Performance of Special Extinguishment Agents for ... - UL.com

Issued: September 30, 2008
ADD Test Facility
Large Scale
Fire Test Facility
Heat Release Calorimeter & RDD
PDPA Test Facility
Conditioning
Room
Warehouse
8.2.2 Calorimeter Room Test Facility
Figure 16. Test Facility
The test was conducted in the nominal 50 by 50-ft products collector, or heat release calorimeter
test cell that is equipped with a 25 ft. diameter collection hood. The collection hood was
positioned nominally 25 ft. above the test lab floor.
The center of the floor of the test facility smooth and flat and is surrounded with a grated
drainage trench to insure adequate water drainage from the test area. The water from the
suppression application is collected, contained and filtered through an 180,000-gallon water
treatment system.
The product collector is capable of measuring Total chemical heat release rate as well as
convective heat release rate of burning combustibles.
The Total chemical heat release rate is measured with oxygen consumption principles. The
convective heat release rate is measured with a thermopile (collection of thermocouples) as well
as measurement of the mass flowrate of the products moving through the collection system. The
difference between the two heat release rate measurements is the radiative fraction of the heat
release rate.
All products of combustion from the tests were contained within the test facility and processed
through a regenerative thermal oxidizing system.
8.3 Instrumentation
Instrumentation references within this section can be related back to Figure 17.
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