TY - JOUR
T1 - Development of laminar burning velocity measurement system in premixed flames with hydrogen-content syngas or strong oxidizer conditions in a slot burner
AU - Li, Yueh Heng
AU - Liang, Jin Wei
AU - Lin, Hung Ju
N1 - Funding Information:
Financial support for this work was provided by the Ministry of Science and Technology (Republic of China, Taiwan) under grant numbers MOST 106-2923-E-006-003-MY3, MOST 108-2628-E-006-008-MY3, and MOST 109-2221-E-006-037-MY3. The authors wish to thank Dr. Guan-Bang Chen for numerical assistance. Computer time and numerical packages provided by the National Center for High-Performance Computing, Taiwan (NCHC Taiwan), are gratefully acknowledged.
Publisher Copyright:
© 2022 IGI Global. All rights reserved.
PY - 2022
Y1 - 2022
N2 - This study presents the experimental determination of laminar burning velocity for critical premixed flames with multiple fuels or strong oxidizers. Experiments were conducted with a slot burner under methane/air, methane/nitrous oxide, and syngas (CH4/CO/H2)/air premixed flames conditions with varying equivalence ratios from 0.8 to 1.4. With the flame surface area determined from the Schlieren measurement system and stretch effect corrected by Markstein length, unstretched laminar burning velocity can be garnered according to the conservation of mass. First, the experimental results of methane/air premixed flame velocities were validated by comparing with one-dimensional unstretched burning velocities through numerical simulations with GRI 3.0 mechanism. The experimental results in the equivalence ratio ranging from 0.85 to 1.2 demonstrated errors less than 3.8%. Then, the validated burning velocity measuring techniques were implemented under methane/nitrous oxide and syngas/air premixed flame conditions. Finally, appropriate chemical mechanisms, such as USM or UGM, can be validated for the numerical simulation of critical premixed flames via this proposed laminar burning velocity measuring technique.
AB - This study presents the experimental determination of laminar burning velocity for critical premixed flames with multiple fuels or strong oxidizers. Experiments were conducted with a slot burner under methane/air, methane/nitrous oxide, and syngas (CH4/CO/H2)/air premixed flames conditions with varying equivalence ratios from 0.8 to 1.4. With the flame surface area determined from the Schlieren measurement system and stretch effect corrected by Markstein length, unstretched laminar burning velocity can be garnered according to the conservation of mass. First, the experimental results of methane/air premixed flame velocities were validated by comparing with one-dimensional unstretched burning velocities through numerical simulations with GRI 3.0 mechanism. The experimental results in the equivalence ratio ranging from 0.85 to 1.2 demonstrated errors less than 3.8%. Then, the validated burning velocity measuring techniques were implemented under methane/nitrous oxide and syngas/air premixed flame conditions. Finally, appropriate chemical mechanisms, such as USM or UGM, can be validated for the numerical simulation of critical premixed flames via this proposed laminar burning velocity measuring technique.
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U2 - 10.1016/j.csite.2022.102162
DO - 10.1016/j.csite.2022.102162
M3 - Article
AN - SCOPUS:85131784761
SN - 2214-157X
VL - 35
JO - Case Studies in Thermal Engineering
JF - Case Studies in Thermal Engineering
M1 - 102162
ER -