Report of Experimental Results for the International Fire Model Benchmarking and Validation Exercise #3.
Report of Experimental Results for the International
Fire Model Benchmarking and Validation Exercise #3.
(6624 K)
Hamins, A.; Maranghides, A.; Johnsson, E. L.; Donnelly,
M. K.; Yang, J. C.; Mulholland, G. W.; Anleitner, R. L.
NIST SP 1013-1; NIST Special Publication 1013-1;
NUREG/CR-6905; 189 p. June 2005.
Sponsor:
U.S. Nuclear Regulatory Commission, Washington, DC
Keywords:
fire models; validation; large scale fire tests; fuel
flow; heat release rate; heat flux; smoke concentration;
temperature; vents; doorways; sampling; gas temperature;
heat loss; enclosures; nuclear power plants; cables;
ventilation
Abstract:
The Nuclear Regulatory Commission (NRC) and the National
Institute of Standards and Technology (NIST) are
participating in an International Collaborative Fire
Model Project (ICFMP) to assess and validate fire
computer codes for nuclear power plant applications.
This assessment is being conducted through a series of
benchmarking and validation exercises. The goal of the
present study is to provide data from a large-scale fire
test series of a simulated nuclear power plant cable
room. The experimental configuration was designed to
mimic a cable room including realistic ventilation, a
door, an electrical junction box, as well as vertically
and horizontally aligned cables and cable trays. The
experiments consisted of hydrocarbon spray fires varying
from 350 kW to 2 MW in heat release rate burning in a
single compartment 7 m wide, 22 m long, and 4 m tall.
Information on the values of the fuel flow, measured
fuel flow rates, supply and exhaust ventilation flows,
ambient conditions and compartment leakage needed to
fully specify the boundary conditions for implementation
of the fire models are included. The experimental
results were composed of 15 tests with more than 370
channels of data. The measurements reported here include
the following: * Heat release rates * Compartment
pressure * Radiative and total heat flux at various
targets in the compartment * Surface and core cable
temperatures and a PVC slab temperature * Hot gas layer
(HGL) temperature, depth, soot density, and
concentrations of oxygen, carbon monoxide and carbon
dioxide * Gas temperatures * Total heat loss from walls,
ceiling, and floor * Total heat loss from the door and
mechanical exhaust vent. This report includes a
description of the measurement methods and experimental
results for Tests conducted as part of the International
Fire Model Benchmarking and Validation Exercise #3. The
experimental data itself is attached as thirty files,
two for each test, which are available electronically to
accompany this report. The data can be used as a
comparison with fire models as part of the international
benchmark exercise.
Building and Fire Research Laboratory
National Institute of Standards and Technology
Gaithersburg, MD 20899