Name | Dry_Pine_Tree
|
---|---|
Date | |
Description | Seven foot tall douglas fir pine tree cut fresh 4 weeks prior to test. Not watered. 8 ft room corner with furniture and no sofit. |
Specimen | dry pine tree, upholstered chair and shelf in room corner
|
Ignition | electric match
|
Project ID (s) | |
Test Director | M. Hoehler, M. Bundy
|
Measurement | Value | Uc | Unit |
---|---|---|---|
Peak Heat Release Rate, PHRR
|
7,362
|
445
|
kW
|
Time to Peak Heat Release Rate
|
0.52
|
0.17
|
min
|
Total Heat Released, THR
|
938
|
58
|
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
|
31.3
|
9.6
|
kg
|
Net Effective Heat of Combustion = THR / NM
|
Not measured | - | MJ/kg
|
O2 Yield = O2 Consumed / TFM
|
2.31
|
0.71
|
kg/kg
|
CO2 Yield = CO2 Generated / TFM
|
2.87
|
0.88
|
kg/kg
|
CO Yield = CO Generated / TFM
|
0.063
|
0.019
|
kg/kg
|
Soot Yield = Soot Generated / TFM
|
Not measured | - | kg/kg
|
Baseline Hood Exhaust Flow
|
21.24
|
0.64
|
kg/s
|
Test Duration = Time(Fire Out) - Time(Ignition)
|
16.55
|
0.03
|
min
|
Uc = Combined Expanded Uncertainty with 95% confidence level
Parameter | Value | Uc | Unit |
---|---|---|---|
Fuel Type
|
Cellulose, Plastic
|
- | - |
Hood Size
|
6
|
- | m
|
Effective Duct Diameter
|
1.975
|
0.005
|
m
|
Exhaust Flow Correction Factor
|
1.028
|
0.029
|
- |
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
|
9.00
|
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
|
0.52
|
Peak HRR
|
![]() |
2
|
12.02
|
Suppression
|
![]() |
3
|
16.55
|
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