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http://dx.doi.org/10.5855/ENERGY.2014.23.4.223

Analysis on the Explosion Risk Characteristic of Hydrogen blended Natural Gas  

Kang, Seung-Kyu (Safety Research Division, Korea Gas Safety Corporation)
Kim, Young-Gu (Safety Research Division, Korea Gas Safety Corporation)
Kwon, Jeong-Rak (Safety Research Division, Korea Gas Safety Corporation)
Publication Information
Journal of Energy Engineering / v.23, no.4, 2014 , pp. 223-229 More about this Journal
Abstract
This study investigated the explosion characteristics of HCNG fuel using a simulation tool. The damage caused by the storage container explosion and vapor cloud explosion in a gas station was predicted. In case of an vapor cloud explosion in the HCNG station, 50~200kPa explosion pressure was predicted inside the station. When the cylinder explosion was occurred, in case of hydrogen, the measured influential distance of overpressure was 59m and radiant heat was 75m. In case of CNG, influential distance of overpressure was 89m and radiant heat was 144m would be estimated. In case of 30% HCNG that was blended with hydrogen and CNG, influential distance of overpressure was 81m and radiant heat was 130m were measured. The damage distance that explosive overpressure and radiant heat influenced CNG was seen as the highest. HCNG that was placed between CNG and hydrogen tended to be seen as more similar with CNG.
Keywords
HCNG; Explosion; Risk assessment; Overpressure; Radiant heat;
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