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Gas Turbine Handbook : Principles and Practices

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24 <strong>Gas</strong> <strong>Turbine</strong> <strong>H<strong>and</strong>book</strong>: <strong>Principles</strong> <strong>and</strong> <strong>Practices</strong><br />

Table 3.1. Industrial <strong>Gas</strong> <strong>Turbine</strong>s Compared To Aero-Derivative <strong>Gas</strong><br />

<strong>Turbine</strong>s<br />

————————————————————————————————<br />

Industrial Compared To<br />

Observation<br />

Aero-Derivative<br />

————————————————————————————————<br />

Shaft speed<br />

slower<br />

————————————————————————————————<br />

Air flow<br />

higher<br />

————————————————————————————————<br />

Maintenance time<br />

longer<br />

————————————————————————————————<br />

Maintenance lay-down space<br />

larger<br />

————————————————————————————————<br />

Figure 3-1. Courtesy of General Electric Company. The General<br />

Electric Model Series (MS)5000 heavy frame industrial gas turbine<br />

is currently in service throughout the world. Although General Electric<br />

is no longer producing this machine, it is available through its<br />

partners <strong>and</strong> licensees. This machine is ISO base load rated at 26<br />

megawatts.<br />

industrial) <strong>and</strong> the aero-derivatives use anti-friction bearings.<br />

The technology that resulted in putting a man on the moon had<br />

its beginnings in the aero-engine industry. That technology developed<br />

super alloys, achieved light weight without sacrificing strength, <strong>and</strong><br />

computer designed components for maximum performance. The technology<br />

has been used to provide a maintainable, flexible, industrial<br />

aero-derivative gas turbine. The key to this maintainability is the<br />

modular concept (Figure 3-4), which provides for the removal of a

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