Name | S06b_MildFire
|
---|---|
Date | |
Description | S06b specimen. Step burner to 1700 kW over 15min. MIDAS data collection on ventilation PC. |
Specimen | Box Burner with Target Wall
|
Ignition | Pilot flame
|
Project ID (s) | |
Test Director | Hoehler
|
Measurement | Value | Uc | Unit |
---|---|---|---|
Peak Heat Release Rate, PHRR
|
1,879
|
114
|
kW
|
Time to Peak Heat Release Rate
|
1.60
|
0.17
|
min
|
Total Heat Released, THR
|
1,452
|
89
|
MJ
|
Natural Gas Burner Total Heat Released, NGTHR
|
1,505
|
22
|
MJ
|
Heat Release Quality Confirmation, HRQC
|
Not measured | - | MJ/MJ
|
Net Specimen Mass (gravimetric), NM = Mi-Mf
|
Not measured | - | kg
|
Total Fuel Mass Burned, TFM = THR / HOCf
|
29.0
|
3.4
|
kg
|
Net Effective Heat of Combustion = THR / NM
|
Not measured | - | MJ/kg
|
O2 Yield = O2 Consumed / TFM
|
3.70
|
0.45
|
kg/kg
|
CO2 Yield = CO2 Generated / TFM
|
2.95
|
0.36
|
kg/kg
|
CO Yield = CO Generated / TFM
|
0.0047
|
0.0016
|
kg/kg
|
Soot Yield = Soot Generated / TFM
|
Not measured | - | kg/kg
|
Baseline Hood Exhaust Flow
|
54.1
|
1.6
|
kg/s
|
Test Duration = Time(Fire Out) - Time(Ignition)
|
15.75
|
0.03
|
min
|
Uc = Combined Expanded Uncertainty with 95% confidence level
Parameter | Value | Uc | Unit |
---|---|---|---|
Fuel Type
|
Natural Gas
|
- | - |
Hood Size
|
15
|
- | m
|
Effective Duct Diameter
|
2.424
|
0.005
|
m
|
Exhaust Flow Correction Factor
|
1.042
|
0.032
|
- |
Net Heat of Combustion (per unit mass O2), Ef
|
12.54
|
0.63
|
MJ/kg
|
Net Heat of Combustion(per unit mass fuel), HOCf
|
50.00
|
5.00
|
MJ/kg
|
Initial Specimen Mass, Mi (gravimetric)
|
Not measured | - | kg
|
Final Specimen Mass, Mf (gravimetric)
|
Not measured | - | kg
|
Event | Time (min) | Description | Video Snapshot Image |
---|---|---|---|
1
|
0.00
|
Ignition
|
![]() |
peak
|
1.60
|
Peak HRR
|
![]() |
2
|
15.75
|
Fire Out
|
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Bryant, R. and Bundy, M. The NIST 20 MW Calorimetry Measurement System for Large-Fire Research, Technical Note (NIST TN) 2077, 2019
https://doi.org/10.6028/NIST.TN.2077
NIST Fire Calorimetry Database (FCD)
https://doi.org/10.18434/mds2-2314