Francis turbine rotation
Not what you're looking for?
1. Water flows at a rate of 19.8m^3/s through a Francis turbine rotating at 228rpm. At the inlet to the runner, the runner diameter is 1.8m, the blade length is 30cm, and the relative flow angle is 29 degrees, measured from the radial direction. The fluid leaves the runner without swirl, and the hub and tip diameters at runner exit are 0.2m and 1.2m, respectively.
(a) Sketch the runner velocity diagrams, labelling all velocities and angles.
(b) Find the values of all velocities and angles, for the tip flow.
(c) Find the power output, if the turbine is 81% efficient.
2. A 1/10 scale model of the turbine was tested under a head of 22m. Find the speed, flow rate and power of the model turbine, under similar flow conditions.
Purchase this Solution
Solution Summary
Francis turbine rotation equations are included
Purchase this Solution
Free BrainMass Quizzes
Architectural History
This quiz is intended to test the basics of History of Architecture- foundation for all architectural courses.
Air Pollution Control - Environmental Science
Working principle of ESP