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    Laminar Burning Velocities of Formic Acid and Formic Acid/Hydrogen Flames: An Experimental and Modeling Study

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    Type
    Article
    Authors
    Osipova, K.N. cc
    Sarathy, Mani cc
    Korobeinichev, Oleg P.
    Shmakov, A.G. cc
    KAUST Department
    Chemical Engineering Program
    Clean Combustion Research Center
    Combustion and Pyrolysis Chemistry (CPC) Group
    Physical Science and Engineering (PSE) Division
    Date
    2021-01-05
    Online Publication Date
    2021-01-05
    Print Publication Date
    2021-01-21
    Embargo End Date
    2022-01-05
    Submitted Date
    2020-11-12
    Permanent link to this record
    http://hdl.handle.net/10754/666840
    
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    Abstract
    Laminar 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.
    Citation
    Osipova, 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
    Sponsors
    The 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.
    Publisher
    American Chemical Society (ACS)
    Journal
    Energy & Fuels
    DOI
    10.1021/acs.energyfuels.0c03818
    Additional Links
    https://pubs.acs.org/doi/10.1021/acs.energyfuels.0c03818
    ae974a485f413a2113503eed53cd6c53
    10.1021/acs.energyfuels.0c03818
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Chemical Engineering Program; Clean Combustion Research Center

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