A comprehensive biomass combustion model

J.M. Jones, M. Pourkashanian, A. Williams and D. Hainsworth

Renewable Energy, 2000, vol. 19, issue 1, 229-234

Abstract: A combustion model for wheat straw is discussed and compared to that of a bituminous coal, Pittsburgh No. 8. The input data into the combustion model for both cases were generated using the FG-DVC pyrolysis model, which had been validated in part experimentally. The combustion behaviour of the two fuels are investigated using a laminar flow CFD model of a drop-tube furnace. The results indicate that, because of the low calorific nature of the straw volatiles, the combustion takes place at a lower temperature, but with rapid ignition and rapid devolatilisation. The straw char is highly microporous with relatively high ash and oxygen contents; consequently, the burnout is quicker than the analogous coal char burnout.

Keywords: Biomass; Coal; Combustion model; CFD; Pyrolysis; Devolatilisation (search for similar items in EconPapers)
Date: 2000
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:19:y:2000:i:1:p:229-234

DOI: 10.1016/S0960-1481(99)00036-1

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