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Introduction. GE offers both heavy-duty and aircraft-derivative gas turbines for power generation and industri-al applications. The heavy-duty product line con-sists of five different model series: MS3002, MS5000, MS6001, MS7001 and MS9001.
of the three major gas turbine elements: the compressor, the combustor, and the turbine. GAS TURBINE DESCRIPTION The Gas Turbine Cycle The gas turbine cycle is a constant flow cycle with a constant addition of heat energy. It is commonly referred to as the Brayton Cycle after George Brayton.
1 Ιαν 2013 · The functioning of turbogenerators is explained as the final link between the turbine and the grid. Basic physical laws are given, and principles to calculate the performance and application of generators to gas turbines are derived. It is shown how generators developed with the progress of gas turbines.
maintain stable generator operation when connected to other system grid generators. From significant field expe-rience, [2] indicates that a 3–5% droop setting is typical for gas turbine generators. However, when a droop setting is applied to an islanding generator, maintaining a system frequency of 58.2 Hz at 50% load or 57.6 Hz at 100%
Typical engine performance maps are shown in Figure 2 for single-shaft engines and in Figures 3, 4, and 5 for two-shaft engines. In general, these maps can be used to determine the engine full load output at a given ambient temperature, and a given power turbine speed.
A gas turbine essentially brings together air that it compresses in its compressor module, and fuel, that are then ignited. Resulting gases are expanded through a turbine. That turbine’s shaft continues to rotate and drive the compressor which is on the same shaft, and operation continues.
In jet engines, the responsibility of a gas generator is to produce a high-pressure, high-temperature stream of combustion products (predominantly air), which are allowed to expand down to (ideally) the local ambient pressure in an exhaust nozzle.