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CHARACTERIZATION OF A HYDROGEN-BASED SYNTHETIC FUEL IN A SHOCK TUBE
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TitleCHARACTERIZATION OF A HYDROGEN-BASED SYNTHETIC FUEL IN A SHOCK TUBE
AuthorFlaherty, Troy
KeywordsSyngas
shock tube
ignition delay
chemical kinetics
AbstractShock-tube experiments were performed with syngas mixtures near atmospheric pressure with varying equivalence ratios behind reflected shock waves. Pressure and hydroxyl radical (OH*) emission traces were recorded and used to calculate ignition delay time for a single mixture at equivalence ratios of [phi ]=0.4, 0.7, 1.0, and 2.0 over a range of temperatures from 913-1803 K. The syngas mixture was tested at full concentration as well as with 98% dilution in Argon. The full concentration mixtures were used to compare ignition delay time measurements with the theoretical calculations obtained through the use of chemical kinetics modeling using the Davis et al. mechanism. The dilute mixtures were used to study the OH* emission profiles compared to those of the kinetics model. The model was in poor agreement with the experimental data especially at lower temperatures with an ignition delay difference of more than an order of magnitude. These ignition delay time data supplement the few existing data and are in relative agreement. The species profile comparison of OH* compared to the model also showed poor agreement, with the worst agreement at the highest temperatures. While the disagreements with ignition delay time and profile comparisons cannot be explained at this time, the data presented support other findings. The data provide additional information towards understanding this disagreement relative to syngas mixtures despite the relatively well known kinetics of the primary constituents Hydrogen and Carbon Monoxide.
AdviserKassab, Alain
PublisherUniversity of Central Florida
DegreeM.S.M.E.
Degree DisciplineDepartment of Mechanical, Materials and Aerospace Engineering
Degree GrantorEngineering and Computer Science
Degree ProgramMechanical Engineering MSME
Graduation Date2009-01-01
TypeMaster's thesis
Access LevelCampus - Allow Only UCF Community Access
Release Date2014-04-01
RepositoryUniversity Archives
Repository CollectionElectronic Theses and Dissertations
IdentifierCFE0002552
Access Linkhttp://purl.fcla.edu/fcla/etd/CFE0002552

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