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All three nozzles have axial static pressure tappings allowing the approach, throat and divergent section pressures to be measured. The variation of pressure ratio and mass flow may be investigated for all three nozzles.
Two convergent-divergent nozzles of with the same throat diameter but different discharge area and a single convergent nozzle having the same diameter are supplied and fit in the common test section.
The unit provides common instrumentation for all of the options. Specialized instruments are included as required with the modules. The main unit consists of an instrumentation and control console that supplies a variable flow of compressed air to the range of optional modules.
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A simple deadweight tester with weights and a bourdon tube pressure gauge with a clear front allowing the mechanism to be viewed. The unit has an optional pressure transducer available allowing the concept of electronic representation of pressure to be investigated. Unique design allows standard Newton weights to be used; hence reinforcing the student understanding of pressure being Force / Unit Area.
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The pressures, temperatures and air flow rate are recorded by a combination of instrumentation on the Compressible Flow Range base unit and the optional module. A digital hand held manometer is supplied.
A series of four straight tubes of different diameters with end pressure tapings allow pressure losses in a straight pipe to be investigated at a range of Reynolds numbers. Bends, sudden enlargements and contractions are included to allow investigation of pressure loss and recovery.
The unit is driven by an ejector (jet pump) allowing investigation of entertainment ratio and ejector performance.
Inlet and outlet air pressures, temperatures and air flow rate, turbine torque and speed are recorded by a combination of instrumentation on the Compressible Flow Range base unit and the optional module.
Experimental Reaction Turbine Module:- Inlet and outlet air temperatures are recorded allowing the temperature drop due to work output to be measured. A single stage, radial flow , two jet reaction turbine with a throttle valve and belt brake dynamometer.
A moveable pressure tapping and separate thermocouple allow the pressure and temperature within the bed at any depth to be measured. An adjustable cylindrical heater with surface thermo couple and power meter can be immersed at any level in, or out of the bed to allow measurement of the local heat transfer coefficient.
A glass cylindrical chamber with an air distribution plate at the bottom end allows the granular material supplied to be fluidized by a controlled and measured air flow.
Integral duplex thermocouples record all relevant system temperatures and are connected to a multi-way selector switch and digital temperature indicator.
A bench mounted, belt driven, single stage reciprocating air compressor with a motor dynamometer allowing measurement of the motor shaft power.
Intake and discharge air pressures are measured together with the air flow rate, motor drive speed and torque.
An optional computerized data acquisition upgrade is available that allows all relevant system parameters to be automatically recorded on a PC.
An intake vessel reduces intake air pulsations and a high pressure air receiver is connected to the compressor discharge.
The unit is supplied with a detailed experimental operating and maintenance manual giving example experimental results and sample calculations.
A bench mounted, belt driven, single stage reciprocating air compressor with a motor dynamometer allowing measurement of the motor shaft power.
Intake and discharge air pressures are measured together with the air flow rate, motor drive speed and torque.
An intake vessel reduces intake air pulsations and a high pressure air receiver is connected to the compressor discharge.
The unit is supplied with a detailed experimental operating and maintenance manual giving example experimental results and sample calculations.
An optional computerized data acquisition upgrade is available that allows all relevant system parameters to be automatically recorded on a PC.
Integral duplex thermocouples record all relevant system temperatures and are connected to a multi-way selector switch and digital temperature indicator.
The apparatus comprises of two units: the manometer and gauge assembly and the calibration of a pressure gauge assembly. During test, calibration weights are placed onto the loading platform, which is an integral part of the piston assembly. All air is expelled from the system through a purge hole in the upper part of the cylinder. The internal mechanism of the gauge is clearly visible through the transparent dial.
The apparatus has been designed to allow the suction pressure or delivery pressure of a diaphragm pump to be measured on sloping or vertical manometers and Bourdon gauges, for comparison; and to investigate the calibration and internal workings of a Bourdon gauge.
A pressure regulator, throttle valve and back pressure valve allow the air flow rate, inlet and discharge (or back) pressure to be varied. A series of convergent and convergent-divergent nozzles may be installed in one of two locations in a high pressure measuring chamber.
Inlet and outlet air pressures, temperatures and air flow rate are recorded by a combination of instrumentation on the Compressible Flow Range base unit and the optional module.
Standard unit includes convergent – divergent ducts designed to produce Mach 1.0 at the throat and supersonic velocities downstream.
Inlet and outlet air pressures, temperatures and air flow rate, turbine torque and speed are recorded by a combination of instrumentation on the Compressible Flow Range base unit and the optional module.
Inlet and outlet air temperatures are recorded allowing the temperature drop due to work output to be measured. An impulse turbine with 4 separate nozzles and control valves, a throttle valve and belt brake dyna mometer.
