Abstract ▼ AI-Helper

As the environmental problem is becoming more severe due to the global warming, the international cooperation system is being strengthened to address this problem. InKorea, the construction industry accounts for approximately 42 % of the total industrial carbon footprint, and studies are underway on...

As the environmental problem is becoming more severe due to the global warming, the international cooperation system is being strengthened to address this problem. InKorea, the construction industry accounts for approximately 42 % of the total industrial carbon footprint, and studies are underway on LCA to assess the CO2 emission from structures. However, because the assessment process is complex, the statistical database establishment and the reference values according to the design conditions have not been sufficiently studied. For the apartment houses that account for 70 % or more of the residential buildings, this study aimed to develop an assessment system for calculating CO2 emission and determine reference values for apartment houses according to the design conditions. The following are the main results of this study. (1) Development of CO2 assessment system Twelve main materials were selected via the sensibility analysis to develop an assessment system that can reliably calculate the CO2 emission only using the main material input volume. (2) DB analysis for the input and output factors via LCA Using the inter-industry relation table, the embodied energy analysis was conducted on the input materials to calculate the CO2 emission unit according to the unit cost demand, for 81 directly related items among basic 403 items in the inter-industry relation table. (3) Development of BCA program By applying the assessment system developed in this study, a program was developed to calculate, compare and assess the energy cost, energy consumption and CO2 emission for the input materials during the apartment house construction stage. This program ensures reliable analysis only using the volume of main materials, without the need for identifying the total input volume, and provides simple DB update. (4) CO2 emission unit calculation for apartment houses The design conditions for apartment houses that were built from 2000 to 2005 by Korea Land and Housing Corporation were analyzed to examine the CO2 emission according to the design conditions. The results showed that the average CO2 emission unit of apartment houses was 416,659g-CO2/㎡.. This study is meaningful in that it developed an assessment system to more practically analyze the environmental performance of buildings only using the volume of main materials and that it empirically presented the CO2 emission according to the design conditions for apartment houses.