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Forced Convection Apparatus

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Forced Convection Apparatus

Forced Convection Apparatus: Scientific Equipment

  • The LABAPPARA unit consists of mainly a centrifugal blower, electrically heated test section, control valve to regulate the airflow and an orifice-meter and U-tube water manometer for flow measurement.
  • Thermocouples are used to measure the pipe wall temperature and also the air temperature at inlet and exit.
  • The apparatus mainly designed to find out the value of heat transfer coefficient under the air different conditions.


  • Heat transfer in forced convection can be studied well.
  • The value of heat transfer coefficient is calculated under various fluid flow conditions.
  • Ideal for group studies & demonstration.
  • Test pipe – 32mm NB GI pipe, 500 mm. long, heated by band heater, outside.
  • Centrifugal blower to force air through test pipe with How control valve.
  • Variac 2A, capacity to force air through test pipe with flow control valve.
  • An orifice meter with differential water manometer.
  • Voltmeter and Ammeter to measure heater input.
  • Multichannel digital temperature indicator to measures various temperatures.
  • A technical manual accompanies the unit.


  • Temperature indicator = 0 –300 0C
  • Ammeter = 0 – 5 A
  • Voltmeter = 0 – 300 V
  • Dimmerstat = 1000 watt
  • Heater =Mica Covered Type
  • Delivery Pipe Diameter (di) = 0.032 m
  • Length of test Section (L) = 0.44 m
  • Orifice Meter Diameter (do) = 0.014 m
  • Blower = 1/3 H.P. Single Phase with Motor
  • Manometer = Water Manometer
  • Test Section Insulation = Asbestos Rope
    Services Required:

    • Bench area of about 1m. x 0.75 m. at working height
    • 239V, 15A, AC, supply with earthing connection



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To study the temperature distribution along the length of test section by -Forced convection