튜브 직경에 따른 고압 수소의 자발 점화 현상에 대한 연구
Investigation on the Self-ignition of High-pressure Hydrogen in a Tube between Different Inner Diameter
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Numerical simulations and experiments are performed to investigate the flame development inside tubes with different diameters at the same burst pressure. It is shown that generation of a stable flame play a role in self-ignition. In the smaller tube, multi-dimensional shock interaction is occurred near the diaphragm. After flame of a cross-section is developed, stable flame remains for a moment then it grows having enough energy to overcome the sudden release at the exit. Whereas shock interaction generate complex flow further downstream for a larger tube, it results in stretched flame. This dispersed flame has lower average temperature which makes it easily extinguished.
Abstract
Numerical simulations and experiments are performed to investigate the flame development inside tubes with different diameters at the same burst pressure. It is shown that generation of a stable flame play a role in self-ignition. In the smaller tube, multi-dimensional shock interaction is occurred near the diaphragm. After flame of a cross-section is developed, stable flame remains for a moment then it grows having enough energy to overcome the sudden release at the exit. Whereas shock interaction generate complex flow further downstream for a larger tube, it results in stretched flame. This dispersed flame has lower average temperature which makes it easily extinguished.
참고문헌 (16)
- Y. Suwa, "Design of Safe Hydrogen Refueling Stations against Gas-Leakage, Explosion and Accidental Automobile Collision", Proceedings of the 16th World Hydrogen Energy Conference, pp.139~ (2006)
- Review of Unidentified Ignition Sources of Unplanned Flammable Releases - Comparison of Offshore and Onshore data, Report HSL, "2006", 09, Health & Safety Lab., pp.2006, ~
- H. Wolanski, "Investigation into the Mechanism of the Diffusion Ignition of a Combustible Gas Flowing into an Oxidizing Atmosphere", Proceedings of the Combustion Institute, 14, pp.1217~ (1973)
- F.L. Dryer, "Spontaneous Ignition of Pressurized Releases of Hydrogen and Natural Gas into Air", Combust. Sci. Tech., 179(4), pp.663~694 (2007)[DOI]
- B.J. Lee, "Numerical Study of Spontaneous Ignition of Pressurized Hydrogen Released by the Failure of a Rupture Disk into a Tube", Int. J. Hydrogen Energy, 34(20), pp.8763~8769 (2009)[DOI]
- J.X. Wen, "Numerical Study on Spontaneous Ignition of Pressurized Hydrogen Release through a Length of Tube", Combust. Flame, 156(11), pp.2173~2189 (2009)[DOI]
- H.J. Lee, "Experimental Investigation on the Self-Ignition of Pressurized Hydrogen Released by the Failure of a Rupture Disk through Tubes", Proceedings of the Combustion Institute, 33, pp.2351~2358 (2011)
- T. Mogi, "Self-Ignition and Explosion during Discharge of High Pressure Hydrogen", J. Loss Prevent. Proc., 21(2), pp.199~204 (2008)[DOI]
- Y. Wada, "An Accurate and Robust Flux Splitting Scheme for Shock and Contact Discontinuities", SIAM J. Sci. Comput., 18(3), pp.633~657 (1997)[DOI]
- M.P. Burke, "Comprehensive <TEX>$H_2", O_2$<, Int. J. Chem. Kinet., pp.2012, 44(7)[DOI]
- D.G. Goodwin, "An Open-Source, Extensible Software Suite for CVD Process Simulation", Proceedings of CVD XVI and EuroCVD Fourteen, pp.155~162 (2003)
- C.R. Wilke, "A Viscosity Equation for Gas Mixtures", J. Chem. Phys., 18(4), pp.517~522 (1950)[DOI]
- S. Mathur, "Thermal Conductivity of Binary, Ternary and Quaternary Mixtures of Rare Gases", Mol. Phys., 12(6), pp.569~579 (1967)[DOI]
- 이형진, "튜브 내 고압 수소의 파열막 형상에 따른 자발 점화 현상에 대한 수치해석", 한국연소학회지, 18(3), pp.31~37 (2013), 한국연소학회
- H.J. Lee, "Numerical Study on the Spontaneous-Ignition Features of High-Pressure Hydrogen Released through a Tube with Burst Condition", Proceedings of the Combustion Institute, 34, pp.2173~2180 (2015)
- H. Yamashita, "A Numerical Study on Flame Stability at the Transition Point of Jet Diffusion Flames", Proceedings of the Combustion Institute, 26, pp.27~34 (1996)