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dc.contributor.authorTingas, Alexandros
dc.contributor.authorKyritsis, Dimitrios C.
dc.contributor.authorGoussis, Dimitris A.
dc.date.accessioned2019-03-14T14:13:12Z
dc.date.available2019-03-14T14:13:12Z
dc.date.issued2018-12-12
dc.identifier.citationTingas E-A, Kyritsis DC, Goussis DA (2019) H2/Air Autoignition Dynamics around the Third Explosion Limit. Journal of Energy Engineering 145: 04018074. Available: http://dx.doi.org/10.1061/(ASCE)EY.1943-7897.0000588.
dc.identifier.issn0733-9402
dc.identifier.issn1943-7897
dc.identifier.doi10.1061/(ASCE)EY.1943-7897.0000588
dc.identifier.urihttp://hdl.handle.net/10754/631595
dc.description.abstractThis paper examines the influence of wall reactions on the generation of the explosive time scale that characterizes ignition delay around the third explosion limit of a stoichiometric H2/air homogeneous mixture. The only wall reactions exhibiting a sizeable influence are HO→HO(w) and HO→HO(w) - in both cases opposing the ignition process. The opposing influence of the former wall reaction complements that of HO→HO+O in opposing HO+H→H+HO, which promotes ignition. However, the combined influence of these three reactions is not practically affected when the third explosion limit is crossed by increasing the initial pressure for a given initial temperature. The latter wall reaction opposes OH(+M)+HO(+M), which also promotes ignition. The combined influence of these reactions increases substantially as the third explosion limit is crossed, leading to significantly lower ignition delays. It is shown that around the third explosion limit the temperature has a strong influence on the explosive mode that leads to ignition. This influence is stronger when the wall reactions are accounted for.
dc.publisherAmerican Society of Civil Engineers (ASCE)
dc.relation.urlhttps://ascelibrary.org/doi/full/10.1061/%28ASCE%29EY.1943-7897.0000588
dc.subjectMixtures
dc.subjectExplosions
dc.subjectTemperature effects
dc.subjectHomogeneity
dc.subjectWalls
dc.titleH2/Air Autoignition Dynamics around the Third Explosion Limit
dc.typeArticle
dc.contributor.departmentClean Combustion Research Center
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalJournal of Energy Engineering
dc.contributor.institutionDept. of Mechanics, School of Applied Mathematical and Physical Sciences, National Technical Univ., Athens 15780, Greece
dc.contributor.institutionDept. of Mechanical Engineering, Khalifa Univ. of Science and Technology, Abu Dhabi 127788, United Arab Emirates.
kaust.personTingas, Alexandros
dc.date.published-online2018-12-12
dc.date.published-print2019-02


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