Numerical Simulation of the Distribution of In Situ Cigarette Combustion-Generated Particulate Matter
Abstract
:1. Introduction
2. Mathematical Model
2.1. Cigarette Combustion Model
2.1.1. Water Evaporation Model
2.1.2. Tobacco Pyrolysis Model
2.1.3. Formation and Oxidation of Carbonaceous Residue
2.1.4. Mass Transfer Equation of the Gas Phase
2.1.5. Gas Products of Oxidation
2.1.6. Energy Equation of Porous Media
2.1.7. Radiation Effects
2.1.8. Interface Heat Exchange
2.1.9. Porous Medium Flow Model
2.1.10. Variation of Tobacco Permeability
2.1.11. Ash Formation Model
2.2. Particle Dynamics Model
2.2.1. Particle Generation Model
2.2.2. Particle Collision Model
2.2.3. Deposition Model
3. Simulation Example and Solving Process
4. Results and Discussion
5. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Physical and Chemical Reactions | Constitutes | Reaction Order | Activation Energy (KJ·mol−1) | Pre-Exponential Factor (A/min−1) | Mass Fraction (%) |
---|---|---|---|---|---|
Water evaporation | Precursor 1 | 1.6 | 41.6 | 2.1 × 106 | 100 |
Pyrolysis | Precursor 2 | 1.6 | 77.2 | 4.3 × 108 | 28 |
Precursor 3 | 1.7 | 104.3 | 1.6 × 1010 | 33 | |
Precursor 4 | 1.7 | 130.6 | 2.3 × 1011 | 11 | |
Precursor 5 | 1.4 | 50.4 | 1.5 × 103 | 28 | |
Oxidation | Species 1 | 1.5 | 160.0 | 1.9 × 1011 | 55 |
Species 2 | 1.5 | 350.2 | 5.2 × 1024 | 45 |
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Chen, S.; Liu, H.; Sun, Z.; Xie, H. Numerical Simulation of the Distribution of In Situ Cigarette Combustion-Generated Particulate Matter. Colloids Interfaces 2020, 4, 59. https://0-doi-org.brum.beds.ac.uk/10.3390/colloids4040059
Chen S, Liu H, Sun Z, Xie H. Numerical Simulation of the Distribution of In Situ Cigarette Combustion-Generated Particulate Matter. Colloids and Interfaces. 2020; 4(4):59. https://0-doi-org.brum.beds.ac.uk/10.3390/colloids4040059
Chicago/Turabian StyleChen, Shi, Hanqing Liu, Zhiguo Sun, and Hongyong Xie. 2020. "Numerical Simulation of the Distribution of In Situ Cigarette Combustion-Generated Particulate Matter" Colloids and Interfaces 4, no. 4: 59. https://0-doi-org.brum.beds.ac.uk/10.3390/colloids4040059