Analytical and numerical evaluation of flammability limit of magnesium-fueled thermophotovoltaic combustor considering inter-regional radiation, heat loss and O2-N2,Ar,He oxidizers

Fuel ◽  
2022 ◽  
Vol 312 ◽  
pp. 122848
Author(s):  
Peyman Maghsoudi ◽  
Mehdi Bidabadi
Keyword(s):  
Heat Loss ◽  
Numerical Evaluation ◽  
Radiation Heat ◽  
Flammability Limit ◽  
Radiation Heat Loss

Theoretical Analysis of Diffusion Flames Using Perturbation Method for Different Lewis and Damkohler Numbers

2013 ◽  
Vol 29 (2) ◽  
pp. 345-354 ◽  
Author(s):  
Mehdi Bidabadi ◽  
Payam Asadollahzadeh ◽  
Mohammad N. P. Meibudy
Keyword(s):  
Perturbation Method ◽  
Burning Rate ◽  
Heat Loss ◽  
Reaction Zone ◽  
Diffusion Flames ◽  
Flame Temperature ◽  
Asymptotic Model ◽  
Radiation Heat ◽  
Exponential Parameter ◽  
Radiation Heat Loss

AbstractThis paper presents a two dimensional asymptotic model of counterflow diffusion flame in the presence of radiation heat loss. The fuel and oxidizer, respectively, are injected from left and right hand side of the flame. The effects of burning rate, Lewis and Damkohler number on the structure and extinction of the flame is studied using perturbation method. To do so, the structure of the flame is considered to be composed of reaction zone with a thickness of O(ε) and radiation heat loss zone, of O(δ) thickness, that sandwiches the reaction zone. The effect of burning rate is illustrated by burning pre-exponential parameter, B. It is found that with the increase of the parameter, the flame temperature is also increased, and flame location moves toward the fuel side. In addition, the variation of Lewis number of fuel and oxidizer has a significant effect on the location and temperature of the flame.

Prediction of lifted, non-premixed turbulent flames using a mixedness-reactedness flamelet model with radiation heat loss

2002 ◽  
Vol 128 (1-2) ◽  
pp. 60-73 ◽  
Author(s):  
C.Y. Ma ◽  
T. Mahmud ◽  
M. Fairweather ◽  
E. Hampartsoumian ◽  
P.H. Gaskell
Keyword(s):  
Heat Loss ◽  
Turbulent Flames ◽  
Radiation Heat ◽  
Flamelet Model ◽  
Radiation Heat Loss ◽  
Premixed Turbulent Flames
Sign in / Sign up

Export Citation Format

Share Document