Name | Plant_27
|
---|---|
Date | |
Description | Excelsior; vertical orientation; single specimen; Bottom ignition; height = 120 cm; width = 15 cm; mass = 268 g (wet basis); moisture content = 6 % (dry basis); bulk density = 13 kg/m3 |
Specimen | Excelsior
|
Ignition | 164 W dual tip propane wand for 5 sec
|
Project ID (s) | |
Test Director | Hamins
|
Measurement | Value | Uc | Unit |
---|---|---|---|
Peak Heat Release Rate, PHRR
|
171.9
|
9.2
|
kW
|
Time to Peak Heat Release Rate
|
0.52
|
0.07
|
min
|
Total Heat Released, THR
|
3.81
|
0.23
|
MJ
|
Gas Burner Total Heat Released, NGTHR
|
0
|
- | MJ
|
Heat Release Quality Confirmation, HRQC
|
Not measured | - | MJ/MJ
|
Net Specimen Mass (gravimetric), NM = Mi-Mf
|
0.2522
|
0.0071
|
kg
|
Net Effective Heat of Combustion = THR / NM
|
15.12
|
0.99
|
MJ/kg
|
O2 Yield = O2 Consumed / NM
|
1.159
|
0.049
|
kg/kg
|
CO2 Yield = CO2 Generated / NM
|
1.523
|
0.070
|
kg/kg
|
CO Yield = CO Generated / NM
|
0.01819
|
0.00083
|
kg/kg
|
Soot Yield = Soot Generated / NM
|
0.00070
|
0.00017
|
kg/kg
|
Baseline Hood Exhaust Flow
|
5.74
|
0.17
|
kg/s
|
Test Duration = Time(Fire Out) - Time(Ignition)
|
1.23
|
0.03
|
min
|
Uc = Combined Expanded Uncertainty with 95% confidence level
Parameter | Value | Uc | Unit |
---|---|---|---|
Fuel Type
|
Excelsior
|
- | - |
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
|
13.23
|
0.53
|
MJ/kg
|
Net Heat of Combustion(per unit mass fuel), HOCf
|
18.00
|
0.50
|
MJ/kg
|
Initial Specimen Mass, Mi (gravimetric)
|
0.25
|
0.01
|
kg
|
Final Specimen Mass, Mf (gravimetric)
|
below detection limit
|
0.01
|
kg
|
Event | Time (min) | Description | Video Snapshot Image |
---|---|---|---|
1
|
0.00
|
Ignition
|
![]() |
peak
|
0.52
|
Peak HRR
|
![]() |
2
|
1.23
|
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