• Aleksandar Erić, Laboratory for Thermal Engineering and Energy, Vinča Institute of Nuclear Sciences, Serbia
  • Dragoljub Dakić, Laboratory for Thermal Engineering and Energy, Vinča Institute of Nuclear Sciences, Serbia
  • Stevan Đ Nemoda, Laboratory for Thermal Engineering and Energy, Vinča Institute of Nuclear Sciences, Serbia
  • Mirko Komatina, Faculty of Mechanical Engineering, University of Belgrade, Serbia
  • Dejan Đurović, Laboratory for Thermal Engineering and Energy, Vinča Institute of Nuclear Sciences, Serbia
  • Andrijana D. Stojanović, Laboratory for Thermal Engineering and Energy, Vinča Institute of Nuclear Sciences, Serbia

Experimental determination of the balled soya residue permeability

  • Biomass as the most important renewable energy source in our country has also significant advantages from the aspect of environment protection. The later is because its use does not increase the concentration of carbon dioxide in the atmosphere, what is completely in accordance with the tendencies of the signatory countries of the Kyoto Agreement, including the Republic of Serbia. Accordingly, a group of associates of the Laboratory for Thermal Engineering and Energy of the Vinča Institute of Nuclear Sciences, Belgrade, a large number of years has invested huge efforts into promoting the use of agricultural waste biomass. These efforts finished with the development of 1.5 MW power boiler combustion balled soybean residue for 1 ha heating greenhouses in the Agricultural complex Belgrade. For purposes of defining the thermophysical properties of fuel (balled soybean residue), which are of great importance for the comprehensive understanding and prediction of the combustion process, this work has been shown experimental determination of the permeability coefficients in Forchheimer's equation which presents the pressure drop through porous media. Coefficients were determined to match the viscous and inertia terms of the general Forchheimer's equation. Experimental research include influence of porosity on permeability analysis, and accordingly, the semi-empirical dependence of these coefficients of porosity has been given. In addition, the paper also has discussed the influence of humidity on the permeability of biomass, and the dependence on moisture and porosity, as well. The determination of permeability parameters, and their dependence of the relevant factors (porosity and humidity), is the starting base for the further study of the combustion process kinetics under real conditions, what is very important for the defining combustion chamber construction features.
  • Keywords
    soya residue, combustion, permeability, Forchheimer equation
  • Pages
    143 - 151
  • Submitted
    02/20/2010
  • Accepted
    03/08/2010
  • UDC
    662.637:532.546
  • BIBLID
    0350-218X, 36 (2010), 1, 143-151
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