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3D-modelling of the radiative heat transfer in a rotary kiln for iron ore pellets production

Adrian Gunnarsson (Institutionen för energi och miljö, Energiteknik) ; Robert Johansson (Institutionen för energi och miljö, Energiteknik) ; Klas Andersson (Institutionen för energi och miljö, Energiteknik) ; Christian Fredriksson
Nordic Flame Days, 2015.10.06-2015.10.07, Helsingör (2015)
[Konferensbidrag, övrigt]

This paper presents work focused on the development, evaluation and use of a 3D-model for investigation of the radiative heat transfer in rotary kilns. The model applies the discrete-ordinates method to solve the radiative transfer equation considering emission, absorption and scattering of radiation by gas species and particles. The model uses input of temperature, particle distribution and gas composition in the radial, axial and angular directions. The model is compared with literature data and a 1D-model for validation. The model is tested in its capability to model radiative intensity using experimental data from a 400 kW rotary kiln test furnace and used to calculate the radiative heat flux to the wall using different temperature and particle loads as well as different fuels and fuel combinations. The results show that the 3D-model can be used to predict trends when operating conditions are changed.



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Denna post skapades 2016-01-12.
CPL Pubid: 230435

 

Institutioner (Chalmers)

Institutionen för energi och miljö, Energiteknik (2005-2017)

Ämnesområden

Energi
Hållbar utveckling
Energiteknik

Chalmers infrastruktur