Development of hybrid life cycle inventories (HLCI) database for embodied energy and carbon intensities of Malaysian construction materials

10th Asia Pacific Structural Engineering and Construction Conference 2018

工业技术（总论）

Mohd Sabki Wan Omar, Wan^1

School of Environmental Engineering, Universiti Malaysia Perlis, Perlis, Arau

02600, Malaysia^1

关键词: Building industry;    Carbon intensity;    Embodied carbons;    Inherent limitations;    Intensity values;    Life cycle inventories;    Life Cycle Inventory;    Materials and products;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/513/1/012041/pdf
DOI  :  10.1088/1757-899X/513/1/012041

学科分类：工业工程学

来源: IOP

【 摘 要 】

This paper investigates the completeness of process, input-output (I-O) and hybrid life cycle inventory (LCI) analysis and their applicability as applied to the Malaysian construction materials. The process, I-O, and hybrid analysis were evaluated at the basic materials and products level to identify the gaps between models and further incorporated into the material and product inputs of a selected building. It was found that the largest differences in embodied energy (EE) and embodied carbon (EC) intensities of the materials and products between I-O and hybrid analysis accounted for up to 65.90% and 62.08%, respectively. Further analysis of the EE and EC intensities of the building revealed that the hybrid analysis were significantly higher than I-O analysis estimated to be 44.39% and 43.57% respectively. On average, the EE and EC intensity values using I-O analysis were lower than hybrid analysis due to inherent limitations in this model. Although using I-O data was considered not representative due to inherent limitation, it was considered applicable for energy analysis due to lack of process data in Malaysian building industry.