Part-load performance of direct-firing and co-firing of coal and biomass in a power generation system integrated with a CO2 capture and compression system

Hdl Handle:
http://hdl.handle.net/10034/620632
Title:
Part-load performance of direct-firing and co-firing of coal and biomass in a power generation system integrated with a CO2 capture and compression system
Authors:
Ali, Usman; Akram, Muhammad; Font Palma, Carolina ( 0000-0003-1416-4244 ) ; Ingham, Derek B.; Pourkashanian, Mohamed
Abstract:
Bioenergy with Carbon Capture and Storage (BECCS) is recognised as a key technology to mitigate CO2 emissions and achieve stringent climate targets due to its potential for negative emissions. However, the cost for its deployment is expected to be higher than for fossil-based power plants with CCS. To help in the transition to fully replace fossil fuels, co-firing of coal and biomass provide a less expensive means. Therefore, this work examines the co-firing at various levels in a pulverised supercritical power plant with post-combustion CO2 capture, using a fully integrated model developed in Aspen Plus. Co-firing offers flexibility in terms of the biomass resources needed. This work also investigates flexibility within operation. As a result, the performance of the power plant at various part-loads (40%, 60% and 80%) is studied and compared to the baseline at 100%, using a constant fuel flowrate. It was found that the net power output and net efficiency decrease when the biomass fraction increases for constant heat input and constant fuel flow rate cases. At constant heat input, more fuel is required as the biomass fraction is increased; whilst at constant fuel input, derating occurs, e.g. 30% derating of the power output capacity at firing 100% biomass compared to 100% coal. Co-firing of coal and biomass resulted in substantial power derating at each part-load operation.
Affiliation:
University of Sheffield; University of Chester; University of Engineering and Technology
Citation:
Ali, U., Akram, M., Font-Palma, C., Ingham, D. B., & Pourkashanian, M. (2017). Part-load performance of direct-firing and co-firing of coal and biomass in a power generation system integrated with a CO2 capture and compression system. Fuel, 210, 873-884. https://doi.org/10.1016/j.fuel.2017.09.023
Publisher:
Elsevier
Journal:
Fuel
Publication Date:
18-Sep-2017
URI:
http://hdl.handle.net/10034/620632
DOI:
10.1016/j.fuel.2017.09.023
Additional Links:
http://www.sciencedirect.com/science/article/pii/S0016236117311316?via%3Dihub
Type:
Article
Language:
en
EISSN:
1873-7153
Appears in Collections:
Chemical Engineering

Full metadata record

DC FieldValue Language
dc.contributor.authorAli, Usmanen
dc.contributor.authorAkram, Muhammaden
dc.contributor.authorFont Palma, Carolinaen
dc.contributor.authorIngham, Derek B.en
dc.contributor.authorPourkashanian, Mohameden
dc.date.accessioned2017-09-26T15:43:09Z-
dc.date.available2017-09-26T15:43:09Z-
dc.date.issued2017-09-18-
dc.identifier.citationAli, U., Akram, M., Font-Palma, C., Ingham, D. B., & Pourkashanian, M. (2017). Part-load performance of direct-firing and co-firing of coal and biomass in a power generation system integrated with a CO2 capture and compression system. Fuel, 210, 873-884. https://doi.org/10.1016/j.fuel.2017.09.023en
dc.identifier.doi10.1016/j.fuel.2017.09.023-
dc.identifier.urihttp://hdl.handle.net/10034/620632-
dc.description.abstractBioenergy with Carbon Capture and Storage (BECCS) is recognised as a key technology to mitigate CO2 emissions and achieve stringent climate targets due to its potential for negative emissions. However, the cost for its deployment is expected to be higher than for fossil-based power plants with CCS. To help in the transition to fully replace fossil fuels, co-firing of coal and biomass provide a less expensive means. Therefore, this work examines the co-firing at various levels in a pulverised supercritical power plant with post-combustion CO2 capture, using a fully integrated model developed in Aspen Plus. Co-firing offers flexibility in terms of the biomass resources needed. This work also investigates flexibility within operation. As a result, the performance of the power plant at various part-loads (40%, 60% and 80%) is studied and compared to the baseline at 100%, using a constant fuel flowrate. It was found that the net power output and net efficiency decrease when the biomass fraction increases for constant heat input and constant fuel flow rate cases. At constant heat input, more fuel is required as the biomass fraction is increased; whilst at constant fuel input, derating occurs, e.g. 30% derating of the power output capacity at firing 100% biomass compared to 100% coal. Co-firing of coal and biomass resulted in substantial power derating at each part-load operation.en
dc.language.isoenen
dc.publisherElsevieren
dc.relation.urlhttp://www.sciencedirect.com/science/article/pii/S0016236117311316?via%3Dihuben
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectCo-firingen
dc.subjectBECCSen
dc.subjectPost-combustionen
dc.titlePart-load performance of direct-firing and co-firing of coal and biomass in a power generation system integrated with a CO2 capture and compression systemen
dc.typeArticleen
dc.identifier.eissn1873-7153-
dc.contributor.departmentUniversity of Sheffield; University of Chester; University of Engineering and Technologyen
dc.identifier.journalFuelen
dc.date.accepted2017-09-07-
or.grant.openaccessYesen
rioxxterms.funderUnfundeden
rioxxterms.identifier.projectUnfundeden
rioxxterms.versionAMen
rioxxterms.licenseref.startdate2019-09-18-
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