Gas Turbines
A gas turbine is commonly referred to as a continuously running engine. Gas turbine design and its operation principle are described below. Specific feature of such engine is that energy is produced inside it by compressed or heated gas which conversion result is mechanical work on the shaft.
History of the gas turbine
Interestingly, engineers began to develop turbine mechanisms a long time ago. The first primitive steam turbine was created in the first century B.C.! Of course, this mechanism has reached its significant flowering only now. Turbines began to be actively developed at the end of the 19th century simultaneously with development and improvement of thermodynamics, mechanical engineering and metallurgy.
Principles of mechanisms, materials, alloys changed, everything was improved and nowadays mankind knows the most perfect of all previously existing forms of gas turbine which is divided into different types. There is an aviation gas turbine, and there is an industrial one.
Technical specifications of gas turbine
The gas turbine is commonly referred to as a kind of heat engine, only one task is predetermined to its working parts - to rotate due to impact of a gas jet.
It is designed so that the main part of the turbine is represented by a wheel to which sets of blades are attached. Gas acting on blades of the gas turbine makes them move and rotate the wheel. The wheel in its turn is rigidly attached to the shaft. This tandem has a special name - turbine rotor. As a consequence of this movement occurring inside the gas turbine engine, mechanical energy is obtained which is transferred to the electric generator, to the ship propeller, to the airplane propeller and other working mechanisms of a similar principle of action.
Active and reaction turbines
Gas jet impact on turbine blades can be dual. Therefore, turbines are divided into classes: the active turbine class and the reaction turbine class. The difference between the reaction and active gas turbine is in the design principle.
Active turbine
The active turbine is characterized by high rate of gas flow to working blades. The gas jet using a curved blade is diverted from its movement trajectory. Strong centrifugal force develops as the deflection result. Blades are set in motion by this force. During the entire described gas travel, some of its energy is lost. Such energy is aimed to move the impeller and shaft.
Reaction turbine
It's a little different in a reaction turbine. Here gas is flowing to the working blades at low speed and driven by high pressure level. The shape of blades is also excellent so that the gas velocity increases significantly. Thus, the gas jet creates a kind of reactive force.
It follows from the mechanism described above that the gas turbine design is quite complicated. In order for such a unit to work smoothly and bring profit and benefit to its owner its maintenance should be done by professionals. Service core business companies provide service for plants using gas turbines, supplies components, all kinds of parts and details. DMEnergy is one such company that provides its customer with calm and assurance that the customer will not be left alone with problems that arise during gas turbine operation.