Additional information
| Brand | Essom |
|---|
Tray Dryer
This is a basic unit for studying of tray drying by hot air.
The unit consists of a rectangular duct. Air is drawn into the duct by an axial flow fan at the front end of the duct. Fan speed is adjustable. A bank of electric heaters behind the fan raises air temperature. Behind the heater is a drying compartment with transparent access door. A rack of trays is suspended from a balance above the duct. Temperatures and humidity before and after the drying trays are measured.
Instruction manual is also included.
TYPICAL EXPERIMENTS
- Tray drier drying curves.
- Effect of particle size.
- Effect of air velocity.
- Effect of air temperature.
TECHNICAL DATA
| Drying section | 350 x 350 mm | |
| Air velocity | 0.3 – 1.8 m/s | |
| Heater capacity | 3 kw, variable | |
| Trays | 4 stainless steel. | |
| Tray capacity | 3 kg of solids (approx.) | |
| Measuring instruments | ||
| – Digital balance | 1 ea. | |
| – Anemometer | 1 ea. | |
| – Thermo-hygrometer | 1 ea. | |
| 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. | |
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Air Flow and ThermodynamicsTwo Stage Air Compressor Test Set: Air-Water Cooled
The test set is for studying the two stage reciprocating air compressor characteristics.
For educational purpose, the two stages are separated and can be operated at different speeds. Both stages are connected by vee-belts to the same motor with an advanced inverter. The second stage compressor has three alternative pulleys to vary the pressure ratio between the two stages. An intercooler is provided between first and second stage. The air receiver has a drain valve, safety valve, pressure switches and a discharge valve. The piping system is arranged such that intercooler or second stage compressor can be by passed. The unit is equipped with necessary measuring instruments and is on wheels.
Instruction manual is also included.
TYPICAL EXPERIMENTS- Compressor characteristics e.g. volumetric efficiency, isothermal efficiency, pressure ratio, temperature ratio.
- Effect of compressor speed.
- Effect of intercooler.
- Effect of second stage drive ratio.
- Effect of inter cooling.
- Air water heat exchanger demonstration.
TECHNICAL DATACompressors: – Type Air-cooled, two stage – Displacement 300 ml. or approximate equal – Second stage Single cylinder, completed with three different diameter pulleys – Maximum working pressure 12 kg/cm2 Air receiver Approx. 90 L or as requested Intercooler Water cooled, counter flow heat exchanger Measuring instruments – Pressures Pressure gauges at first stage and second stage outlets, and air receiver – Air flow rate Inlet orifice plate with air box and inclined water manometer, 0-450 mm x 1 mm
graduation, multiple slope 1:10, 1:5, 1:2 and 1:1– Motor input power Advanced inverter – Sensors with digital display - Speed for compressors
- Temperature for ambient, outlet air of each stage, second stage inlet and cooling water inlet and outlet
Accessory Barometer Software for data display and analysis by computer (separately supplied). Power supply 220V, 1 Ph, 50 Hz. Other power supply is available on request. (0 reviews) -
Air Flow and ThermodynamicsCentrifugal Blower Test Set
This a bench top unit for studying the centrifugal blower characteristics.
The unit consists of an industrial type centrifugal blower with a motor and advanced inverter, inlet and outlet ducts with flow straighteners, a damper, and measuring instruments according to BS 848 and ISO 1042. Extra blades are provided for comparison study.
Instruction manual is also included.
TYPICAL EXPERIMENTS- Inlet and discharge pressures vs blower speed.
- Flow rate vs speed.
- Blower input, output and efficiency.
- Comparison of backward, radial, and forward blade impellers.
TECHNICAL DATABlower rating at 2900 rpm: – Maximum flow rate (unchoked) 15 m3/min – Maximum head (fully choked) 150 mm. water Inlet duct with flow straightener Outlet duct with flow straightener and damper Speed control Advanced inverter Measuring instruments – Air flow rate Inlet orifice plate or Venturi nozzle with inclined water manometer – Differential pressures Twin inclined water manometers (one for air flow rate), 0-450 mm x 1 mm graduation, multiple slope 1:10, 1:5, 1:2 and 1:1 – Blower speed and motor input power : Advanced inverter Advanced inverter – Temperature Thermometer Accessories 2 extra impellers with radial and forward blade designs and barometer 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)
