### Выдержка

The mathematical model of the ignition process of a drop of water-coal fuel (WCF) developed by the authors in the flow of a high-temperature oxidizer (air) has been presented. According to the results of the mathematical modeling, it has been established that the zone of ignition of the WCF particle with an increase in the flow velocity shifts to the area of the aerodynamic trace of the drop. A prognostic modeling of the ignition processes of the water-coal fuel drops under conditions corresponding to the furnace spaces (intensive radiation-convective heating, change in the dynamics of the aerodynamic spectrum of a fuel particle) of typical boiler units has been carried out. A comparative analysis of the ignition delay times (t
_{ign}
), obtained theoretically, and published earlier experimental values of (t
_{ign}
) has showed their good conformance. The results of the mathematical modeling have shown that the best option for stable ignition and burning of the WCF drop can be a combustion space consisting of two successive combustion chambers: in the first one, the thermal preparation and ignition of the WCF particle is carried out, and the second one is direct combustion.

Язык оригинала | Английский |
---|---|

Страницы (с-по) | 375-385 |

Число страниц | 11 |

Журнал | Combustion and Flame |

Том | 203 |

DOI | |

Состояние | Опубликовано - 1 мая 2019 |

### Отпечаток

### ASJC Scopus subject areas

- Chemistry(all)
- Chemical Engineering(all)
- Fuel Technology
- Energy Engineering and Power Technology
- Physics and Astronomy(all)

### Цитировать

**Effect of high-temperature gas flow on ignition of the water-coal fuel particles.** / Salomatov, Vladimir; Kuznetsov, Genii; Syrodoy, Samen; Gutareva, Nadezhda.

Результат исследований: Материалы для журнала › Статья

*Combustion and Flame*, том. 203, стр. 375-385. https://doi.org/10.1016/j.combustflame.2019.02.025

}

TY - JOUR

T1 - Effect of high-temperature gas flow on ignition of the water-coal fuel particles

AU - Salomatov, Vladimir

AU - Kuznetsov, Genii

AU - Syrodoy, Samen

AU - Gutareva, Nadezhda

PY - 2019/5/1

Y1 - 2019/5/1

N2 - The mathematical model of the ignition process of a drop of water-coal fuel (WCF) developed by the authors in the flow of a high-temperature oxidizer (air) has been presented. According to the results of the mathematical modeling, it has been established that the zone of ignition of the WCF particle with an increase in the flow velocity shifts to the area of the aerodynamic trace of the drop. A prognostic modeling of the ignition processes of the water-coal fuel drops under conditions corresponding to the furnace spaces (intensive radiation-convective heating, change in the dynamics of the aerodynamic spectrum of a fuel particle) of typical boiler units has been carried out. A comparative analysis of the ignition delay times (t ign ), obtained theoretically, and published earlier experimental values of (t ign ) has showed their good conformance. The results of the mathematical modeling have shown that the best option for stable ignition and burning of the WCF drop can be a combustion space consisting of two successive combustion chambers: in the first one, the thermal preparation and ignition of the WCF particle is carried out, and the second one is direct combustion.

AB - The mathematical model of the ignition process of a drop of water-coal fuel (WCF) developed by the authors in the flow of a high-temperature oxidizer (air) has been presented. According to the results of the mathematical modeling, it has been established that the zone of ignition of the WCF particle with an increase in the flow velocity shifts to the area of the aerodynamic trace of the drop. A prognostic modeling of the ignition processes of the water-coal fuel drops under conditions corresponding to the furnace spaces (intensive radiation-convective heating, change in the dynamics of the aerodynamic spectrum of a fuel particle) of typical boiler units has been carried out. A comparative analysis of the ignition delay times (t ign ), obtained theoretically, and published earlier experimental values of (t ign ) has showed their good conformance. The results of the mathematical modeling have shown that the best option for stable ignition and burning of the WCF drop can be a combustion space consisting of two successive combustion chambers: in the first one, the thermal preparation and ignition of the WCF particle is carried out, and the second one is direct combustion.

KW - Aerodynamic spectrum

KW - Ignition

KW - Ignition delay time

KW - Oxidizer flow

KW - Water-coal fuel

UR - http://www.scopus.com/inward/record.url?scp=85062330812&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85062330812&partnerID=8YFLogxK

U2 - 10.1016/j.combustflame.2019.02.025

DO - 10.1016/j.combustflame.2019.02.025

M3 - Article

AN - SCOPUS:85062330812

VL - 203

SP - 375

EP - 385

JO - Combustion and Flame

JF - Combustion and Flame

SN - 0010-2180

ER -