한국연소학회:학술대회논문집
- 한국연소학회 2005년도 제31회 KOSCO SYMPOSIUM 논문집
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- Pages.207-214
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- 2005
운동량에 의해 제어되는 수소 부양 제트 및 화염의 거동에 관한 이론적 해석
Theoretical Study on the Behavior of Momentum-controlled Buoyant Jet and Flame of Hydrogen
초록
Hydrogen safety is one of the key technical issue with growing attention on utilization of hydrogen energy. This study is aimed to predict behavior of momentum-controlling buoyant jet and flame caused by hydrogen leakage from a high pressured tank. Approximate solutions were derived for the case of turbulent buoyant jet and diffusion flame in still air. In case of hydrogen jet with low Froude number (100-4000), computed jet trajectories were compared with experimental data and showed good agreement with them. Jet and flame trajectories and flame length of hydrogen are predicted and compared with the buoyant flame of propane. The results well show that buoyancy is dominant in the range of low Froude number, while initial momentum is dominant in the range of high Froude number. That effect is more distinct for hydrogen flame than the case of propane.