FL 07.2 – Centrifugal Fan
This equipment has been developed for the study of the characteristics of a centrifugal fan, through the realization of a wide range of practices and experiences.
A pitot tube allows the measurement of air velocity at any diametral point of the tube, measuring the position of the tube through a digital display.
The vertical and inclined manometers allow a correct reading of the pressures.
The equipment is supplied with 2 different impellers (blades tilted forward and backward), which can be exchanged in a very simple way. Through a control of 3 positions we control the direction of rotation of the motor.
The frequency shifter allows the variation of the speed of rotation, while we observe the consumed electrical power in a wattmeter.
Through a conical cap in the air outlet we can cause an adjustable pressure drop, and study the operating points of the fan.
- Study and obtaining the characteristic curves of a centrifugal fan of straight blades.
- Static pressure – flow (Dpe – Q).
- Total pressure – flow (DPt – Q)
- Power – flow (P-Q)
- Efficiency – flow (h-Q).
- Study and obtaining the characteristic curves of a centrifugal fan of forward curved blades.
- Static pressure – flow (DPe – Q)
- Total pressure – flow (DPt – Q)
- Power – flow (P-Q)
- Efficiency – flow (h-Q).
- Study of the regulation of a centrifugal fan by varying its speed of rotation. Obtaining new characteristic curves at different revolutions.
- Use of the Pitot tube. Difference between static, dinamic and total pressure.
- Obtaining the profile of flow velocities in the suction line.
- Measurement of the flow using the Pitot tube.
- Aspiration pipe
- Øinterior = 114 mm
- Øexterior = 120 mm
- Impulsion pipe
- Øinterior = 114 mm
- Øexterior = 120 mm
- Maximum pressure increase 700 Pascales.
- Maximum flow 1.000 m3/h.
- Rated power of the engine 250 W.
- Rotational speed 2.810 r.p.m. a 50 Hz.
- Manómetros verticales de 100 mm.c.a.
- Manómetro inclinado 50 mm.c.a.
- Frecuency variable:
- Rated power of the engine: 0.37kW
- Maximum current of the input fuse: 10A
- Input current at typical full load: 5.8A
- Output Current RMS 100%: 2.2A
- Intensity of overload 150%(during 60seg): 3.3A
- Minimum value of brake resistor 68Ω.
- Power indicator 0-400W
- Pitot tube Ø3 mm in L de 200mm lenght.
- Supplied impellers:
- With blades inclined forward.
- With blades inclined backward.
- Power Supply: 230V/50Hz.
