Thermal explosion in closed systems: Criteria and critical conditions
| Autor: | K. B. Koshelev, V. Yu. Filimonov |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Exothermic reaction
Bistability Chemistry Plane (geometry) General Chemical Engineering Computation General Physics and Astronomy Energy Engineering and Power Technology Thermodynamics 02 engineering and technology General Chemistry Mechanics 01 natural sciences 010305 fluids & plasmas law.invention Ignition system 020303 mechanical engineering & transports Fuel Technology 0203 mechanical engineering law 0103 physical sciences Thermal explosion Physics::Chemical Physics Critical condition Parametric statistics |
| Zdroj: | Combustion, Explosion, and Shock Waves. 53:538-547 |
| ISSN: | 1573-8345 0010-5082 |
| DOI: | 10.1134/s0010508217050069 |
| Popis: | A new criterion for thermal explosion in exothermically reacting systems for the case of arbitrary one-step conversions is proposed. The computation method is based on the analysis of the equation of maximum temperatures obtained for closed systems taking into account reactant consumption. The dependence of the maximum temperature on the Semenov and Todes parameters is bistable and the critical conditions are determined by the extremum conditions on the relevant parametric diagrams. The demarcation lines of ignition in the Todes criterion–Semenov criterion parametric plane are calculated for second-order exothermic reactions. Comparison of numerical and analytical calculations shows that they are in satisfactory agreement. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|