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http://dx.doi.org/10.7842/kigas.2013.17.5.15

Consequence Analysis of Hydrogen Blended Natural Gas(HCNG) using 3D CFD Simulation  

Kang, Seung-Kyu (Safety Research Division, Korea Gas Safety Corporation)
Bang, Hyo-Jung (Safety Research Division, Korea Gas Safety Corporation)
Jo, Young-Do (Safety Research Division, Korea Gas Safety Corporation)
Publication Information
Journal of the Korean Institute of Gas / v.17, no.5, 2013 , pp. 15-21 More about this Journal
Abstract
This study evaluated comparison of the risk according to the type of fuel by three-dimensional simulation tool(FLACS). The consequence analysis of fire explosion and jet-fire was carried out in the layout of a typical high-pressure gas filling stations using CNG, hydrogen and 30%HCNG. Under the same conditions, hydrogen had a 30kPa maximum overpressure, CNG had a 0.4kPa and HCNG had a 3.5kPa. HCNG overpressure was 7.75 times higher than the CNG measurement, but HCNG overpressure was only 11.7% compared to hydrogen. In case of flame propagation, hydrogen had a very fast propagation characteristics. On the other hand, CNG and HCNG flame propagation velocity and distance tended to be relatively safe in comparison to hydrogen. The estimated flame boundary distance by jet-fire of hydrogen was a 5.5m, CNG was a 3.4m and HCNG was a 3.9m.
Keywords
hydrogen blended natural gas(HCNG); consequence analysis; explosion; jet fire;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
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