IN IN1127KO2013A
The invention relates to a novel design of the guide apparatus including the mechanism for controlling the movement of guide varies of model Francis turbines such that the said mechanism can be universally used for testing Francis turbines models of all specific speeds for the complete working range of model runner discharge diameters as per requirement of the experimental test-bed set up. The novel guide apparatus replaces the conventional one consisting of only turning joints with a combination of turning joints and a sliding joint in conjunction with a number of newly designed features such that the universal mechanism can be applied for testing Francis turbine models of all specific speeds with equal number of guide vanes irrespective of the value of Guide Vane Pitch Circle Diameter (PCD).
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