, that is, the goal and definition, the inventory, the impact assessment, ? C-7695-20486 0 xK13 IEEE