What is the function of the turbine in the power plant?
The gas turbine is the engine at the heart of the power plant that produces electric current. A gas turbine is a combustion engine that can convert natural gas or other liquid fuels to mechanical energy. This energy then drives a generator that produces electrical energy.
How is the turbine used to create electricity?
A wind turbine turns wind energy into electricity using the aerodynamic force from the rotor blades, which work like an airplane wing or helicopter rotor blade. This translation of aerodynamic force to rotation of a generator creates electricity.
What is the use of turbine?
A turbine is a device that harnesses the kinetic energy of some fluid – such as water, steam, air, or combustion gases – and turns this into the rotational motion of the device itself. These devices are generally used in electrical generation, engines, and propulsion systems and are classified as a type of engine.
Which is reaction turbine?
A reaction turbine is a type of turbine that develops torque by reacting to the pressure or weight of a fluid. The operation of reaction turbines is described by Newton’s third law of motion (action and reaction are equal and opposite). The pressure of the fluid changes as it passes through the rotor blades.
Which of the following is an example of reaction turbine?
Explanation: Pelton Wheel Turbine is an example of impulse Turbine.
Which of the following is high head turbine?
Pelton turbine
How do you classify a turbine?
CLASSIFICATION OF TURBINES According to the type of energy at inlet: Impulse turbine Reaction turbine. According to the direction of flow through runner: Tangential flow turbine Radial flow turbine Axial flow turbine Mixed flow turbine.
Which is medium head turbine?
The turbines that work under a head of 45m to 250m are called medium head turbines. It requires medium flow of water.
What is specific speed of turbine?
The specific speed value for a turbine is the speed of a geometrically similar turbine which would produce unit power (one kilowatt) under unit head (one meter). The specific speed of a turbine is given by the manufacturer (along with other ratings) and will always refer to the point of maximum efficiency.
What is runaway speed of turbine?
The maximum speed that can be reached at the Pelton wheel is called the runaway speed, at which the jet almost completely bypasses the Pelton wheel, without transferring its energy to the rotating buckets. The runaway speed is about twice the nominal speed of the Pelton wheel.
How efficient is a water turbine?
Hydroelectric powerplants are the most efficient means of producing electric energy. The efficiency of today’s hydroelectric plant is about 90 percent.
How much power does a water turbine generate?
A standard micro hydro system (where water is channelled in a pipe) should have at least 50% overall efficiency, after all losses. A small low-head turbine could generate about 1 kilowatt (1000 watts) from a flow of 100 litres per second dropping through 2 metres.
What is a runner in a turbine?
Turbine Runner The runner is the heart of the turbine. This is where water power is transformed into the rotational force that drives the generator. Regardless of the runner type, its buckets or blades are responsible for capturing the most possible energy from the water.
Where is Francis turbine used?
A Francis turbine is a type of reaction turbine used most frequently in medium- or large-scale hydroelectric plants. These turbines can be used for heads as low as 2 meters and as high as 300 meters.
What is meant by turbine?
A device or machine that converts the kinetic energy of a fluid (air, water, steam or other gases) to mechanical energy.
What are the parts of turbine?
15.1 includes 14 major components common to many modern wind turbines: three blades, three pitch bearings, a hub, main bearing, main shaft, gearbox, generator, main frame, yaw bearing, and tower.