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Dual-pump Coherent anti-Stokes Raman scattering measurements in H2/CH4 Counterflow Flames

Conference · · AIAA SCITECH 2024 Forum
DOI:https://doi.org/10.2514/6.2024-2826· OSTI ID:2406156
 [1];  [2];  [2];  [3];  [2]
  1. Purdue University; Purdue University
  2. Purdue University
  3. Sangyo Gijutsu Sogo Kenkyujo Tsukuba Chuo
+ Show Author Affiliations

Temperature and major species concentration measurements are reported in a Williams Seshadri counterflow burner using dual-pump coherent anti-Stokes Raman scattering (DPCARS). Hencken burner H2/Air flames with equivalence ratio of 0.8-1.4 were used to characterize the accuracy of the system. The mean errors for temperature, XH2/XN2 mole fraction ratio, and XO2/XN2 mole fraction ratio are 1.0%, 14.7%, and 5.5%, respectively. The counterflow burner uses a CH4, H2, and N2 mixture as fuel and synthetic air as oxidizer. Measurements were performed along the counterflow burner central axis for two different fuel compositions: 4% H2/86% CH4/10% N2 and 87%H2/3% CH4/10% N2. The measured temperature and species mole fractions agree well with the 1-D opposed-flow diffusion flame simulation. One observation is that the fuel inlet temperature is higher than 300 K, which suggests the possibility of the stagnation plane residing closer to the fuel side. Lastly, these measurements provide valuable data for testing and validation of advanced 2-D flame models.

Research Organization:
University of Central Florida; Purdue University
Sponsoring Organization:
USDOE; USDOE Office of Fossil Energy (FE), Office of Clean Energy Systems (FE-22)
DOE Contract Number:
FE0032072
OSTI ID:
2406156
Journal Information:
AIAA SCITECH 2024 Forum, Journal Name: AIAA SCITECH 2024 Forum
Country of Publication:
United States
Language:
English

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conference January 2011
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