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| Modeling and analysis on flow characteristics for
a new type biomass pellet rotary burner |
| College of Mechanical and Electrical Engineering, Central South University of Forestry and Technology, Changsha, Hunan 410004, China |
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Abstract A new type of biomass pellet rotary burner was chosen as research object, and the geometrical model was established by Pro/E software. The fluid finite element model of biomass pellet rotary burner was meshed by unstructured mesh generation technique and preprocessed by Gambit software. Based on the kε turbulence model, the flow characteristics of rotary burner were simulated by Fluent software, and the effects of pressure distribution, velocity distribution and turbulent kinetic energy distribution in the rotary burner were analyzed. The results show that the pressure, velocity and turbulent kinetic energy of burner are increased with the increasing of wind speed at the inlet of burner, while the pressure, velocity and turbulence kinetic energy between burner inlet and rotary combustion chamber are greater than those in other areas. The maximum values are obtained at secondary air, and the pressure, velocity and turbulent kinetic energy distribution of rotary combustion chamber are uniformly distributed.
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2018, Vol. 39 
