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Engine
Research Building (ERB):
Flow Physics Facilities - CE-22
Advanced Nozzle Test Facility
CE-22
Facility Description
The development of advanced nozzle concepts for aircraft jet engines
requires extensive testing to confirm theoretical performance calculations
and to verify and develop new computer codes. The facility can provide
40-psig primary combustion air at 40 lb/s and secondary air at 40,
125, or 450 psig. The 40-psig primary air and the secondary air
can be heated to 370 and 250 degrees F respectively. Model exhaust
can be supplied at atmospheric or simulated 48,000-ft altitude conditions.
The model is installed in an altitude tank connected to the inlet-
and exhaust-air piping. The tank is 7.5 ft internal diameter and
23 ft long. The aft portion separates and is moveable to allow access
to the model. Primary air enters the tank axially and passes through
a bellmouth flow measuring section; secondary air enters through
two ports in the top of the tank.
CE-22
Special Features
The facility can measure thrust in all three axes, providing
axial, vertical, and lateral thrust measurements with a 3000-lb
limit in the axial direction and 1000-lb limits in both the vertical
and lateral directions. A color schlieren system is available for
quantitative airflow analysis. A remotely operated television system
can record model testing. The test facility and control room have
been modified for special projects requiring security. An ESCORT
D data acquisition system is interfaced with an ESP system to acquire
and record steady-state data.
CE-22
Facility Capabilities |
| Parameter |
Operating Values |
| Inlet
air: primary flow |
40
lb/s at 40 psig at 370oF |
| Inlet
air: secondary flow |
21
lb/s at 40 psig, amb temp
2
lb/s at 125 psig at 250oF
8
lb/s at 450 psig at 250oF |
| Exhaust |
atm
to 20 to 26 in. hg vacuum |
| Model
size limit |
8.75
in. inside dia, 5 ft long |
| CE-22 System Instrumentation |
| System |
Number and Type |
| ESP |
64 Ports of +/- 15 PSID
384 Ports of +/- 45 PSID
32 Ports of + 500 PSID
Barometric Ref |
| Escort |
200 Channels of which 138 are available for the test article |
| Thermocouples |
96 Type K |
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