| Title |
Methodology for Deriving Essential and Deficient LCI DB for Estimation of Carbon Emissions for Hydrogen Technology in the Field of Land, Infrastructure and Transport |
| Authors |
곽인호(Kwak, In Ho) ; 위대형(Wi, Dea Hyung) ; 권도은(Kwon, Do Eun) ; 이병현(Lee, Byeong Hyeon) |
| DOI |
https://doi.org/10.12652/Ksce.2025.45.2.0203 |
| Keywords |
국토교통분야 수소기술; 수소 인프라; LCI DB; 전과정평가; 수소도시 Hydrogen technology in the field of land and transportation; Hydrogen infrastructure; LCI DB; LCA; Hydrogen city |
| Abstract |
Hydrogen is widely recognized as a representative clean energy source that does not emit carbon dioxide when used as an energy source. Currently, the estimation of hydrogen's carbon emissions primarily focuses on the emissions generated during the production stage, depending on the production method, and carbon footprint analyses are conducted accordingly. However, in order to use hydrogen in practice, various infrastructures must be established to store, transport, and ultimately utilize the produced hydrogen. Carbon emissions also occur during the construction and operation of these infrastructures, and these emissions must be measured as well. Therefore, it is crucial to systematically assess the carbon emissions not only from hydrogen production but also from storage, transportation, and utilization throughout the entire life cycle. The LCA (Life Cycle Assessment) methodology can be applied to evaluate carbon emissions across all stages from hydrogen production to utilization, and to conduct such an assessment, establishing a reliable LCI (Life Cycle Inventory) database is essential. Nevertheless, the environmental impacts arising from the construction and operation of various infrastructure facilities required for hydrogen production and utilization have not been adequately considered. Thus, it is necessary to develop an appropriate LCA methodology that comprehensively includes all processes from production to utilization. Accordingly, this study aims to develop a methodology for deriving a database list necessary for constructing an LCI DB applicable to the life cycle assessment of hydrogen technologies and hydrogen cities in the transportation and infrastructure sector and to present it in detail. |