Name | Test_2
|
---|---|
Date | |
Description | Furniture flamability in 3.6m room. Ignite throw pillow on sofa with propane wand. BOB 360 video in room. Flashover observed. |
Specimen | furnished room with cotton fabric sofa with barrier
|
Ignition | propane wand
|
Project ID (s) | |
Test Director | Zammarano
|
Measurement | Value | Uc | Unit |
---|---|---|---|
Peak Heat Release Rate, PHRR
|
8,422
|
501
|
kW
|
Time to Peak Heat Release Rate
|
21.68
|
0.17
|
min
|
Total Heat Released, THR
|
2,246
|
142
|
MJ
|
Natural Gas Burner Total Heat Released, NGTHR
|
0
|
- | 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
|
75
|
16
|
kg
|
Net Effective Heat of Combustion = THR / NM
|
Not measured | - | MJ/kg
|
O2 Yield = O2 Consumed / TFM
|
2.28
|
0.48
|
kg/kg
|
CO2 Yield = CO2 Generated / TFM
|
2.92
|
0.62
|
kg/kg
|
CO Yield = CO Generated / TFM
|
0.0440
|
0.0094
|
kg/kg
|
Soot Yield = Soot Generated / TFM
|
0.0112
|
0.0031
|
kg/kg
|
Baseline Hood Exhaust Flow
|
46.2
|
1.4
|
kg/s
|
Test Duration = Time(Fire Out) - Time(Ignition)
|
54.22
|
0.03
|
min
|
Uc = Combined Expanded Uncertainty with 95% confidence level
Parameter | Value | Uc | Unit |
---|---|---|---|
Fuel Type
|
Cellulose, Plastic
|
- | - |
Hood Size
|
9
|
- | m
|
Effective Duct Diameter
|
1.975
|
0.005
|
m
|
Exhaust Flow Correction Factor
|
1.055
|
0.034
|
- |
Net Heat of Combustion (per unit mass O2), Ef
|
13.10
|
0.66
|
MJ/kg
|
Net Heat of Combustion(per unit mass fuel), HOCf
|
30.00
|
6.00
|
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
|
|
2
|
20.92
|
flashover
|
|
peak
|
21.68
|
Peak HRR
|
|
3
|
30.42
|
hcn sample pumps stopped 1 minute post flashover
|
|
4
|
50.12
|
Suppression
|
|
5
|
54.22
|
Fire Out
|
|
6
|
54.40
|
room clear
|
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