Abstract
The on-way peak overpressure and flame propagation speed of gas deflagration in the tube with obstacles are important data for process safety. Based on carbon monoxide deflagration experiments, the paper presents a multi-zone integration model for calculation of on-way peak overpressure, in which the tube with obstacles is considered as a series of venting explosion enclosures which link each others. The analysis of experimental data indicates that the on-way peak overpressure of gas deflagration can be correlated as an empirical formula with equivalence ratio of carbon monoxide oxidation, expansion ratio, flame path length, etc., and that the on-way peak overpressure exhibits a linear relationship with turbulence factor and flame propagation speed. An empirical formula of flame propagation speed is given.
| Original language | English |
|---|---|
| Pages (from-to) | 1847-1854 |
| Number of pages | 8 |
| Journal | Science China Technological Sciences |
| Volume | 53 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 2010 |
| Externally published | Yes |
Keywords
- flame propagation speed
- multi-zone integration model
- obstacle
- peak overpressure
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