C3-MKIIMulti-Pump Test Rig Didactic Equipment Vocational Training Equipment Fluid Mechanics Lab Equipment
DESCRIPTION The Multi-Pump Test Rig has been designed to demonstrate the operating characteristics (headflow curves and efficiency) of a series of different types of pumps, each having a broadly similar input power. The Multi-Pump Test rig can accommodate both rotodynamic and positive displacement pumps, and is supplied with the most common example of each type as standard (ie a centrifugal pump and a gear pump). A range of other pump types are available as accessories, (including axial, turbine, flexible impeller, diaphragm and plunger, plus a second centrifugal pump for series/parallel demonstrations). Up to four pumps can be accommodated simultaneously within the rig for use within a single laboratory period, and each can be run without disconnecting any pipework or connections. Further pumps can also be easily interchanged. Each pump accessory comes on its own baseplate, assembled complete with all pipes, valves and fittings to enable it to be easily fitted to the C3-MkII. Different types of fitting are used for different positions in order to help prevent incorrect fitting. This new system benefits from electronic instrumentation, control and data logging using a PC (not supplied) and the use of a sensorless vector drive to accurately determine the torque provided by the drive motors. As an option, the unit can be fitted with two identical centrifugal pumps to enable simple series/parallel pump configurations to be demonstrated. EXPERIMENTAL CONTENT Determining the performance of different types of pumps at constant speed by producing a set of characteristic curves: For rotodynamic pumps – Pressure head vs flow – Power absorbed vs flow – Pump efficiency vs flow For positive displacement pumps – Flow vs pressure head – Power absorbed vs pressure head – Volumetric efficiency vs pressure head Rotodynamic Pumps – Centrifugal Pump – Centrifugal Pump in series and parallel – Axial Flow Pump – Turbine Pump Positive Displacement Pump – Gear Pump – Flexible Impeller Pump – Diaphragm pump – Plunger Pump (Piston Pump)
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