Development of Korean hydrogen fuelling station codes through risk analysis

When hydrogen fuelling stations were constructed first time in Korea in 2006, there were no studies for hydrogen fuelling stations. Hence the CNG (Compressed Natural Gas) station codes were temporarily adopted. In last three years, from 2006 to 2009, the studies for the development of hydrogen fuelling station were carried out with the support of the Korean government. In this study, three research groups cooperated to develop optimised hydrogen fuelling station codes through risk analysis of hydrogen production and filling systems. Its results were integrated to develop the codes. In the first step to develop the codes, the studies for CNG stations and hydrogen fuelling station were compared with each other and analysed by referring to foreign hydrogen fuelling station study, we investigated the potential problems in developing hydrogen fuelling station codes based on the CNG station studies. In the second, the results of the high-pressure hydrogen leakage experiment were analysed, and a numerical analysis was performed to establish the safety distance from the main facilities of a hydrogen fuelling station to the protection facilities. In the third, HAZOP (Hazard and Operability) and FTA (Fault Tree Analysis) safety assessments were carried out for the on-site and off-site hydrogen fuelling stations-currently being operated in Koreato to analyse the risks in existing hydrogen fuelling stations. Based on the study results of the above three groups, we developed one codes for off-site type hydrogen fuelling stations and another codes for onsite type hydrogen fuelling stations. These were applied from September 2010.

Authors: Kim, Eunjung; Lee, Kwang-won; Kim, Jongsoo; Lee, Younghee; Park, Jaedeuk; Moon, Il ;Full Source: International Journal of Hydrogen Energy 2011, 36(20), 13122-13131 ;