Shock-tube studies of Sarin surrogates.
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| Title: | Shock-tube studies of Sarin surrogates. |
|---|---|
| Authors: | Mathieu, O.1 olivier.mathieu@tamu.edu, Kulatilaka, W. D.1, Petersen, E. L.1 |
| Source: | Shock Waves. Mar2019, Vol. 29 Issue 3, p441-449. 9p. |
| Abstract: | To further refine the existing high-temperature combustion chemistry mechanisms of Sarin surrogates or to develop new ones, the ignition delay times of mixtures containing various Sarin surrogates have been studied in the authors' laboratory, namely dimethyl-methylphosphonate, diethyl-methylphosphonate (DEMP), and triethylphosphate, and the results are compared for the first time herein. They were each measured in a heated shock tube, with the DEMP-related ignition delay times being the new data reported in this paper. The Sarin surrogates were studied in neat mixtures with oxygen or seeded to baseline mixtures of hydrogen or methane at around 1.5 atm. Noticeable differences were observed between the ignition delay times of the three simulants, whether sole or mixed with a fuel. Comparisons of OH* time histories obtained from each surrogate highlight the similarities and differences in chemical structure among the different compounds. In mixtures with oxygen and Ar, the three surrogates present similar ignition delay times below 1380 K, whereas the ignition delay time results rapidly diverge above this temperature. When the surrogates were added into H2/O2 or CH4/O2 mixtures, large changes in the reactivity of the mixtures were observed. These changes in reactivity are however dependent on the surrogate, for each fuel investigated. [ABSTRACT FROM AUTHOR] |
| Copyright of Shock Waves is the property of Springer Nature 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 |
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| Header | DbId: egs DbLabel: Engineering Source An: 134653210 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Shock-tube studies of Sarin surrogates. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Mathieu%2C+O%2E%22">Mathieu, O.</searchLink><relatesTo>1</relatesTo><i> olivier.mathieu@tamu.edu</i><br /><searchLink fieldCode="AR" term="%22Kulatilaka%2C+W%2E+D%2E%22">Kulatilaka, W. D.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Petersen%2C+E%2E+L%2E%22">Petersen, E. L.</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Shock+Waves%22">Shock Waves</searchLink>. Mar2019, Vol. 29 Issue 3, p441-449. 9p. – Name: Abstract Label: Abstract Group: Ab Data: To further refine the existing high-temperature combustion chemistry mechanisms of Sarin surrogates or to develop new ones, the ignition delay times of mixtures containing various Sarin surrogates have been studied in the authors' laboratory, namely dimethyl-methylphosphonate, diethyl-methylphosphonate (DEMP), and triethylphosphate, and the results are compared for the first time herein. They were each measured in a heated shock tube, with the DEMP-related ignition delay times being the new data reported in this paper. The Sarin surrogates were studied in neat mixtures with oxygen or seeded to baseline mixtures of hydrogen or methane at around 1.5 atm. Noticeable differences were observed between the ignition delay times of the three simulants, whether sole or mixed with a fuel. Comparisons of OH* time histories obtained from each surrogate highlight the similarities and differences in chemical structure among the different compounds. In mixtures with oxygen and Ar, the three surrogates present similar ignition delay times below 1380 K, whereas the ignition delay time results rapidly diverge above this temperature. When the surrogates were added into H2/O2 or CH4/O2 mixtures, large changes in the reactivity of the mixtures were observed. These changes in reactivity are however dependent on the surrogate, for each fuel investigated. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Shock Waves is the property of Springer Nature 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.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s00193-018-0841-1 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 9 StartPage: 441 Titles: – TitleFull: Shock-tube studies of Sarin surrogates. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Mathieu, O. – PersonEntity: Name: NameFull: Kulatilaka, W. D. – PersonEntity: Name: NameFull: Petersen, E. L. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 03 Text: Mar2019 Type: published Y: 2019 Identifiers: – Type: issn-print Value: 09381287 Numbering: – Type: volume Value: 29 – Type: issue Value: 3 Titles: – TitleFull: Shock Waves Type: main |
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