Show simple item record

dc.contributor.authorPal, Pinaki
dc.contributor.authorMansfield, Andrew B.
dc.contributor.authorWooldridge, Margaret S.
dc.contributor.authorIm, Hong G.
dc.date.accessioned2015-06-10T11:16:48Z
dc.date.available2015-06-10T11:16:48Z
dc.date.issued2015-05-31
dc.identifier.citationCharacteristics of Syngas Auto-ignition at High Pressure and Low Temperature Conditions with Thermal Inhomogeneities 2015, 66:1 Energy Procedia
dc.identifier.issn18766102
dc.identifier.doi10.1016/j.egypro.2015.02.003
dc.identifier.urihttp://hdl.handle.net/10754/556643
dc.description.abstractEffects of thermal inhomogeneities on syngas auto-ignition at high-pressure low-temperature conditions, relevant to gas turbine operation, are investigated using detailed one-dimensional numerical simulations. Parametric tests are carried out for a range of thermodynamic conditions (T = 890-1100 K, P = 3-20 atm) and composition (Ф = 0.1, 0.5). Effects of global thermal gradients and localized thermal hot spots are studied. In the presence of a thermal gradient, the propagating reaction front transitions from spontaneous ignition to deflagration mode as the initial mean temperature decreases. The critical mean temperature separating the two distinct auto-ignition modes is computed using a predictive criterion and found to be consistent with front speed and Damkohler number analyses. The hot spot study reveals that compression heating of end-gas mixture by the propagating front is more pronounced at lower mean temperatures, significantly advancing the ignition delay. Moreover, the compression heating effect is dependent on the domain size.
dc.publisherElsevier BV
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S1876610215001034
dc.rightsArchived with thanks to Energy Procedia, Under a Creative Commons license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectStrong and weak ignition
dc.subjectSpontaneous ignition
dc.subjectDeflagration
dc.subjectAuto-ignition
dc.subjectSyngas
dc.titleCharacteristics of Syngas Auto-ignition at High Pressure and Low Temperature Conditions with Thermal Inhomogeneities
dc.typeConference Paper
dc.contributor.departmentClean Combustion Research Center
dc.identifier.journalEnergy Procedia
dc.conference.date2014-05-25 to 2014-05-30
dc.conference.name23rd International Conference on the Application of Accelerators in Research and Industry, CAARI 2014
dc.conference.locationSan Antonio, TX, USA
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionDepartment of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, United States
dc.contributor.institutionDepartment of Aerospace Engineering, University of Michigan, Ann Arbor, MI 48109, United States
kaust.personIm, Hong G.
refterms.dateFOA2018-06-13T16:40:36Z


Files in this item

Thumbnail
Name:
1-s2.0-S1876610215001034-main.pdf
Size:
468.5Kb
Format:
PDF
Description:
Main article

This item appears in the following Collection(s)

Show simple item record