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Gas Turbine Handbook : Principles and Practices

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

Figure 13-15. Boroscope view of first stage turbine nozzles. 5,000<br />

horsepower gas turbine-generator unit with less than 1,000 hours<br />

operation.<br />

Figure 13-16. Boroscope view of first stage turbine nozzle root with<br />

water streak marks. 1,000 horsepower gas turbine-cogeneration unit<br />

shortly after installation.

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