Conference proceeding
Numerical Modeling of Co-Firing Chunk Coal and Oat Hulls in a Stoker Boiler
Volume 4: Energy Systems Analysis, Thermodynamics and Sustainability; Combustion Science and Engineering; Nanoengineering for Energy, Parts A and B, Vol.4, pp.1551-1559
ASME 2011 International Mechanical Engineering Congress and Exposition, Denver, Colorado, USA, Nov. 11 - 17, 2011
01/01/2011
DOI: 10.1115/IMECE2011-62807
Abstract
The current study presents a numerical study of co-firing chunk coal and one kind of light weight biomass, oat hulls, in a stoker boiler. First, a standard combustion model was applied to simulate coal combustion in a real size three dimensional boiler; the results were compared with the temperatures measured at different locations of the stoker boiler to assess the accuracy of heat sink and heat transfer model. Once a good accuracy was achieved, a devolatilization model for oat hulls was derived from experimental data and was matched with this combustion model to simulate combustion in a co-firing stoker boiler. The results showed that light biomass burns in suspension, similar to pulverized coal by following the air flow. Also, the peak temperature inside the furnace inversely varies with the increase of co-firing percentage of oat hulls. This numerical study reveals thermal and economic potential of using unprocessed light weight biomass on the existing combustion facility.
Details
- Title: Subtitle
- Numerical Modeling of Co-Firing Chunk Coal and Oat Hulls in a Stoker Boiler
- Creators
- Xinhui Zhang - University of IowaMohsen Ghamari - University of IowaAlbert Ratner - University of Iowa
- Resource Type
- Conference proceeding
- Publication Details
- Volume 4: Energy Systems Analysis, Thermodynamics and Sustainability; Combustion Science and Engineering; Nanoengineering for Energy, Parts A and B, Vol.4, pp.1551-1559
- Conference
- ASME 2011 International Mechanical Engineering Congress and Exposition, Denver, Colorado, USA, Nov. 11 - 17, 2011
- DOI
- 10.1115/IMECE2011-62807
- Publisher
- ASMEDC
- Language
- English
- Date published
- 01/01/2011
- Academic Unit
- Mechanical Engineering
- Record Identifier
- 9984196611902771
Metrics
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