Multi Stage Centrifugal Air Compressor Demonstration Unit – Computer Interface

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  Air Flow and Thermodynamics

  Axial Flow Fan Test Set

  This is a bench top set for studying industrial type axial flow fan characteristics.

  The unit consists of a single stage variable pitch axial flow fan and motor, an advanced inverter, inlet and outlet ducts, and instruments for measurement of air flow rate, pressures, and temperature. The unit is on wheels.

  Instruction manual is also included.

  TYPICAL EXPERIMENTS

  • Flow rate vs pressure.
  • Fan input, output and efficiency.
  • Effect of speed on fan performance.
  • Effect of impeller pitch angle on fan performance.
  • Investigations of velocity distribution.
  • Effect of guide vane on fan performance (optional).

  TECHNICAL DATA

  Fan:
  – Diameter	380 mm
  – Impeller construction	Single stage, aerofoil aluminium blades Adjustable pitch angle
  – Rated maximum flow rate	4,000 m3/h
  – Rated maximum pressure	35 mm water
  Inlet duct with inlet cone and flow straightener
  Outlet duct with flow straightener and damper
  Speed control	Advanced inverter
  Measuring instruments:
  – Air flow rate	Travelling pitot and inlet cone and inclined water manometer
  – Differential pressure	Twin inclined water manometer (one for air flow rate), 0-450 mm x 1 mm graduation, multiple slope 1:10, 1:5, 1:2 and 1:1
  – Fan speed and motor input power	Advanced inverter
  – Temperature	Thermometer
  Accessory	Barometer
  Software for data display and analysis by computer (separately supplied).
  Power supply	220V 1Ph 50 Hz. Other power supply is available on request.

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  Air Flow and Thermodynamics

  Multi Heat Exchanger

  The apparatus is used for studying of three types of heat exchangers namely-concentric tube, shell and tube, and plate-under parallel or counter flow conditions.

  The unit consists of the three heat exchangers and a service module. The module comprises a hot water tank with a transfer pump and instruments for monitoring and control. Changing from one type of heat exchanger to another is by rearranging flexible hoses and changing from parallel to counter flow is by switching two hoses with quick couplings. The unit requires outside water supply.

  Instruction manual is also included.

  TYPICAL EXPERIMENTS

  • Comparison of heat transfer for concentric tube, shell and tube, and plate heat exchanger.
  • Demonstration of heat transfer under parallel or counter flow.
  • Demonstration of batch type heat transfer for jacketed vessel.
  • Determination heat transfer coefficient. Effects of flow rate and temperature difference.

  TECHNICAL DATA

  Heat exchangers:
  – Concentric tube	Stainless steel outer and inner tubes.
  – Shell and tube	Stainless steel shell and 7 inner tubes.
  – Plate	Stainless steel multiple plates.
  Stainless steel multiple plates. Service module consisting of:
  – Hot water pump.
  – Heater	3000 W
  – Flow meters	Hot water Cold water
  – Temperature control unit to limit temperature of hot water to not more than 80°C
  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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