U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Engineering Laboratory / Fire Research Division

National Fire Research Laboratory

Methanol_1m_Pool_R1

Table 1. Test Information
Name
Methanol_1m_Pool_R1
Date
Description

Methanol pool fire using thin filament and fine gauge tc to measure flame temperature. Water cooled round pool burner with gravity fed methanol fuel to maintain constant level. Diameter 1.00 m. Depth 10 cm. lip 44.5 cm above floor. Peak HRR value is higher than time averaged peak value reported in NIST.TN.2083.
Specimen
1 m diameter pool burner
Ignition
propane wand
Project ID (s)
Characteristics of a 1 m Methanol Pool Fire
Test Director
Hamins

Timelapse Video with Heat Release Rate Plot

Table 2. Summary of Test Results
Measurement Value Uc Unit
Peak Heat Release Rate, PHRR
282
14
kW
Time to Peak Heat Release Rate
43.95
0.17
min
Total Heat Released, THR
753
38
MJ
Natural Gas Burner Total Heat Released, NGTHR
-5
 -
MJ
Heat Release Quality Confirmation, HRQC
-0.007
 -
MJ/MJ
Net Specimen Mass (gravimetric), NM = Mi-Mf
 Not measured -
kg
Total Fuel Mass Burned, TFM = THR / HOCf
37.8
2.4
kg
Net Effective Heat of Combustion = THR / NM
 Not measured -
MJ/kg
O2 Yield = O2 Consumed / TFM
1.42
0.10
kg/kg
CO2 Yield = CO2 Generated / TFM
1.41
0.10
kg/kg
CO Yield = CO Generated / TFM
0.000169
0.000088
kg/kg
Soot Yield = Soot Generated / TFM
below detection limit
0.0000075
kg/kg
Baseline Hood Exhaust Flow
1.945
0.058
kg/s
Test Duration = Time(Fire Out) - Time(Ignition)
48.82
0.03
min

Uc = Combined Expanded Uncertainty with 95% confidence level

Table 3. Summary of Test Input Parameters
Parameter Value Uc Unit
Fuel Type
Methanol
 - -
Hood Size
3
 -
m
Effective Duct Diameter
0.485
0.004
m
Exhaust Flow Correction Factor
0.992
0.029
 -
Net Heat of Combustion (per unit mass O2), Ef
13.29
0.53
MJ/kg
Net Heat of Combustion(per unit mass fuel), HOCf
19.92
0.80
MJ/kg
Initial Specimen Mass, Mi (gravimetric)
 Not measured -
kg
Final Specimen Mass, Mf (gravimetric)
 Not measured -
kg
Plot of Fire Heat Release Rate with event markers. Uncertainty bar shown at peak value.
Figure 1. Plot of Heat Release Rate data with event markers and error bars shown at peak.
Table 4. Summary of Observed Test Events
Event Time (min) Description Video Snapshot Image
1
0.00
Ignition
Ignition
peak
43.95
Peak HRR
Peak HRR
2
44.78
stopped gravity fuel feed
stopped gravity fuel feed
3
48.43
snuff fire with cover plate
snuff fire with cover plate
4
48.82
Fire Out
Fire Out

Table 5. Supplemental Data Plots

Plot of Oxygen Dry Volume Fraction in hood exhaust stream.
Plot of Oxygen Dry Volume Fraction in hood exhaust stream.
Plot of Carbon Dioxide Dry Volume Fraction in hood exhaust stream.
Plot of Carbon Dioxide Dry Volume Fraction in hood exhaust stream.
Plot of Carbon Monoxide Dry Volume Fraction in hood exhaust stream.
Plot of Carbon Monoxide Dry Volume Fraction in hood exhaust stream.
Plot of Radiant Heat Flux data with event markers. r= radial distance from center of hood, h=height above floor.
Plot of Radiant Heat Flux data with event markers. r= radial distance from center of hood, h=height above floor.
Plot of Smoke Laser Extinction Coefficient in hood exhaust stream.
Plot of Smoke Laser Extinction Coefficient in hood exhaust stream.
Plot of Exhaust Duct Mass Flow Rate.
Plot of Exhaust Duct Mass Flow Rate.

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

Report Process Script Version
NFRL_Report_8.3.3
Last Updated May 14, 2021