Additional information
| Brand | Essom |
|---|
Free and Forced Vortex: Rotating Tank
This equipment is designed to produce and measure free and forced vortices. It is to be used with Hydraulics Bench i.e. HB100 or HB100N (separately supplied).
The equipment consists of a clear acrylic cylindrical tank inside which is another smaller perforated clear acrylic cylinder. The tank is rotated by a small motor. A small hole is provided at the center of the bottom of the tank. A forced vortex is formed when a fixed amount of water is contained in the rotating vessel. A free vortex is formed when water is admitted at the annulus and drain through the bottom hole. A cross bar with scale and a sliding probe holder are provided above the vessel. Water surface profile is measured by a depth probe attached to the cross bar. A transparent tube with built-in pitot probe to measure total head is also attached to the cross bar.
TYPICAL EXPERIMENTS
- Determination of the surface profile of a free and forced vortices
- Determination of velocity
TECHNICAL DATA
| Orifice diameters | 3 different sizes. | |
| Depth probe | 1 ea. | |
| Pitot tube | 1 ea. | |
| Portable tachometer | 1 lot. | |
| Power supply | 220 V, 1 Ph, 50 Hz or as required | |
| Software for data display and analysis by computer (separately supplied). | ||
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It consists of a precision machined stainless steel piston and cylinder with calibrated weights. The weights are applied on the upper end of the piston rod to generate pressure. The assembly is mounted on adjusting screws with a bull’s eye level. The pressure gauge is connected to the cylinder, thus subject to known pressure and comparison with the gauge reading can be made. Leaking liquid from the cylinder is returned to a reservoir. The cylinder can be simply refilled with liquid from the reservoir without removing the piston.
TYPICAL EXPERIMENTS- Calibration of a pressure gauge
- Determination of gauge errors as a function of true pressure
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Hydraulic Studies and AccessoriesMini Axial Flow Propeller Turbine
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The turbine fixed guide vanes direct water helically to the runner. Inlet-pressure is indicated by a manometer. Torque is measured by a Prony brake with two spring balances. Speed is indicated on a portable tachometer. Flow rate is measured by the Hydraulics Bench measuring tank.
TYPICAL EXPERIMENTS- Efficiency of Axial flow propeller turbine
- Characteristic of Axial flow propeller turbine
- Turbine torque and power output versus speed and flow rate at various heads.
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