Numerical study of flame aerodynamic in rotary kilns

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HAZRATI R.; MAZAHERI K.; Ebrahimi Fordoei E.

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Paper Information

Journal: JOURNAL OF MECHANICAL ENGINEERING Year:2019 | Volume:49 | Issue:3 (88) Page(s): 117-126

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Title

Numerical study of flame aerodynamic in rotary kilns

Author(s)

HAZRATI R. | MAZAHERI K. | Ebrahimi Fordoei E. | Issue Writer Certificate

Keywords

Rotary kiln

Flame aerodynamic

Gravity acceleration

Radiation

Combustion air

Abstract

Rotary kilns have some applications in industrial due to high production capacity, uniform and extensive combustion. Rotary kiln performance not easy and despite of technology development, the problems exist in the filed from combustion them. Reasons of some problems are separate design of burner and kiln and inattention to coordination and harmony between them. According to in the present study, flame behavior has been studied under governed condition on the kiln and secondary air flow. In the first step, suitable methods and models are verified on the basis of benchmark problem due to lack of experimental data. Finally, Rotary kiln simulation done with realizable k-ε turbulence model, partially stirred reacting flow combustion model and P1 Radiation model. The present simulation done in OpenFOAM open source software by using reactingFOAM solver. Also in the present work, ability of applying Radiation model has been created with addition source term to energy equation and ability of applying rotation boundary condition has been created with addition source term to momentum equation. According to obtained results, applying of Gravity acceleration leading to deviation of flame to the upper wall. The results show that Radiation heat transfer is important in the governing condition on the problem. Finally, effect of excess air studied on the temperature distribution that obtained results show temperature of kiln and wall temperature kiln reduced with increasing of excess air percent in the investigation limit.

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APA: Copy

HAZRATI, R., MAZAHERI, K., & Ebrahimi Fordoei, E.. (2019). Numerical study of flame aerodynamic in rotary kilns. JOURNAL OF MECHANICAL ENGINEERING, 49(3 (88) ), 117-126. SID. https://sid.ir/paper/270036/en

Vancouver: Copy

HAZRATI R., MAZAHERI K., Ebrahimi Fordoei E.. Numerical study of flame aerodynamic in rotary kilns. JOURNAL OF MECHANICAL ENGINEERING[Internet]. 2019;49(3 (88) ):117-126. Available from: https://sid.ir/paper/270036/en

IEEE: Copy

R. HAZRATI, K. MAZAHERI, and E. Ebrahimi Fordoei, “Numerical study of flame aerodynamic in rotary kilns,” JOURNAL OF MECHANICAL ENGINEERING, vol. 49, no. 3 (88) , pp. 117–126, 2019, [Online]. Available: https://sid.ir/paper/270036/en

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