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Consider the following statements in connection with hydraulic turbines: 1. The Kaplan turbine is a radial flow turbine in which the guide vane angles as well as the runner vane angles are adjustable. 2. Francis and Kaplan turbines are provided with draft tubes which carry water from exit of runner to tail water to increase the gross head across the turbine. 3. The parts of turbines susceptible to cavitation are the guide vanes and runner vanes – drastically reducing the turbine efficiency. 4. The specific speed of a 4-jet Pelton turbine will be 28 if the specific speed of a single-jet Pelton turbine is 14. Which of the above statements are correct?
Consider the following statements regarding turbines: I. the main function of a governor is to maintain a constant speed even as the load on the turbine fluctuates 2. In the cast of Pelton turbines, the governor closes or opens the wicket gates 3. In the case of Francis turbines, the governor opens or closes the needle valve 4. In the case of a Kaplan turbine, the governor swings the runner blades appropriately in addition to further Closing or further opening of wicket gates Which of the above statements are correct?
400 cumecs of water are being released from dam storage to meet the downstream demand through the turbines of the connected hydro plant. The effective head of water acting on the turbines is 50 m. The efficiency of the hydro plant is 0.8. The electrical power generated from this plant is __________________
Kaplan turbines are found to be more versatile and costly in their initial cost as compared to propeller turbines.
Radial flow reaction turbines are those turbines in which water flows ____________
Gas turbines burn fuel to run their turbines.
__________ extraction turbines are combined heat and power supply turbines.
On the basis of method of governing, steam turbines are classified into turbines with _____
In Gas Turbines, Turbine is used to convert _________
Micro turbines are used to power _________