A Kaplan turbine delivering 4O MW works under a head of 35 m and runs at 167 rpm.The hub diameter is 2.5 m and runner tip diameter is 5 m. The overall efficiency is 87%.Determine the blade angles at the hub and tip and also at a diameter of 3.75 m. Also find the speed ratio and flow ratio based on tip velocity. Assume nH = 90%. Outlet blade angle at the hub * 22.6 42.3 13.7 12.5

A Kaplan turbine delivering 4O MW works under a head of 35 m and runs at 167 rpm.The hub diameter is 2.5 m and runner tip diameter is 5 m. The overall efficiency is 87%.Determine the blade angles at the hub and tip and also at a diameter of 3.75 m. Also find the speed ratio and flow ratio based on tip velocity. Assume nH = 90%. Outlet blade angle at the hub * 22.6 42.3 13.7 12.5

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

A Kaplan turbine delivering 40 MW works
under a head of 35 m and runs at 167
rpm.The hub diameter is 2.5 m and runner
tip diameter is 5 m. The overall efficiency is
87%.Determine the blade angles at the hub
and tip and also at a diameter of 3.75 m.
Also find the speed ratio and flow ratio
based on tip velocity. Assume nH = 90%.
Outlet blade angle at the hub *
22.6
O 42.3
13.7
12.5

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