Features:
Tesca Venturi Air Scrubber Trainer consists of mainly a transparent cylindrical venturi, a separation chamber, a water re-circulation system, a dust feeding system, and a variable speed air blower. Instruments for the measurement of the incoming air flow and pressure drops across the convergence and divergence sections of the venturi are provided. The unit has been designed for student demonstration on dust pollution control using a venturi scrubber.

The venturi section is made of clear PVC with throat diameter of 32 mm and both convergence and divergence diameter of 101.6 mm. The separation chamber is also made of clear PVC measuring approximately 0.6 m diameter and 2 m tall. The chamber has a rectangular tangential inlet at the bottom that is connected to divergence section of the venturi. A mist eliminator at the top section of the chamber prevents any water droplets from escaping. The water re-circulation system consists of a water tank, a water pump, a liquid flow meter, a pressure gauge and a pressure regulator. An air blower installed at the outlet is capable of drawing 280 m3/hr of air through the system. The air inlet velocity can be varied by means of adjusting the air blower speed. A dust feeding system is provided for introducing a desired amount of dust particles into the air stream before entering the separation chamber. A differential pressure instrument is provided for the purpose of measuring pressure drop, P, across the venturi.
Technical Specifications Venturi:
Made of clear acrylic
Inlet & Outlet ID: Approx. 100 mm
Throat dia. (id): 32 mm
Convergent Angle 10.5 Deg
Divergence Angle 5 Deg.
Separation chamber
Material Rigid Acrylic Glass
Cylindrical chamber. Size: 0.4 m (dia.) X 1.4 m (h).
Tangentially Connected to a circular inlet
Mist eliminator at top made in Stainless steel
Removable effulent collector tank made in plastic
Water re-circulation system:
55 L rectangular tank made of stainless
Level Switch
Centrifugal pump
Pump Flow Rate: 25 L/m (Max.)
Flow Meter: 0-10 LPM
Air blower:
Air Delivery: 280 m3/hr @ 3400 RPM
Max. Static Pressure: 20 kPa
Blower Speed Control: Frequency Inverter
Air velocity meter: Venturimeter with differential pressure gauge, Differential Pressure Range 0-20 kPa
Feeding System: Acrylic Tank with inlet nozzle
Control Console
Material: Coated Steel box
Waterproof panel Sticker
Housing for electrical & electronic component
Mobile steel structure

Experimental Capabilities
Demonstration   of   Venturi   scrubber   in   dust pollution control.
To study the effect of liquid-to-gas (L/G) ratio upon separation efficiency.
To verify the theoretical relationship between total pressure drop, P and inlet velocity, vi.

Required Services
Electric Supply 415 V AC, Three Phase, 50 Hz.
Floor Space: 4 m x 2 m