Ignition delay time and H2O measurements during methanol oxidation behind reflected shock waves.
Saved in:
| Title: | Ignition delay time and H2O measurements during methanol oxidation behind reflected shock waves. |
|---|---|
| Authors: | Pinzón, L.T.1 (AUTHOR), Mathieu, O.1 (AUTHOR) olivier.mathieu@tamu.edu, Mulvihill, C.R.1 (AUTHOR), Schoegl, I.2 (AUTHOR), Petersen, E.L.1 (AUTHOR) |
| Source: | Combustion & Flame. May2019, Vol. 203, p143-156. 14p. |
| Subjects: | Shock waves, Oxidation of methanol, Shock tubes, Time measurements, Princeton University, Chemical kinetics |
| Abstract: | Abstract To improve detailed chemical kinetics models, the oxidation of methanol was investigated behind reflected shock waves in shock tubes. Ignition delay times of methanol–air mixtures, with Ar as diluent, were studied between 940 and 1540 K in a heated shock tube, for pressures up to 14.9 atm and for equivalence ratios of 0.5, 1.0, and 2.0. Water profiles were measured by utilizing a laser absorption technique in the 1350-to-1600-K temperature range, at an average pressure of 1.3 atm and for similar equivalence ratios. The present study shows the ignition delay times of methanol to be in very good agreement with results from the literature (Fieweger et al., 1997), whereas the other conditions have never been investigated before. The ignition delay time data are also in good agreement with modern detailed kinetics mechanisms such as the AramcoMech 3.0 model. The water time-history profiles were modeled using well-known literature mechanisms. Discrepancies were observed between these kinetics mechanisms, and poor predictions were observed for the lower temperatures investigated. Sensitivity and rate-of-production analyses were performed using 3 literature mechanisms (namely, AramcoMech 3.0, Princeton, and JetSurfII). Discrepancies were found among the models when predicting important reactions dominating the oxidation of methanol as well as the rate-of-production of H 2 O. [ABSTRACT FROM AUTHOR] |
| Copyright of Combustion & Flame is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 135577207 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Ignition delay time and H2O measurements during methanol oxidation behind reflected shock waves. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Pinzón%2C+L%2ET%2E%22">Pinzón, L.T.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Mathieu%2C+O%2E%22">Mathieu, O.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> olivier.mathieu@tamu.edu</i><br /><searchLink fieldCode="AR" term="%22Mulvihill%2C+C%2ER%2E%22">Mulvihill, C.R.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Schoegl%2C+I%2E%22">Schoegl, I.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Petersen%2C+E%2EL%2E%22">Petersen, E.L.</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Combustion+%26+Flame%22">Combustion & Flame</searchLink>. May2019, Vol. 203, p143-156. 14p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Shock+waves%22">Shock waves</searchLink><br /><searchLink fieldCode="DE" term="%22Oxidation+of+methanol%22">Oxidation of methanol</searchLink><br /><searchLink fieldCode="DE" term="%22Shock+tubes%22">Shock tubes</searchLink><br /><searchLink fieldCode="DE" term="%22Time+measurements%22">Time measurements</searchLink><br /><searchLink fieldCode="DE" term="%22Princeton+University%22">Princeton University</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+kinetics%22">Chemical kinetics</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract To improve detailed chemical kinetics models, the oxidation of methanol was investigated behind reflected shock waves in shock tubes. Ignition delay times of methanol–air mixtures, with Ar as diluent, were studied between 940 and 1540 K in a heated shock tube, for pressures up to 14.9 atm and for equivalence ratios of 0.5, 1.0, and 2.0. Water profiles were measured by utilizing a laser absorption technique in the 1350-to-1600-K temperature range, at an average pressure of 1.3 atm and for similar equivalence ratios. The present study shows the ignition delay times of methanol to be in very good agreement with results from the literature (Fieweger et al., 1997), whereas the other conditions have never been investigated before. The ignition delay time data are also in good agreement with modern detailed kinetics mechanisms such as the AramcoMech 3.0 model. The water time-history profiles were modeled using well-known literature mechanisms. Discrepancies were observed between these kinetics mechanisms, and poor predictions were observed for the lower temperatures investigated. Sensitivity and rate-of-production analyses were performed using 3 literature mechanisms (namely, AramcoMech 3.0, Princeton, and JetSurfII). Discrepancies were found among the models when predicting important reactions dominating the oxidation of methanol as well as the rate-of-production of H 2 O. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Combustion & Flame is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=135577207 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.combustflame.2019.01.036 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 14 StartPage: 143 Subjects: – SubjectFull: Shock waves Type: general – SubjectFull: Oxidation of methanol Type: general – SubjectFull: Shock tubes Type: general – SubjectFull: Time measurements Type: general – SubjectFull: Princeton University Type: general – SubjectFull: Chemical kinetics Type: general Titles: – TitleFull: Ignition delay time and H2O measurements during methanol oxidation behind reflected shock waves. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Pinzón, L.T. – PersonEntity: Name: NameFull: Mathieu, O. – PersonEntity: Name: NameFull: Mulvihill, C.R. – PersonEntity: Name: NameFull: Schoegl, I. – PersonEntity: Name: NameFull: Petersen, E.L. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 05 Text: May2019 Type: published Y: 2019 Identifiers: – Type: issn-print Value: 00102180 Numbering: – Type: volume Value: 203 Titles: – TitleFull: Combustion & Flame Type: main |
| ResultId | 1 |
