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 Engineering Laboratory /                  Fire Research Division
      National Fire Research Laboratory


    Breadcrumb
    Fire Calorimetry Database (FCD)
          Natural Gas Confirmation BurnerNGQC_6m_20kgs_3MW

      Table 1. Test Information
        Name
            NGQC_6m_20kgs_3MWDate
            06/27/2019 7:40:58 AM EDTDescription
            Calorimetry confirmation experiment using 1.5 m natural gas tube burnerSpecimen
            tube gas burnerIgnition
            electric sparkProject ID (s)
            Natural Gas Confirmation Burner
      Vertical Upward Flamespread on Parallel PanelsTest Director
            BryantDownload CSV data file

      Timelapse Video with Heat Release Rate Plot
  Your browser does not support the video tag.Table 2. Summary of Test Results
        Measurement
          Value
          Uc
          UnitPeak Heat Release Rate, PHRR
            3,022
            96
            kWTime to Peak Heat Release Rate
            21.27
            0.17
            minTotal Heat Released, THR
            2,127
            69
            MJNatural Gas Burner Total Heat Released, NGTHR
            2,134
            30
            MJHeat Release Quality Confirmation, HRQC
            1.005
            0.035
            MJ/MJNet Specimen Mass (gravimetric), NM = Mi-Mf
            Not measured
            -
            kgTotal Fuel Mass Burned, TFM = THR / HOCf
              42.5
              1.5
              kgNet Effective Heat of Combustion = THR / NM
            Not measured
            -
            MJ/kgO2 Yield = O2 Consumed / TFM
            3.67
            0.17
            kg/kgCO2 Yield = CO2 Generated / TFM
            2.83
            0.14
            kg/kgCO Yield = CO Generated / TFM
            below detection limit
            0.00084
            kg/kgSoot Yield = Soot Generated / TFM
            below detection limit
            0.000018
            kg/kgBaseline Hood Exhaust Flow
            20.58
            0.62
            kg/sTest Duration = Time(Fire Out) - Time(Ignition)
            23.23
            0.03
            min*Uc = Combined Expanded Uncertainty with 95% confidence level*

      Table 3. Summary of Test Input Parameters
        Parameter
          Value
          Uc
          UnitFuel Type
            Natural Gas
            -
            -Hood Size
            6
            -
            mEffective Duct Diameter
            1.975
            0.005
            mExhaust Flow Correction Factor
            1.028
            0.029
            -Net Heat of Combustion (per unit mass O2), Ef
            12.54
            0.04
            MJ/kgNet Heat of Combustion(per unit mass fuel), HOCf
            50.00
            0.60
            MJ/kgInitial Specimen Mass, Mi (gravimetric)
            Not measured
            -
            kgFinal Specimen Mass, Mf (gravimetric)
            Not measured
            -
            kgPlot of Fire Heat Release Rate with event markers. Uncertainty bar shown at peak value.**Figure 1.** Plot of Heat Release Rate data with event markers and error bars shown at peak.


      Table 4. Summary of Observed Test Events
        Event
          Time (min)
          Description
          Video Snapshot Image1
  0.00
  Ignition
  Ignition
  peak
  21.27
  Peak HRR
  Peak HRR
  2
  23.23
  Fire Out
  Fire OutTable 5. Supplemental Data Plots
      Plot of Oxygen Dry Volume Fraction in hood exhaust stream.Plot of Oxygen Dry Volume Fraction in hood exhaust stream.
        Plot of Carbon Dioxide Dry Volume Fraction in hood exhaust stream.Plot of Carbon Dioxide Dry Volume Fraction in hood exhaust stream.
        Plot of Carbon Monoxide Dry Volume Fraction in hood exhaust stream.Plot of Carbon Monoxide Dry Volume Fraction in hood exhaust stream.
        Plot of Radiant Heat Flux data with event markers. r= radial distance from center of hood, h=height above floor. Plot of Radiant Heat Flux data with event markers. r= radial distance from center of hood, h=height above floor.
        Plot of Smoke Laser Extinction Coefficient in hood exhaust stream.Plot of Smoke Laser Extinction Coefficient in hood exhaust stream.
        Plot of Exhaust Duct Mass Flow Rate.Plot of Exhaust Duct Mass Flow Rate.

      Bryant, R. and Bundy, M. The NIST 20 MW Calorimetry Measurement System for Large-Fire Research, Technical Note (NIST TN) 2077, 2019https://doi.org/10.6028/NIST.TN.2077
        NIST Fire Calorimetry Database (FCD)https://doi.org/10.18434/mds2-2314

            Report Process Script Version
                                NFRL_Report_8.3.4


      Last Updated May 23, 2021
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