Centrifugal Fan Demonstration Unit – Computer Interface

Related products

• 

  • 
  • 

  Air Flow and Thermodynamics

  Centrifugal 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 DATA

  Blower 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)
• 

  • 
  • 
  • 

  Air Flow and Thermodynamics

  Two-Shaft Gas Turbine

  The turbine is a small two-shaft gas turbine engine with a radial flow compressor and axial flow turbines as in the modern gas turbine power plant.

  The first shaft is a hot gas generator. Inlet air through an orifice flow measuring device is compressed by a single stage radial flow compressor. The turbine is motor started and runs on Jet A fuel. Fuel is injected by a fuel pump and ignited in the combustion chamber providing hot gas for a single stage axial flow turbine which inturn drives the compressor. The hot gas is discharged axially to a larger power turbine on the second shaft and exhausts to atmosphere. A fan is provided for cooling the gear box.

  Speed of the power turbine is reduced by the gear box. A water brake absorber is connected to the gear box for power measurement. The brake requires outside water supply. Load is manually controlled.

  An Electronic Control Unit (ECU) controls the basic turbine operation. Additional instruments are provided for monitoring and controlling turbine performance.

  A touch screen computer with an interface unit and software are provided for speed and load control, data display and analysis, and to assist the ECU.

  Safety features include clear acrylic cover, gas generator over speed shutdown, power turbine over speed protection and power turbine entry over temperature shut down. The unit is floor standing with removeable supports.

  Instruction manual is also included.

  TYPICAL EXPERIMENTS

  • Understanding the thermodynamic process.
  • Torque vs speed.
  • Power input and output and engine efficiency.

  TECHNICAL DATA

  Gas generator construction
  – Diffuser	High strength aluminium.
  – Combustion chamber	Stainless steel
  – Bearings	Ceramic ball bearing.
  – Turbine wheel	Vacuum cast inconel.
  – Compressor	High grade aluminium alloy.
  Gas generator
  – Starting and running fuel	Jet A or kerosene with jet oil.
  Power turbine
  – Turbine wheel	Vacuum cast inconel,
  – Interstage guide vane	Stainless steel.
  Gear box
  – Type	Planetary.
  – Lubrication	Jet A.
  Dynamometer
  – Type	Water brake absorber.
  – Maximum power	Approx. 5 kW.
  Gear box and dynamometer connection.	Direct coupling
  Output power
  – Mechanical	Approx. 700 W.
  Sensors
  – Temperatures	Inlet air, diffuser exit, gas generator turbine entry, power turbine entry and exit.
  – Pressures	Diffuser exit, power turbine entry and exit.
  – Speeds	Gas generator and gear box output shaft.
  – Dynamometer torque.
  – Fuel flow rate.
  – Air flow rate	Differential pressure at inlet orifice.
  Accessories	Engine cooling fan Gear box cooling fan Engine exhaust duct 2 Ear muffs Jet oil Barometer
  Software for data display, analysis and control by computer (separately supplied)
  Power supply	220V, 1 Ph, 50Hz. Other power supply is available on request

  (0 reviews)