NUMERICAL SIMULATION AND EXPERIMENTAL ANALYSIS OF A NOVEL SMALL SCALE BIOMASS GRATE FIRING SYSTEM

Michael Eßl, Ramin Mehrabian Bardar, Ali SHIEHNEJADHESAR, Joachim Kelz, Sabine Feldmeier, Thomas Reiterer, Andres Anca-Couce, Robert Scharler

Research output: Contribution to conferencePosterResearch

Abstract

The presented grate firing system is a patented small scale screw burner, which is designed for high
fuel flexibility. This work focuses on the numerical modelling of the boiler via CFD simulations. The in-house
developed CFD models use an Euler – Lagrange approach to predict the thermal degradation of the fuel particles and
the subsequent gas-phase reactions. The CFD models are validated with experimental data from a representative
measurement campaign where the boiler is operated with softwood pellets and the composition of the flue gas is
measured in the primary and secondary combustion zone as well as the boiler outlet. The simulation results agree
well with the data acquired in the measurement campaigns.
Original languageEnglish
Publication statusPublished - 28 May 2019

Keywords

    Cite this

    NUMERICAL SIMULATION AND EXPERIMENTAL ANALYSIS OF A NOVEL SMALL SCALE BIOMASS GRATE FIRING SYSTEM. / Eßl, Michael; Mehrabian Bardar, Ramin; SHIEHNEJADHESAR, Ali; Kelz, Joachim; Feldmeier, Sabine; Reiterer, Thomas; Anca-Couce, Andres; Scharler, Robert.

    2019.

    Research output: Contribution to conferencePosterResearch

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    title = "NUMERICAL SIMULATION AND EXPERIMENTAL ANALYSIS OF A NOVEL SMALL SCALE BIOMASS GRATE FIRING SYSTEM",
    abstract = "The presented grate firing system is a patented small scale screw burner, which is designed for highfuel flexibility. This work focuses on the numerical modelling of the boiler via CFD simulations. The in-housedeveloped CFD models use an Euler – Lagrange approach to predict the thermal degradation of the fuel particles andthe subsequent gas-phase reactions. The CFD models are validated with experimental data from a representativemeasurement campaign where the boiler is operated with softwood pellets and the composition of the flue gas ismeasured in the primary and secondary combustion zone as well as the boiler outlet. The simulation results agreewell with the data acquired in the measurement campaigns.",
    keywords = "CFD simulation,, wood pellet, combustion, domestic appliances",
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    AU - Eßl, Michael

    AU - Mehrabian Bardar, Ramin

    AU - SHIEHNEJADHESAR, Ali

    AU - Kelz, Joachim

    AU - Feldmeier, Sabine

    AU - Reiterer, Thomas

    AU - Anca-Couce, Andres

    AU - Scharler, Robert

    PY - 2019/5/28

    Y1 - 2019/5/28

    N2 - The presented grate firing system is a patented small scale screw burner, which is designed for highfuel flexibility. This work focuses on the numerical modelling of the boiler via CFD simulations. The in-housedeveloped CFD models use an Euler – Lagrange approach to predict the thermal degradation of the fuel particles andthe subsequent gas-phase reactions. The CFD models are validated with experimental data from a representativemeasurement campaign where the boiler is operated with softwood pellets and the composition of the flue gas ismeasured in the primary and secondary combustion zone as well as the boiler outlet. The simulation results agreewell with the data acquired in the measurement campaigns.

    AB - The presented grate firing system is a patented small scale screw burner, which is designed for highfuel flexibility. This work focuses on the numerical modelling of the boiler via CFD simulations. The in-housedeveloped CFD models use an Euler – Lagrange approach to predict the thermal degradation of the fuel particles andthe subsequent gas-phase reactions. The CFD models are validated with experimental data from a representativemeasurement campaign where the boiler is operated with softwood pellets and the composition of the flue gas ismeasured in the primary and secondary combustion zone as well as the boiler outlet. The simulation results agreewell with the data acquired in the measurement campaigns.

    KW - CFD simulation,

    KW - wood pellet

    KW - combustion

    KW - domestic appliances

    M3 - Poster

    ER -