Francis Turbine Test Setup

DESCRIPTION:-

Francis Turbine is a reaction Turbine, which was developed by English born American Engineer Sir J.B. Francis. The water enters the turbine through the outer periphery of the runner in the radial direction and leaves the runner in axial direction and hence it is called a mixed flow turbine. As the water flows to the runner, a part of pressure energy goes on changing into kinetic energy. Thus the water through the runner is under pressure. The runner is completely enclosed in an air tight casing and the casing & runner is always full of water.

The present Set-up consists of a runner. The water is fed to the turbine by Means of centrifugal Pump, radially to the runner. The runner is directly mounted on one end of a central SS shaft and other end is connected to a brake arrangement. The circular window of the turbine casing is provided with a transparent. The circular window of the turbine casing is provided with a transparent acrylic sheet for observation of flow on to the runner. The runner assembly is supported by thick cast iron pedestal. Load is applied to the turbine with the help of brake arrangement so that the efficiency of the turbine can be calculated. A draught tube is fitted on the outlet of the turbine. The Set-up is complete with guide mechanism. Pressure and vacuum Gauge are fitted at the Inlet and Outlet of the turbine to measure the total supply head on the turbine.

EXPERIMENT:-

Ø To study the operation of a Francis Turbine
Ø To determine the Output Power of Francis Turbine
Ø To determine the Turbine Efficiency

UTILITIES REQUIRED:-

● Water Supply and Drain. ● Electricity 15 kW, 440V Ac, Three Phase

TECHNICAL SPECIFICATIONS: -

MODEL	HM 102 (1.33 HP)	HM 102 (2 HP)	HM 102 (5 HP)
Output Power	1.33 HP / 1 Kw	2 HP / 1 Kw	5 HP / 3.75 Kw
Discharge	1000 LPM (Approx.)	1000 LPM (Approx.)	2000 LPM (Approx.)
Supply Head	10 m	10 m	15 m
Rope Brake Dynamometer	Dia 200 mm	Dia 200 mm	Dia 300 mm
Sump Tank	Capacity 300 Ltrs.	Capacity 300 Ltrs.	Capacity 600 Ltrs.
Water Circulation Centrifugal Pump	Capacity 5 HP, Three Phase	Capacity 5 HP, Three Phase	Capacity 15 HP, Three Phase
Speed	1500 RPM (approx.)
Runner	Having Curved Vanes
Discharge Measurement	Pitot Tube with Manometer
Control Panel	Star/Delta Starter, Mains Indicator, MCB for overload protection
The whole set-up is well designed and arranged in a good quality painted structure.