Next Article in Journal
Performance of a Polymer Flood with Shear-Thinning Fluid in Heterogeneous Layered Systems with Crossflow
Next Article in Special Issue
Removal and Conversion of Tar in Syngas from Woody Biomass Gasification for Power Utilization Using Catalytic Hydrocracking
Previous Article in Journal
Improved Bagging Algorithm for Pattern Recognition in UHF Signals of Partial Discharges
Previous Article in Special Issue
Time to Substitute Wood Bioenergy for Nuclear Power in Japan
Energies 2011, 4(7), 1102-1111; doi:10.3390/en4071102

Combustion of Corn Stover Bales in a Small 146-kW Boiler

*  and
Agriculture and Agri-Food Canada, Soils and Crops Research and Development Centre, 2560 Hochelaga Blvd, Quebec City, QC G1V 2J3, Canada
* Author to whom correspondence should be addressed.
Received: 1 June 2011 / Revised: 18 July 2011 / Accepted: 19 July 2011 / Published: 22 July 2011
(This article belongs to the Special Issue Biomass and Biofuels)
Download PDF [286 KB, uploaded 17 March 2015]


Spring harvested corn stover was used for direct combustion in a 146 kW dual chamber boiler designed for wood logs. Stover had a very low moisture content (6.83 ± 0.17%), a gross calorific value (GCV) of 18.57 MJ/kg of dry matter (±0.32 MJ/kg DM) and an ash content of 5.88% (±1.15%). Small stover bales (8.83 ± 0.90 kg) were placed manually in the upper combustion chamber at a rate of 10.5 to 12.8 kg/h over a 24-h period, with three replications, and compared to a control wood combustion trial (12.1 kg/h during 24 h). The overall heat transfer efficiency for stover was lower than for wood (57% vs. 77%). Stover bales produced on average 7.5% ash which included about 2% of unburned residues while wood produced 1.7% ash. CO gas emissions averaged 1324 mg/m³ for stover (118 mg/m³ for wood). The corn stover showed a good calorific potential, but it would have to be densified and the boiler should be modified to improve airflow, completeness of combustion and handling of the large amount of ash formed.
Keywords: corn stover; handling; combustion; ash; emissions; heat recovery; batch-fired boiler corn stover; handling; combustion; ash; emissions; heat recovery; batch-fired boiler
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Share & Cite This Article

Further Mendeley | CiteULike
Export to BibTeX |
MDPI and ACS Style

Morissette, R.; Savoie, P.; Villeneuve, J. Combustion of Corn Stover Bales in a Small 146-kW Boiler. Energies 2011, 4, 1102-1111.

View more citation formats

Related Articles

Article Metrics

For more information on the journal, click here


Cited By

[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert