Concept explainers
(a)
Determine the type of turbine in the prototype.
Answer to Problem 11.85P
The type of turbine in the prototype is propeller turbine.
Explanation of Solution
Given Information:
Head,
Speed of turbine,
Power,
Prototype diameter,
Model diameter,
Prototype
Speed of turbine,
Power,
Specific speed,
Here,
Therefore, from specific speed range table, the type of turbine in the prototype is propeller turbine
Conclusion:
The type of turbine in the prototype is propeller turbine.
(b)
Determine the appropriate head for the model test.
Answer to Problem 11.85P
The appropriate head for the model test is
Explanation of Solution
Given Information:
Head,
Speed of turbine,
Power,
Prototype diameter,
Model diameter,
Model head is given by,
Here, model turbine speed,
Conclusion:
The appropriate head for the model test is
(c)
Determine the appropriate flow rate for the model test.
Answer to Problem 11.85P
The appropriate flow rate for the model test is
Explanation of Solution
Given Information:
Head,
Speed of turbine,
Power,
Prototype diameter,
Model diameter,
Prototype flow rate,
Here, efficiency,
Model flow rate is calculated using the relation below,
Conclusion:
The appropriate flow rate for the model test is
(d)
Estimate the power expected to be delivered by the turbine model.
Answer to Problem 11.85P
The turbine model delivers
Explanation of Solution
Given Information:
Head,
Speed of turbine,
Power,
Prototype diameter,
Model diameter,
Power delivered by model is calculated by the below relation,
Conclusion:
The turbine model delivers
Want to see more full solutions like this?
Chapter 11 Solutions
Fluid Mechanics
- Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University PressMechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSONThermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
- Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEYMechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage LearningEngineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY