Fundamental principle of all gas fired power and steam is Bycle Brayton. If we only talk about the power plant then we have to think about open-cycle but if you want to know the duty cycle PLTGU then we need to know about the combined cycle.
PLTG cycle starts from taking the air by the compressor. In this air compressor is processed so that the pressure rises. Air is introduced into the combustion chamber Combustion or together with fuel (gas / petrol). Burning gas produces pressure and high temperature (temperatures around 2000 degrees Celsius). This pressurized gas that drives the gas turbine (Well've just described, what is meant by "gas"). Turbine spin, spin and electric generators also come generated. After turning the turbine, the gas is discharged in the atmosphere. The cycle is complete.
In addition to simple, single unit power plant also does not take place too broad. Construction is also relatively more quickly than other generating units. Construction costs were also relatively cheaper. It's just because it works at high pressure and temperature, the components of power plant called Hot Parts become quickly damaged and require serious attention. Not to mention the hot parts are most valuable so expensive that very large power plant maintenance costs.
Back at the power plant cycle, the cycle power plant which is often called the Open Cycle. The products of combustion, turbine inlet, and then discarded. Temperature and gas pressure is removed is usually still quite high. Ranging from 500 degrees Celsius so that real pity if directly discharged. Should it be as hot gas to evaporate water, and steam can be used to turn turbines. Well, on thinking like that, whose name appears Combined Cycle Power Plant (Gas Steam Power Plant).
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