A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Analysis of nonpremixed multiregion laminar flames through biofuel porous particles considering the effect of heat recirculation
In this study, a comprehensive analysis is conducted to evaluate the effects of heat recirculation and particle porosity on combustion characteristics of multizone counterflow nonpremixed flames fed with porous biofuel particles. For this purpose, the structure of flame contains preheat, postvaporization, and oxidizer zones. Additionally, Lycopodium is considered as the volatile biofuel, especially due to its appreciable flammability and dispensability. Dimensionalized and nondimensionalized forms of mass and energy conservation equations are scrutinized in each zone. To explore of the thermal recirculation effect, a specific term is included in the energy conservation equation. The variation of several parameters, including flame temperature, particle radius, mass fraction of the gaseous fuel and oxidizer, mass particle content, equivalence ratio, and particle porosity, is studied in this work considering and ignoring the thermal recirculation impact. As a result, increasing heat recirculation coefficient from to 1 will rise the flame temperature and shift the flame position to the left side (fuel nozzle). Furthermore, consideration of the thermal heat recirculation will improve the gaseous fuel production in the preheat and postvaporization zones. Additionally, an increase in mass concentration and reduction of particles radius and porosity would lead to a rise in the flame temperature.
Nonpremixed combustion of dust particles in a counterflow arrangement is studied.
Particles porosity and heat recirculation modeling are investigated.
Effects of fuel Lewis number and particle porosity on flame temperature are studied.
Effects of equivalence ratio and particle radius on flame temperature are studied.
Analysis of nonpremixed multiregion laminar flames through biofuel porous particles considering the effect of heat recirculation
In this study, a comprehensive analysis is conducted to evaluate the effects of heat recirculation and particle porosity on combustion characteristics of multizone counterflow nonpremixed flames fed with porous biofuel particles. For this purpose, the structure of flame contains preheat, postvaporization, and oxidizer zones. Additionally, Lycopodium is considered as the volatile biofuel, especially due to its appreciable flammability and dispensability. Dimensionalized and nondimensionalized forms of mass and energy conservation equations are scrutinized in each zone. To explore of the thermal recirculation effect, a specific term is included in the energy conservation equation. The variation of several parameters, including flame temperature, particle radius, mass fraction of the gaseous fuel and oxidizer, mass particle content, equivalence ratio, and particle porosity, is studied in this work considering and ignoring the thermal recirculation impact. As a result, increasing heat recirculation coefficient from to 1 will rise the flame temperature and shift the flame position to the left side (fuel nozzle). Furthermore, consideration of the thermal heat recirculation will improve the gaseous fuel production in the preheat and postvaporization zones. Additionally, an increase in mass concentration and reduction of particles radius and porosity would lead to a rise in the flame temperature.
Nonpremixed combustion of dust particles in a counterflow arrangement is studied.
Particles porosity and heat recirculation modeling are investigated.
Effects of fuel Lewis number and particle porosity on flame temperature are studied.
Effects of equivalence ratio and particle radius on flame temperature are studied.
Analysis of nonpremixed multiregion laminar flames through biofuel porous particles considering the effect of heat recirculation
Malekian, Saeid (author) / Heidarilalabadi, Shilan (author) / Malekian, Navid (author) / Moghadasi, Hesam (author) / Bidabadi, Mehdi (author)
Heat Transfer ; 50 ; 992-1020
2021-01-01
29 pages
Article (Journal)
Electronic Resource
English
Suppression of nonpremixed flames by fluorinated ethanes and propanes
| Tema Archive | 2000
The structure and stability of nonpremixed gas jet flames
| TIBKAT | 1987
| British Library Online Contents | 2009
Specific Absorption Coefficients of Soot Particles in Laminar Flat Flames
| British Library Conference Proceedings | 1992