A Kaplan turbine working under a head of 20 m develops 11800 kW. The outer diameter of the runner is 3.5 m and hub diameter 1.75 m. The guide blade angle at the extreme edge of the runner is 35°. The hydraulic and overall efficiencies of the turbine are 88% and 84% respectively. If the velocity of whirl is zero at outlet determine. (i) Runner inlet and outlet vane angles at the extreme edge of the runner and (ii) Speed of the turbine. 16:
A Kaplan turbine working under a head of 20 m develops 11800 kW. The outer diameter of the runner is 3.5 m and hub diameter 1.75 m. The guide blade angle at the extreme edge of the runner is 35°. The hydraulic and overall efficiencies of the turbine are 88% and 84% respectively. If the velocity of whirl is zero at outlet determine. (i) Runner inlet and outlet vane angles at the extreme edge of the runner and (ii) Speed of the turbine. 16:
Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Chapter40: Typical Operating Conditions
Section: Chapter Questions
Problem 10RQ: The seasonal energy efficiency ratio (SEER) includes the energy used in the _____and _____cycles.
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Question
![A Kaplan turbine working under a
head of 20 m develops 11800 kW.
The outer diameter of the runner is
3.5 m and hub diameter 1.75 m. The
guide blade angle at the extreme
edge of the runner is 35°. The
hydraulic and overall efficiencies of
the turbine are 88% and 84%
respectively. If the velocity of whirl is
zero at outlet determine.
(i) Runner inlet and outlet vane
angles at the extreme edge of the
runner and
(ii) Speed of the turbine.
16:27](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F30f26767-4d2a-4e98-beff-92feaba1d65a%2F8c3b80ae-ce18-476d-8746-babde1ffef22%2Fadzid9_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A Kaplan turbine working under a
head of 20 m develops 11800 kW.
The outer diameter of the runner is
3.5 m and hub diameter 1.75 m. The
guide blade angle at the extreme
edge of the runner is 35°. The
hydraulic and overall efficiencies of
the turbine are 88% and 84%
respectively. If the velocity of whirl is
zero at outlet determine.
(i) Runner inlet and outlet vane
angles at the extreme edge of the
runner and
(ii) Speed of the turbine.
16:27
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