Hydrogen addition effects on high intensity distributed combustion

Ahmed E.E. Khalil and Ashwani K. Gupta

Applied Energy, 2013, vol. 104, issue C, 78 pages

Abstract: Distributed combustion provides significant improvements under high intensity conditions characteristic of gas turbine to provide uniform thermal field (improved pattern factor), ultra-low pollution, enhanced stability and higher efficiency. Mixing between fresh air/fuel stream with hot reactive species is critical to result in distributed reactions and spontaneous ignition. Hydrogen enrichment of fuel is examined with emphasis on combustion stability and emissions under swirling flow conditions. Results are presented on the role of hydrogen enrichment to methane (4–15% by mass, 25–58.5% by volume) on the combustion characteristics under fuel-lean conditions. CO emission was substantially reduced with hydrogen enrichment, with minimal effect on NO emission under premixed combustion. Hydrogen addition extended the lean operational limits of the combustor with stable combustion and no flame fluctuations or flashback. Results obtained on pollutants emission and flame marking via OH* chemiluminescence revealed near volume distributed high intensity combustion with ultra-low emission (<3PPM NO and <9PPM CO) and high performance at lower equivalence ratio. Hybrid numerical–experimental approach can provide more realistic prediction of NO emission from hydrogen enriched methane combustion.

Keywords: Colorless distributed combustion (CDC); Ultra low NOx emisison; High intensity gas turbine combustion; Hydrogen enriched methane fuel combustion; High temperature air combustion (search for similar items in EconPapers)
Date: 2013
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (11)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0306261912007908
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:104:y:2013:i:c:p:71-78

Ordering information: This journal article can be ordered from
http://www.elsevier.com/wps/find/journaldescription.cws_home/405891/bibliographic
http://www.elsevier. ... 405891/bibliographic

DOI: 10.1016/j.apenergy.2012.11.004

Access Statistics for this article

Applied Energy is currently edited by J. Yan

More articles in Applied Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().