Computer-aided supporting tool for LCA evaluation of energy efficiency of the buildings _ assessment method and case studies

SUSTAINABLE BUILT ENVIRONMENT D-A-CH CONFERENCE 2019

生态环境科学

Domjan, S.^1 ; Arkar, C.^1 ; Medved, S.^1

Laboratory for Sustainable Technologies in Buildings, Faculty of Mechanical Engineering, University of Ljubljana, Akereva 6, Ljubljana

1000, Slovenia^1

关键词: Decision making process;    Environment impact assessments;    Insulation thickness;    Life Cycle Assessment (LCA);    Life cycle assessment tools;    Life cycle cost analysis;    Life cycle inventory database;    Life-cycle environmental impact;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/323/1/012109/pdf
DOI  :  10.1088/1755-1315/323/1/012109

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In the paper methods and the development of computer tool for the comprehensive life cycle assessment evaluation of the new or renovated buildings is presented. To support decision making process, computer tool was developed and consists of two computational units: the building description unit (BDU), and the life cycle assessment tool (Etool). BDU enables the determination of energy needs and final energy demand for the operation of EPBD systems. For the purpose of environment impact assessment, the life cycle inventory database is integrated into the BDU. Data are exported to LCA evaluation tool Etool that include two assessment modules: life cycle environmental impact module for mid-point and end-point assessment taking into account impact groups and damage factors from IMAPCT2002+ and ReCiPe methods and life cycle costs assessment module for evaluation of costs optimal values of energy efficiency measures for nearly zero energy buildings (nZEB). In the paper case studies are presented and discussed. The results show that energy use has dominant influence on buildings' environment impacts and that life cycle cost analysis show optimal thermal insulation thickness higher than required in current regulative.