Numerical study of inlet air swirl intensity effect of a Methane-Air Diffusion Flame on its combustion characteristics

Hosseini, Amirjavad Ahmadian; Ghodrat, Maryam; Moghiman, Mohammad; Pourhoseini, S.H.

doi:10.1016/j.csite.2020.100610

Cited by 46 publications

(6 citation statements)

References 40 publications

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“…The radiation model is validated using numerical comparison data for a specific size switch cabinet with and without electronic parts within. Hosseini et al [14] Using the ANSYS Fluent CFD simulation, it was determined how the input air swirl number affected the temperature, radiation heat flux distribution, and dynamic flow behavior of a methane-air diffusion flame. We looked at the characteristics of turbulent flow and radiation heat flux.…”

Section: Introductionmentioning

confidence: 99%

A comparative study of radiation models in spray combustion

shiblawi

Majhool

2023

QJES

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This work deals with the investigation of radiation models for combustion spray. The n-pentane fuel C5h12 is used for chemical reactions with the air. The main objective of these simulations is to compare the experimental data and radiation models for spray combustion and to select the best radiation model. The model is used to interpret the structure and properties of the prediction for spray combustion. The simulated cases are carried out using Ansys Fluent. The mixture fracture probability density function is used to evaluate the non-premixed combustion of vaporized fuel droplets. The Radiation models (p1, discrete coordinate, surface to surface, and Roseland) are used to predict local properties in two dimensions. The results of the numerical simulation are compared with the experimental data. The results showed that the p1 radiation model provides good results through temperature, turbulence kinetic energy, and velocity components.

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Section: Introductionmentioning

confidence: 99%

A comparative study of radiation models in spray combustion

shiblawi

Majhool

2023

QJES

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“…The results show that the blade angle design of 45°+ 60° displays high potential of combustion characteristics at which the NOx and CO emissions are measured to be 27.0 and 11.0 mg/m 3 . Hosseini et al, [6] study the effect of inlet air swirl number of a Methane-Air Diffusion Flame on dynamic stream characteristic, temperature, and radiation heat flux distribution via the analysis of ANSYS Fluent CFD code. The results showed that increases in swirl number increase the flux radiation efficiency by 36.5% and reduces the pollutant NOx by 58.6%.…”

Section: Introductionmentioning

confidence: 99%

CFD Simulation Analysis of Non-Premixed Combustion using a Novel Axial-Radial Combined Swirler for Emission Reduction Enhancement

Samiran

Mansor

Rashid

et al. 2023

CFDL

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Combustion industries for many decades dealing with the issues in reducing the emissions without affecting the performance of combustion. The present study aims to investigate the performance of swirler mechanism which combining between both axial and radial types to reduce emissions and increase the mixing process via the non-premixed method. Each of axial and radial swirler consisted with 8 blades vane. Swirl angle for radial swirler is 35° and inclination angle for axial swirler is 15°. The swirler is designed using Solidworks software package and CFD analysis was then performed using ANSYS Fluent software package. The fuel used is liquefied petroleum gas (LPG) gas which contained 30% propane and 70% butane. The turbulence model standard k-epsilon was used in this study. The result found that the combined swirler was capable to reduce CO emission as the complete reaction into CO2 component was higher. This is due to the broader region of temperature and higher velocity magnitude produced by the combined swirler. However, the maximum temperature result for axial swirler was higher than the combined swirler. As a recommendation, the inclination blade angle in the axial swirler of the combined swirler should be increased to increase the temperature value

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“…[20][21][22] After that, scholars introduced flow and combustion into the combustion link of heating furnace based on this model and achieved good results in practice. [23][24][25] The efficiency of steel heating furnace was improved by Han et al 23 using the numerical simulation method, when oxygen fuel combustion was used instead of air-fuel combustion. They found that oxy-fuel combustion gave an approximately 50% enhancement in efficiency compared to that in air-fuel combustion.…”

Section: Introductionmentioning

confidence: 99%

“…The results were presented by Huang et al 24 on flow field using numerical simulations and on global flame signatures, temperature/ species distribution, and exhaust emissions using experiments. The effect of inlet air swirl number of a methane-air diffusion flame on dynamic flow behavior, temperature, and radiation heat flux distribution was investigated by Hosseini et al 25 using ANSYS FLUENT CFD code. Their research showed that the elevating swirl number of the inlet air from…”

Section: Introductionmentioning

confidence: 99%