Abstract
When flammable gas leaks, there may be a high risk of an explosion accident caused by potential ignition sources. To reduce a lot of engineering analysis by experiment and make it easy to predict a reasonable extent of explosion hazardous area, 25 city gas leakage scenarios reflecting various pressures and leakage hole sizes were analyzed. Computational fluid dynamics analysis was conducted by applying an incompressible three-dimensional k-e turbulence model applying an equivalent leakage diameter to sonic leakage, and We have confirmed that the hazardous distance is nonlinearly proportional to the diameter and pressure of the leakage. And then, the correlation was found to satisfy the IEC 60079-10-1 predicting the explosion hazardous area by less than one meter.
| Translated title of the contribution | Study on Prediction of Explosion Hazard Area and Correlation of Major Factors through Computational Fluid Dynamics Analysis |
|---|---|
| Original language | Korean |
| Pages (from-to) | 17-23 |
| Number of pages | 7 |
| Journal | Transactions of the Korean Society of Mechanical Engineers, B |
| Volume | 49 |
| Issue number | 1 |
| DOIs | |
| State | Published - 2025 |
Keywords
- Computational Fluid Dynamics
- Correlation Analysis
- Explosion Hazardous Area
- Flammable Gas Release