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Turbomachinery Package Specification Titan 250 Generator Set
3 Titan 250 Gas Turbine
3.1 General Description
The two-shaft Titan 250 gas turbine (Figure 3) is a completely integrated and self-
contained prime mover. The Titan 250 gas turbine combines high performance operation
with rugged industrial construction. This design philosophy allows for high efficiency, low
maintenance, and a long service life. The Titan 250 gas turbine is designed for a high
degree of compliance with American Petroleum Institute (API) requirements.
Figure 3. Titan 250 Two-Shaft Gas Turbine Cutaway
3.1.1 Principles of Operation
During the typical combustion process (Figure 4), air is drawn into the gas turbine air inlet
and is compressed by the multi-stage, axial-flow engine compressor. The compressed air
is directed into the annular combustion chamber at a steady flow. Fuel is injected and
mixed with the compressed air and ignited during the start cycle. Continuous combustion
will be maintained as long as there is an adequate flow of pressurized air and fuel. Hot-
pressurized gas from the combustor expands through and drives the turbine, dropping in
pressure and temperature as it exits the turbine. This combustion cycle converts the
energy in the fuel into kinetic rotating power at the turbine output shaft.
© 2008 Solar Turbines Incorporated. All rights reserved. TPS250GS/908 - Preliminary
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