Fig. 11-18 Steam Flow vs. Power for Same Turbine Operating at Various Speeds. Source: Tuthill Corp., Murray Turbomachinery Div.

and hydraulic relays. In the control process, sensors measure operating parameters of the turbine. A governor compares signals from the sensors with selected set points and produces a signal to the valve actuators that position the valves directly or indirectly.

The most advanced control systems use microprocessor-

based digital logic and can provide an abundance of diagnostic information to the operator. Microprocessor-based systems also allow for the use of two governors, providing 100% emergency backup.

Guide to Alternative Fuels

Guide to Alternative Fuels

Your Alternative Fuel Solution for Saving Money, Reducing Oil Dependency, and Helping the Planet. Ethanol is an alternative to gasoline. The use of ethanol has been demonstrated to reduce greenhouse emissions slightly as compared to gasoline. Through this ebook, you are going to learn what you will need to know why choosing an alternative fuel may benefit you and your future.

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