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Air Flow Studies Apparatus Manufacturer,Supplier and Exporter in India

Product Code : SCL-CELE-14143

I. Overview and Purpose

Fluid mechanics, with applications in air conditioning, aerospace, and industrial distribution systems, is a crucial subject. This Air Flow Studies Apparatus is a self-contained, compact unit designed to demonstrate the basic principles of fluid mechanics by analyzing characteristics of a typical industrial air distribution system.

This equipment is essential for mechanical, civil, chemical, aeronautical, environmental, and related engineering courses at certificate, diploma, and degree levels. It allows students to study principles of fluid mechanics by analyzing flows in ducts and jets.

II. Apparatus Description

The unit is mounted on a steel frame with leveling capability.

Air Supply A centrifugal fan is used for air circulation. Turbulence in the pipe is minimized by using a suction fan and flow straightening vanes to reduce vortex formation.
Flow Channel The apparatus consists of a long, smooth-walled pipe (fiber-glass or stainless steel) connected to the fan's suction side via a bell mouth entry. The bell mouth prevents flow separation at the entrance.
Flow Control The fan discharge pipe ends in either a flow control damper (for closed-circuit operation) or a plate with an aperture to create a jet.
Measurement Features

Flow Rate Measured using two interchangeable nozzles and an orifice plate based on differential static pressure.
Pressure Gradient Static pressure taps are provided at equal intervals along the pipe length.
Losses A bend or mitered cascade elbow can be fitted to measure pressure loss in duct fittings.
Velocity Profiles A Pitot probe can be traversed at six stations along the pipe length to measure boundary layer growth and mean velocity profiles.
Jet Flow A Pitot-static probe can be traversed in two perpendicular directions at several stations along the jet to study jet characteristics and dispersion.

Instrumentation Pressures are measured using a 15-tube inclined manometer with Kerosene fluid, designed for sensitive pressure measurements.

III. Measurements

The apparatus allows for direct measurement of the following parameters:

Static pressures.
Total pressures.
Flow velocity.
Pressure gradient.
Pressure loss.
Flow rate.

IV. Experiments

The unit supports comprehensive laboratory investigations:

Measurement of pressure using a manometer.
Measurement of total pressure using a Pitot probe.
Measurement of flow velocity using a Pitot-static probe.
Measurement of flow rate using nozzles.
Measurement of flow rate using an orifice plate.
Measurement and understanding of velocity profiles.
Measurement of boundary layer and velocity profiles in duct flows.
Study of the effect of Reynolds number in duct flow.
Measurement of static pressure gradient in duct flow.
Study of pressure loss flow rate correlation in duct flow.
Measurement of velocity profiles in jet flow.
Measurement of jet spread or dispersion.
Measurement of pressure loss in duct fittings (bends and mitred cascade elbow).
Study of the laws of conservation of mass and momentum to describe flows in practical geometries (ducts, bends, nozzles, orifice, and jets).

V. Important Components and Specifications

Component	Feature or Specification	Detail
Centrifugal Fan	Capacity (approx.)	250 LPS (Liters per second) at STP
Pipe	Material	Tough fibre-glass or stainless steel
	Length	3 m
	Inlet Diameter	Approximately 80 mm
Air Velocity (Pipe)	Maximum	35 m/s
Inlet	Feature	Bell mouth entry
Flow Rate Devices	Interchangeable Nozzles	2 nozzles (50 mm and 80 mm diameter)
	Orifice Plate	50 mm ID
Jet Discharge Pipe	Diameter	30 mm
Jet Traverse	Range	160 mm X 600 mm
Manometer	Type	Multi-tube inclined
	Tubes / Length	15 tubes, 0.6 m long
	Manometer Fluid	Kerosene
Loss Accessories	Included	Bend and Mitred cascade elbow
Probes	Included	Pitot probe and Pitot-static probe
Traverses	Included	Probe traverse for duct flow and jet flow measurements
Overall Dimensions (H x W x L)	Unit Size	0.8 m x 1.0 m x 4.0 m
Services Required	Electrical Supply	1-phase, 220 - 240V, 50 Hz

VI. Airflow Principles (Supplementary Unit)

This unit is part of a series for studying air flow fundamentals.

Component	Feature or Specification	Detail
Radial Fan	Max Power Consumption	90 W
	Speed	2800 min-1
	Max Flow Rate	460 cubic meters/hour
	Max Differential Pressure	480 Pa
Delivery Pipe	Outer / Inner Diameter	110 mm / 99.4 mm
Intake Pipe	Outer / Inner Diameter	140 mm / 134.4 mm
Max Velocity	Output	Up to 9 m/s
Features	Airflow Adjustment	Throttle valve on delivery pipe
	Flow Stabilization	Inlet contour on intake pipe minimizes turbulence
Measurements	Pressure Ranges	1x 0-1000 Pa, 2x 0-100 Pa
	Temperature Range	-40 to 150 degrees C
	Velocity Determination	Via dynamic pressure measurement
	Flow Rate Determination	Via inlet contour differential pressure
Services Required	Mains Supply	230V, 50Hz, 1 phase

VII. Venturi Tube Accessory

This accessory is used in the measuring section to create a Venturi-shaped flow profile, ideal for investigating core fluid mechanics principles.

Principles Demonstrated Continuity Equation and Bernoulli's Principle.
Function A change in cross-sectional area leads to a measurable change in static pressure.
Measurements Static pressure is measured via six pressure measurement points along the section. Dynamic pressure is calculated as the difference between total and static pressure.
Technical Specifications

Inner Diameter: 84.6 mm to 59 mm.
Pressure Measurement: 6 static pressure measuring points.

Experiments Examination of the Continuity Equation and Bernoulli's Principle, Determination of dynamic pressure, Calculation of flow velocity, Representation of pressure distribution vs. cross-sectional area.