Characteristics of Syngas Auto-ignition at High Pressure and Low Temperature Conditions with Thermal Inhomogeneities
dc.contributor.author | Pal, Pinaki | |
dc.contributor.author | Mansfield, Andrew B. | |
dc.contributor.author | Wooldridge, Margaret S. | |
dc.contributor.author | Im, Hong G. | |
dc.date.accessioned | 2015-06-10T11:16:48Z | |
dc.date.available | 2015-06-10T11:16:48Z | |
dc.date.issued | 2015-05-31 | |
dc.identifier.citation | Characteristics of Syngas Auto-ignition at High Pressure and Low Temperature Conditions with Thermal Inhomogeneities 2015, 66:1 Energy Procedia | |
dc.identifier.issn | 18766102 | |
dc.identifier.doi | 10.1016/j.egypro.2015.02.003 | |
dc.identifier.uri | http://hdl.handle.net/10754/556643 | |
dc.description.abstract | Effects 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.publisher | Elsevier BV | |
dc.relation.url | http://linkinghub.elsevier.com/retrieve/pii/S1876610215001034 | |
dc.rights | Archived with thanks to Energy Procedia, Under a Creative Commons license http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.subject | Strong and weak ignition | |
dc.subject | Spontaneous ignition | |
dc.subject | Deflagration | |
dc.subject | Auto-ignition | |
dc.subject | Syngas | |
dc.title | Characteristics of Syngas Auto-ignition at High Pressure and Low Temperature Conditions with Thermal Inhomogeneities | |
dc.type | Conference Paper | |
dc.contributor.department | Clean Combustion Research Center | |
dc.contributor.department | Computational Reacting Flow Laboratory (CRFL) | |
dc.contributor.department | Mechanical Engineering Program | |
dc.contributor.department | Physical Science and Engineering (PSE) Division | |
dc.identifier.journal | Energy Procedia | |
dc.conference.date | 2014-05-25 to 2014-05-30 | |
dc.conference.name | 23rd International Conference on the Application of Accelerators in Research and Industry, CAARI 2014 | |
dc.conference.location | San Antonio, TX, USA | |
dc.eprint.version | Publisher's Version/PDF | |
dc.contributor.institution | Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, United States | |
dc.contributor.institution | Department of Aerospace Engineering, University of Michigan, Ann Arbor, MI 48109, United States | |
kaust.person | Im, Hong G. | |
refterms.dateFOA | 2018-06-13T16:40:36Z | |
dc.date.published-online | 2015-05-31 | |
dc.date.published-print | 2015 |
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