🔍 Key Concepts

• Gas turbine enclosure environmental control requirements • Difference between air inlet heating, fuel heating, and space/enclosure heating • Typical standby/secured conditions for a GE LM2500

💭 Think About

• Think about what part of the system the enclosure heater actually affects: the air going into the engine, the fuel, or the space around the turbine? • Ask yourself which option mentions a specific control value that would normally be tied to an automatic control system, not just a general comfort or process goal. • Consider what risk is being managed when the turbine is shut down for long periods: condensation, corrosion, cold starts, crew comfort, or fuel properties?

✅ Before You Answer

• Verify whether inlet air temperature for performance is normally controlled by inlet heating systems or by the enclosure heater. • Check if fuel viscosity control for a marine gas turbine is usually done in the fuel system (heaters/conditioners) or by heating the entire enclosure. • Look for the choice that sounds like a design specification for automatic temperature maintenance of the turbine space, rather than an indirect or secondary effect.