POWER CONSUMPTION IN AGITATED VESSEL
Many processing operations depend for their success on the effective agitation and mixing of fluids. Hence it is of great importance to study these agitated vessels. Liquids are most often agitated in some kind of tank or vessel usually cylindrical in form and with a vertical axis. Tank bottom is rounded to eliminate regions into which the fluid currents would not penetrate. In the present set-up agitation is done with the help of stirrer. A DC motor is coupled 10 SS Impeller and SS Shaft. Digital Voltmeter and Digital Ammeter can vary the speed of agitators with the help of Thyristor controlled DC DRIVE and power consumption is measured. Four replaceable baffles are provided to prevent swirling. One propeller and one turbine are provided which are interchangeable. Drain valve is also provided at the bottom. The whole set-up is mounted on a rigid MS frame structure. Range of EXPERIMENTS Ø To plot Power number Vs Reynolds number for the given set of impeller with baffled/ unbaffled mixing. UTILITIES REQUIRED Ø Electricity 500 Watts, 220V, 1 Phase Ø Water Supply. Ø Drain TECHNICAL SPECIFICATIONS
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Tank
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Material SS
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Dia. 12", Depth 18"
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Stirrer
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SS Impeller with SS Shaft coupled to Standard make
FHP DC Motor and Thyristor controlled
DC Drive with
Reduction Gear Box
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Agitator
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SS shaft & impellers (i.e. one propeller & one turbine)
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Baffles
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Material SS, 4 Nos. 2" width. (detachable)
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Control Panel
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RPM Measurement: Digital RPM Indicator, Non Contact
Type with Proximity sensor.
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Digital Voltmeter (DC): Standard make
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Ammeter (DC) Standard make
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On/off switch, mains indicator etc
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A good quality painted rigid MS Structure is provided to support all the parts.
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