A turbine is a machine that has a rotor of some sort that spins as a reaction to the flow of a fluid of some kind. A generator can be one of may things, but we often associate that term to a piece of equipment that converts mechanical energy into electromagnetic energy, or electricity. That said, the turbine could be connected to the generator to produce electricity from mechanical energy. The turbine is all about mechanical energy, and the generator converts mechanical energy into electric energy.
In a ram-jet the forward momentum of the engine allows the incoming mass of cold air to be both the firewall and self-charger. Fuel is burnt to create expansion of the charge gas, the escape of this hot gas from the jet nozzle is the thrust produced by the engine. If such an engine is started on the ground, it behaves like a large space heater, i.e. no thrust at all.
One solution to this low-forward speed / no thrust dilemma is the gas-turbine engine. This has an arrangement whereby some of the power generated by the combustion gasses is used to drive a rotary turbine shaft which, in turn, drives a rotary compressor. The compressor creates a flow of high-speed cold gas which is fed into the combustion chamber(s) of the engine. This air mimics the flow in a pure ramjet. Thus the blades in the turbine shaft act as a power takeoff (i.e. a windmill); the blades in the compressor act like a pump. The essential difference between the blade assemblies are:
The turbine section has two or three rows, the blades are relatively small and have to be made to withstand high temperatures without shattering, creep-distorting or melting. The blades have complex internal passages to allow cooling air to be fed internally during operation. Sealing arrangements between the blades and the engine casing have to cater both for the high temperatures and pressures during cruise opperation and the expansion of the turbine assembly between startup and cruise operation.
The compressor blades are much more variable in length, they deal with relatively cold air so they do not need such complex internal shapes, exotic Metallurgy or complex tip-sealing. An axial-flow gas turbine would have twenty plus rows of blades, largest towards the intake of the engine.
The airfoil sections of each blade type reflect their use, (suck or blow) but are essentially similar in actual shape and operation.
A 'turbine' is an example of a prime mover, the device which drives a generator. Turbines may be driven by steam, gas, or by water. A 'generator' is a device which converts kinetic energy into electrical energy.
The Second Stage Turbine Blade was created on 2002-02-05.
Decreasing the blade length will increase the rotation speed, and thus the turbine speed ( for constant wind speed ).
turbine blade angle is that angle with which,a high presseure & high temprature steam is made to empenge on it.
Essentially a turbine looks like a jet engine in reverse, where steam, gas, or liquid is forced through at speed or high pressure to turn a central rotor. if we cut one open the turbine looks like a series of fans inside a tube. Each fan from the from of the tube gets progressively smaller pitched blades.In between each moving blade is a static fan blade to redirect the wake of the previous blade section and increase the speed of the turbine rotor.
Shearing requires one blade to pass over another blade or a fixed edge. Cutting only requires one blade.
Another name for a turbine blade is a vane.
What are the main reason of turbine blade failure?
pump is used to handle liquid and compressor is used to handle gases. other difference include blade shape etc..
axial shift depends upon the gap between rotot blade and fixed blade , not on float
the difference between soul blade and soul blade platinum lies in its combats and quests which are the most important elements.
The Second Stage Turbine Blade was created on 2002-02-05.
Decreasing the blade length will increase the rotation speed, and thus the turbine speed ( for constant wind speed ).
turbine blade angle is that angle with which,a high presseure & high temprature steam is made to empenge on it.
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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.
The length of a blade depends on the style (impulse or reaction), the overall size of the turbine, whether it is an axial flow or radial flow turbine, and where the blade is located within turbine of an axial flow turbine. One thing that is constant: the length of the blade increases from the steam or gas inlet to the discharge of the unit. The profile will gradually increase in diameter from inlet to discharge.
A ball park figure for the weight of a double decker bus might be about 15,000 kilograms. But to calculate the centrifugal force on a turbine blade with this hanging from it would require the blade length and the rotational speed of the turbine.