Laminar Burning Velocities of Formic Acid and Formic Acid/Hydrogen Flames: An Experimental and Modeling Study
KAUST DepartmentChemical Engineering Program
Clean Combustion Research Center
Combustion and Pyrolysis Chemistry (CPC) Group
Physical Science and Engineering (PSE) Division
Online Publication Date2021-01-05
Print Publication Date2021-01-21
Embargo End Date2022-01-05
Permanent link to this recordhttp://hdl.handle.net/10754/666840
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AbstractLaminar flame speed of formic acid and formic acid/hydrogen (4/1) flames was studied both experimentally and numerically. Experiments with flames of pure formic acid were performed at temperatures of 373 and 423 K, while for formic acid/hydrogen flames the temperature value was 368 K. All of the experiments were performed under atmospheric pressure and at an equivalence ratio ranging from 0.5 to 1.5. To measure the laminar flame speed, the heat flux balance technique was applied. Three detailed chemical-kinetic mechanisms were tested on experimental data. Experiments showed that addition of 20% of hydrogen increases the laminar burning velocity of formic acid, for example, at around 1.5 for stoichiometric flames. The comparison of experimental and numerical data showed that all models tend to overestimate laminar burning velocities of studied flames, especially in the case of rich flames. The obtained results indicate that further improvement of existing chemical-kinetic models of formic acid oxidation is highly required.
CitationOsipova, K. N., Sarathy, S. M., Korobeinichev, O. P., & Shmakov, A. G. (2021). Laminar Burning Velocities of Formic Acid and Formic Acid/Hydrogen Flames: An Experimental and Modeling Study. Energy & Fuels. doi:10.1021/acs.energyfuels.0c03818
SponsorsThe reported study was funded by RFBR under project No.20-33-90163. The research at King Abdullah University of Science and Technology (KAUST) was supported by Saudi Aramco.
PublisherAmerican Chemical Society (ACS)
JournalEnergy & Fuels