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.
Skip Nav Destination
ASME 2011 International Mechanical Engineering Congress and Exposition
November 11–17, 2011
Denver, Colorado, USA
Conference Sponsors:
- ASME
ISBN:
978-0-7918-5490-7
PROCEEDINGS PAPER
Numerical Modeling of Co-Firing Chunk Coal and Oat Hulls in a Stoker Boiler Available to Purchase
Xinhui Zhang,
Xinhui Zhang
The University of Iowa, Iowa City, IA
Search for other works by this author on:
Mohsen Ghamari,
Mohsen Ghamari
The University of Iowa, Iowa City, IA
Search for other works by this author on:
Albert Ratner
Albert Ratner
The University of Iowa, Iowa City, IA
Search for other works by this author on:
Xinhui Zhang
The University of Iowa, Iowa City, IA
Mohsen Ghamari
The University of Iowa, Iowa City, IA
Albert Ratner
The University of Iowa, Iowa City, IA
Paper No:
IMECE2011-62807, pp. 1551-1559; 9 pages
Published Online:
August 1, 2012
Citation
Zhang, X, Ghamari, M, & Ratner, A. "Numerical Modeling of Co-Firing Chunk Coal and Oat Hulls in a Stoker Boiler." Proceedings of the ASME 2011 International Mechanical Engineering Congress and Exposition. Volume 4: Energy Systems Analysis, Thermodynamics and Sustainability; Combustion Science and Engineering; Nanoengineering for Energy, Parts A and B. Denver, Colorado, USA. November 11–17, 2011. pp. 1551-1559. ASME. https://doi.org/10.1115/IMECE2011-62807
Download citation file:
21
Views
Related Proceedings Papers
Related Articles
Fine Particulate Formation During Switchgrass/Coal Cofiring
J. Eng. Gas Turbines Power (July,2005)
Options for Biomass Utilization in Coal Fired Power Stations
J. Thermal Sci. Eng. Appl (December,2009)
Optimization of Co-Firing Burners
J. Thermal Sci. Eng. Appl (December,2016)
Related Chapters
Numerical Simulation of Pine Sawdust and Coal Co-Firing
Inaugural US-EU-China Thermophysics Conference-Renewable Energy 2009 (UECTC 2009 Proceedings)
Numerical Simulation Research on a Fixed Bed Gasifier
International Conference on Information Technology and Management Engineering (ITME 2011)
ASME Section VI: Recommended Rules for the Care and Operation of Heating Boilers
Companion Guide to the ASME Boiler & Pressure Vessel Codes, Volume 1 Sixth Edition