Skip to main content
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.

CLT Room Test 1-4

Hoehler, M. Dataset from Fire Safety Challenges of Tall Wood Buildings - Phase 2: Task 3 - Cross Laminated Timber Compartment Fire Tests, 2017 https://doi.org/10.18434/T4/1422512

 

Table 1. Test Information

Name CLT_Room_Test_1-4
Date 3/21/2017 9:51:10 AM
Description Furnished room with 3 layers of type X gypsum on all walls. Ceiling is exposed CLT. Narrow door opening
Specimen furnished studio apartment, CLT ceiling
Ignition natural gas burner
Project ID NRCC_CLT
Test Director M. Hoehler, J. Su


Timelapse Video with Heat Release Rate Plot:
Timelapse Video+HRR

Download Data Files:
CSV-Datafile
Preliminary Report PDF file
Preliminary Report XLSX file

Table 2. Summary of Test Results

Measurement Value Uc Unit
Peak Heat Release Rate, PHRR 13665 ±  1156 kW
Time to Peak Heat Release Rate 12.03 ±  0.17 min
Total Heat Released, THR 37451 ±  2247 MJ
Nat. Gas Burner Total Heat Released, NGTHR 36.49 ±  0.53 MJ
Total Fuel Mass Burned, TFM = THR / HOCf 1882 ±  219 kg
O2 Yield = O2 Consumed / TFM 1.54 ±  0.19 kg/kg
CO2 Yield = CO2 Generated / TFM 2.01 ±  0.25 kg/kg
CO Yield = CO Generated / TFM 0.0352 ±  0.0043 kg/kg
Soot Yield = Soot Generated / TFM NaN ±  NaN kg/kg
Baseline Hood Exhaust Flow 101.7 ±  3.1 kg/s
Test Duration = Time (Fire Out) - Time (Ignition) 175.73 ±  0.03 min


Table 3. Summary of Test Input Parameters

Parameter Value Uc Unit
Fuel Type Cellulose, Plastics - -
Hood Size 15 - m
Effective Duct Diameter 2.424 ± 0.005 m
Exhaust Flow Correction Factor 1.042 ± 0.029 -
Net Heat of Combustion (per unit mass O2), Ef 13.1 ±  0.66 MJ/kg
Net Heat of Combustion (per unit mass fuel), HOCf 19.9 ± 2 MJ/kg
Initial Specimen Mass, Mi (gravimetric) NaN ±  NaN kg
Final Specimen Mass, Mf (gravimetric) NaN ±  NaN kg

Uc = Combined Expanded Uncertainty with 95% confidence level

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
HRRplot
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 Ignition photo
2 11.55 flashover photo
3 113.8 flames extinguished on upper rear corner of wall 1 photo
4 152.55 flare up flames out doorway photo
5 158.7833 start fire hose water suppression photo
6 175.7333 Fire Out photo
7 12.03 Peak HRR photo

O2plot
CO2plot
COplot
MFReplot


Report Process Script Version = NFRL_Report71.m

 

Created February 27, 2020