Name | NGQC_3m_2kgs_400kW_R3
|
---|---|
Date | |
Description | Natural gas confirmation using flamechannel burner with 30 cm square opening |
Specimen | box burner
|
Ignition | propane wand
|
Project ID (s) | |
Test Director | Bryant
|
Measurement | Value | Uc | Unit |
---|---|---|---|
Peak Heat Release Rate, PHRR
|
438
|
14
|
kW
|
Time to Peak Heat Release Rate
|
17.52
|
0.17
|
min
|
Total Heat Released, THR
|
307.8
|
9.9
|
MJ
|
Natural Gas Burner Total Heat Released, NGTHR
|
300.3
|
4.1
|
MJ
|
Heat Release Quality Confirmation, HRQC
|
1.020
|
0.035
|
MJ/MJ
|
Net Specimen Mass (gravimetric), NM = Mi-Mf
|
Not measured | - | kg
|
Total Fuel Mass Burned, TFM = THR / HOCf
|
6.16
|
0.21
|
kg
|
Net Effective Heat of Combustion = THR / NM
|
Not measured | - | MJ/kg
|
O2 Yield = O2 Consumed / TFM
|
3.68
|
0.17
|
kg/kg
|
CO2 Yield = CO2 Generated / TFM
|
2.85
|
0.14
|
kg/kg
|
CO Yield = CO Generated / TFM
|
below detection limit
|
0.00035
|
kg/kg
|
Soot Yield = Soot Generated / TFM
|
below detection limit
|
0.00082
|
kg/kg
|
Baseline Hood Exhaust Flow
|
2.111
|
0.063
|
kg/s
|
Test Duration = Time(Fire Out) - Time(Ignition)
|
24.80
|
0.03
|
min
|
Uc = Combined Expanded Uncertainty with 95% confidence level
Parameter | Value | Uc | Unit |
---|---|---|---|
Fuel Type
|
Natural Gas
|
- | - |
Hood Size
|
3
|
- | m
|
Effective Duct Diameter
|
0.483
|
0.004
|
m
|
Exhaust Flow Correction Factor
|
1.033
|
0.029
|
- |
Net Heat of Combustion (per unit mass O2), Ef
|
12.54
|
0.04
|
MJ/kg
|
Net Heat of Combustion(per unit mass fuel), HOCf
|
50.00
|
0.60
|
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
|
|
2
|
2.40
|
105 kW
|
|
3
|
6.55
|
297 kW
|
|
4
|
11.35
|
210 kW
|
|
5
|
16.18
|
415 kW
|
|
peak
|
17.52
|
Peak HRR
|
|
6
|
20.50
|
54 kW
|
|
7
|
24.80
|
Fire Out
|
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