The Kaplan turbine works because the curved blades of the rotor are optimized to turn in relation to the velocity of the water flowing through the turbine. The curved blades generate maximum force to produce the most amount of energy possible. Kaplan turbines were invented by Austrian engineer Victor Kaplan near the beginning of the 20th century.Know More
Kaplan turbine rotors vary in size from 2 feet up to 16 feet in diameter. Output of such turbines varies from 75 kilowatts up to 1 megawatt. Kaplan turbines resemble motor boat rotors in that they have a nosecone to optimize hydrodynamic motion. Some Kaplan models have adjustable blades for various flow rates.
Guide vanes move water in a spiral motion to further optimize electrical output. Spiraling water runs faster without extra energy pushing the water through the system. Because the design is capable of being used on small and large scales, the Kaplan turbine design is one of the most widely used in the world.
The original Kaplan design features a vertical shaft and the generator inside the casing. This type of Kaplan turbine has its entire apparatus submerged in water. This variant of hydroelectric generation is based upon the Francis turbine.Learn more about Homework Help
A steam turbine functions when highly pressured gaseous water, or steam, passes along the rotor through the multiple alternatively fixed and moving blades. A running generator converts the resultant kinetic energy into electrical energy. This is one of the most efficient sources of energy.Full Answer >
On the Fahrenheit scale, water boils at 212 degrees and freezes at 32 degrees. On the Celsius scale, it boils at 100 degrees and freezes at 0 degrees. To convert between the two systems, you must perform some basic calculations using the formula (°C × 9/5) + 32 = °F.Full Answer >
A rotary vane vacuum pump works by using centrifugal force to turn blades against the circular surface of a cylinder whereby pockets of air are pushed from an inlet port to an outlet port as air pressure increases. Air pressure changes from the inlet port to the outlet port because the volume of air decreases inside the cylinder when the blades turn.Full Answer >
Hydroelectric energy converts the kinetic energy of flowing water into electricity using a turbine. Water flows through a channel, usually carefully regulated as part of a dam spillway, and it turns the blades of the turbine. As long as water continues to flow steadily, the turbine produces a steady stream of electricity. The U.S. Geological Survey Science School states that 19 percent of the world's electricity comes from hydroelectric energy.Full Answer >