Ignition of Hydrogen–Air–Water Vapor Lean Mixtures Behind Shock Waves.
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| Title: | Ignition of Hydrogen–Air–Water Vapor Lean Mixtures Behind Shock Waves. |
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| Authors: | Krivosheyev, P. N.1 (AUTHOR) krivosheyev.pavlik@gmail.com, Kisel, Yu. S.1 (AUTHOR), Skilond', A. V.1 (AUTHOR), Avsyukevich, K. P.1,2 (AUTHOR), Tereza, A. M.3 (AUTHOR), Penyazkov, O. G.1 (AUTHOR) |
| Source: | Journal of Engineering Physics & Thermophysics. Jan2025, Vol. 98 Issue 1, p137-143. 7p. |
| Subjects: | Shock tubes, Shock waves, Chemical kinetics, Water vapor, Surface reactions |
| Abstract: | The ignition of lean mixtures of hydrogen with air and water vapor behind reflected shock waves was studied experimentally in the temperature range 947–1552 K at a pressure of 1 atm. Numerical simulation of the concentration profiles of the electron-excited OH* radical using several widely employed detailed kinetic mechanisms is performed. It is shown that the influence of water on the self-ignition of lean hydrogen–air mixtures at temperatures above 1050 K is insignificant. The discrepancy between the results of calculations and experimental data at temperatures below 1050 K is explained by the presence of small impurities formed in catalytic reactions on the surface. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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