3
the schematic experimental setup. Gas temperatures at the
container exit section were monitored using thermocouples
(TC ports). A diesel engine block, measuring 53 inches
(1.35 meters) in length, 23 inches (0.58 meters) in width,
and 36 inches (0.91 meters) in height, was affixed to a steel
frame equipped with casters, enabling easy maneuvering to
the designated test location.
Suppression tests involved employing a liquid spray fire
fueled by diesel, engine oil or hydraulic fluid. The delivery
mechanism for these liquids was established using a com-
pressed air cylinder equipped with a regulator to manage
pressure. This system interfaced with a 1-gallon (3.8-liter)
stainless steel cylinder containing various fuel types, deliv-
ered via ¼-inch stainless steel tubing to the fuel nozzle.
Achieving a stable spray fire necessitated reaching specific
threshold values for oil pressure and temperature. To facili-
tate this, an electric heating strip encircled the cylinder to
elevate oil temperature and reduce viscosity, particularly
when using engine oil and hydraulic oils. A pair of cameras
were installed near the ceiling of the test facility to monitor
the tests.
Six fire suppression nozzle configurations were used in
the tests: 3 configurations for single agent systems, 3 con-
figurations for dual agent systems. The detailed configura-
tions are portrayed in Figure 3. A diesel engine block with
dimensions of 53-inch (1.35-m) length, 23-inch (0.58-m)
width, and 36-inch (0.91-m) height was mounted onto a
steel frame with casters on it to have the ability to roll it
into the correct location for the test. For single agent system
tests, there was one suppression nozzle on each side of the
engine block. For position A, both nozzles were aimed at
the engine block. For position B, both nozzles were pointed
at the fire source. For position C, one nozzle was pointed
at the fire source while a second nozzle was pointed away.
Figure 3. (a) Six nozzle location configurations and (b) photo of test set up with nozzle
locations
the schematic experimental setup. Gas temperatures at the
container exit section were monitored using thermocouples
(TC ports). A diesel engine block, measuring 53 inches
(1.35 meters) in length, 23 inches (0.58 meters) in width,
and 36 inches (0.91 meters) in height, was affixed to a steel
frame equipped with casters, enabling easy maneuvering to
the designated test location.
Suppression tests involved employing a liquid spray fire
fueled by diesel, engine oil or hydraulic fluid. The delivery
mechanism for these liquids was established using a com-
pressed air cylinder equipped with a regulator to manage
pressure. This system interfaced with a 1-gallon (3.8-liter)
stainless steel cylinder containing various fuel types, deliv-
ered via ¼-inch stainless steel tubing to the fuel nozzle.
Achieving a stable spray fire necessitated reaching specific
threshold values for oil pressure and temperature. To facili-
tate this, an electric heating strip encircled the cylinder to
elevate oil temperature and reduce viscosity, particularly
when using engine oil and hydraulic oils. A pair of cameras
were installed near the ceiling of the test facility to monitor
the tests.
Six fire suppression nozzle configurations were used in
the tests: 3 configurations for single agent systems, 3 con-
figurations for dual agent systems. The detailed configura-
tions are portrayed in Figure 3. A diesel engine block with
dimensions of 53-inch (1.35-m) length, 23-inch (0.58-m)
width, and 36-inch (0.91-m) height was mounted onto a
steel frame with casters on it to have the ability to roll it
into the correct location for the test. For single agent system
tests, there was one suppression nozzle on each side of the
engine block. For position A, both nozzles were aimed at
the engine block. For position B, both nozzles were pointed
at the fire source. For position C, one nozzle was pointed
at the fire source while a second nozzle was pointed away.
Figure 3. (a) Six nozzle location configurations and (b) photo of test set up with nozzle
locations