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A compact kinetic model for high temperature oxidation of MMA using DRGEPSA
Vasudevan Raghavan,
Published in Combustion Institute
2019
Abstract
Poly Methyl Methacrylate (PMMA) is a polymeric ester used in domestic and transport applications whose combustion characteristics must be studied for fire safety considerations. A skeletal kinetic model for its monomer MMA (90-95% of monomer units unzips from PMMA around 250oC) is essential to understand the flame spread rate and ignition in 2D or 3D geometries in view of the computational cost in handling a large number of species. In the present work, a well validated 88 species MMA kinetic model is reduced using DRGEPSA technique for combined 1-D premixed stabilized flame and freely propagating premixed flame configurations. Based on the targets and operating conditions, a 50 species skeletal model is obtained. The results obtained with the skeletal mechanism are validated with the master mechanism and experimental data for a species profiles in a premixed MMA laminar flat flame, laminar burning velocities and species profiles in a non-premixed MMA liquid pool counter flow diffusion flames. The results computed using the skeletal mechanism are in good agreement with the detailed model in all these configurations. The final reduced model consisting of 50 species and 320 reactions can be used in CFD codes such as FLUENT for further study of MMA combustion characteristics. © Asia-Pacific Conference on Combustion, ASPACC 2019.All right reserved.
About the journal
Journal12th Asia-Pacific Conference on Combustion, ASPACC 2019
PublisherCombustion Institute
Open AccessNo
Concepts (17)
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    Acrylic monomers
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    Combustion
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    Computational fluid dynamics
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    Esters
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    Kinetic parameters
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    Kinetic theory
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    Musculoskeletal system
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    Thermooxidation
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    Combustion characteristics
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    Computational costs
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    FLAME SPREAD RATE
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    Laminar burning velocity
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    LAMINAR FLAT FLAMES
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    Operating condition
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    Skeletal mechanism
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    TRANSPORT APPLICATIONS
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    Flame research