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How is film cooling of turbine blade done by internal convection through film holes?
Wiki User
∙ 10y ago
It's not really convection but conduction. This refers to the rotors in gas-turbines and jet engines. Air drawn in at the front of the engine is led via the hollow centre of the engine's shaft, to radial holes matching holes drilled up through the blades. Therefore, on its way through the blade the air takes in heat from the surrounding metal, and escapes in the exhaust stream.
Wiki User
∙ 10y ago
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What is the cooling system of gas turbine blade?
In order to enhance creep life of gas turbine blade, it is required to keep blade at lower temperature, hence internal cooling of blade is done.
Why you use cooling towers in thermal power station?
This is to cool the steam turbine condenser, where the steam outlet from the turbine's last stage is condensed before returning to the boiler feed pump inlets. The cooling towers circulate water that passes through tubes inside the condenser, separate from the steam/water in the boilers.
What is the use of cooling tower in power plant?
first mention which power plant in steam pp out come of the steam is cooled after it again passes through into the turbine
What does the airplane sound like?
airplanes make turbine power going up at take-off.In mid-air it makes a turbine at normal speed.At landing it makes turbine cooling down sound.
A solar-heated steam-electric generating plant heats steam to 250 C After passing through the turbine cooling towers cool the steam to 30 C?
The steam at 250Degc does it work and gets converted to mechanical energy by the turbine and to increase the efiiciency of the turbine the pressure is mentained below atmosphearic pressure at the exhust. It is not cost benificaial to handle (pump) this steam coming out of the exhust thus needs to be cooled to take it to liquide stage by cooling towers.
In a pressurized water-reactor the primary cooling water?
Boils in the core and is used to turn the turbine
How gas turbine work?
Gas turbine works with the use of many kinds of fuel to run a compressor. The compressor will bring the atmospheric air flows through its highest pressure and with the addition of fuel into the air it will ignite and then the combustion will generate a high-temperature flow.
How will cooling towers inprove the efficiency of power stations?
The efficiency of the Rankine cycle depends on extracting as much energy from the steam flow through the turbine as possible, and to do this you need to have as low a vacuum in the condenser as possible. The lower the temperature of the cooling water flow through the condenser, the lower the vacuum that can be achieved. Cooling towers are often the best solution, though plants on a large lake or the ocean can use direct cooling supplies from that source and this may give better efficiency. It all depends on the cooling water temperature that can be achieved.
What are the most important parts of a nuclear plant?
reactor, steam turbine, and a (hopefully working) cooling system.
What has the author Dwight Osten Ness written?
Dwight Osten Ness has written: 'Boundary layer control as a method of gas turbine blade cooling' -- subject(s): Aeronautics 'Boundary layer control as a method of gas turbine blade cooling' -- subject(s): Aeronautics
Why does gas turbine trips on high exhaust tempr spread?
nozzle fouling, restricted cooling, component wear
Are airplanes powered by steam engines?
No. They are powered by internal combustion engines. Or by gas turbine jets.
