Additional information
| Brand | Essom |
|---|
Stirling Cycle Hot Air Engine: Vertical Cylinders
The unit is for demonstration of stirling cycle hot air engine principles.
The engine consists of two vertical stainless steel cylinders. The first cylinder is to generate hot air using a heater. Power to the heater can be varied. The second cylinder is to generate a mechanical power using hot air from the first cylinder. Both cylinders are attached to a common shaft, with a suitable flywheel. The hot gas cylinder head is cooled by outside water supply. Instruments are provided for measurement of input power, and output power.
The advantage of this design is the ability to bring the engine to operating condition in a short time.
Instruction manual is also included.
TYPICAL EXPERIMENTS
- Torque vs speed for a given input power.
- Output and efficiency vs speed for a given input power.
TECHNICAL DATA
| Heater | 500 W max |
| Maximum power (mechanical) | Approx. 900 mW |
| Measuring instruments | |
| – Torque | Mechanical dynamometer with spring balance, belt, and weights |
| – Speed | Portable tachometer |
| – Sensors with digital display | Voltage and current of input power |
| Software for data display and analysis by computer (separately supplied). | |
| Power supply | 220 V, 1 Ph, 50Hz. Other power supply is available on request. |
100% Original and qualityRelated products
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Air Flow and ThermodynamicsMP 315D Subsonic Wind Tunnel: Downstream Fan
The subsonic wind tunnel is an open circuit down stream fan type designed for studying the subsonic aerodynamics. It is to be used with optional accessories and models below.
The air enters the tunnel via a wire mesh screen and a flow straightener. A high contraction ratio section ensures uniform velocity across the transparent test section. Downstream of the working section is a low angle diffuser which terminates at the tunnel fan. The diffuser and contraction sections have a high quality internal finish to minimize the boundary layer effects. The fan impeller blades are of an aerofoil design cast aluminum to ensure maximum aerodynamic efficiency and minimum turbulence. Fan speed is adjustable by an inverter.
Four equally spaced static pressure taps are connected to a manifold to minimize effects from a model. Air speed is indicated by an inclined manometer and a calibration graph. Models are mounted on two components balance support with digital display for measurement of drag and lift. Model holder can be rotated to allow quick change on the angle of incidence. This angle is indicated on an angular scale.
The tunnel is on a frame with adjustable footings for table top mounting.
Instruction manual is also included.
TYPICAL EXPERIMENTS- Pressure and velocity measurement.
- Estimation of drag coefficients of various bodies, eg. sphere, hemisphere, disc, streamlined shape etc.
- Estimation of drag and lift coefficients of an aerofoil.
- Pressure distribution around an aerofoil or a cylinder.
- Investigation of boundary layer at a flat plate by measuring total head distribution.
- Stream lines visualization using a smoke generator.
- Wakes behind models.
TECHNICAL DATAFan: – Diameter 300 mm – Impeller Single stage, aerofoil blade Contraction area ratio 9:1 Test section 150 mm x 150 mm x 450 mm long, transparent on three sides Maximum air velocity Over 30 m/s Measuring instruments – Water manometer Twin type – Wind velocity Multiple taps contraction section differential pressure with velocity calibration graph (to be used with inclined water manometer above) – Sensors with digital display – Lift and drag Two component balance with model holder for measurement of lift and drag Software for data display and analysis by computer (separately supplied). Power supply 220 V, 1 Ph, 50 Hz. Other power supply is available on request. (0 reviews) -
Air Flow and ThermodynamicsMulti Stage Centrifugal Air Compressor Demonstration Unit – Computer Interface
This is a bench top unit for studying the multi stage centrifugal air compressor characteristics with data analysis by computer.
The unit consists of a small multi stage air compressor with a motor on a steel base, inlet and outlet ducts, sensors and software.
Speed control is by a variac.
Instruction manual is also included.
TYPICAL EXPERIMENTS- Flow rate vs pressure.
- Compressor input, output, and overall efficiency.
- Effect of speed on compressor performance.
TECHNICAL DATACompressor – Type 2 stage, centrifugal – Rated maximum flow rate 0.03 m3/s – Rated maximum pressure 25 kPa Inlet duct Transparent with orifice Outlet duct Transparent with damper Speed control Variac Sensors with digital display - Differential pressure across the fan
- Differential pressure at the orifice
- Temperature of inlet air
- Compressor speed
- Input power
Computer interface unit Software for data display and analysis by computer (separately supplied). Accessory Barometer Power supply 220 V, 1 Ph, 50 Hz. Other power supply is available on request. (0 reviews)
