What is one of the main purposes of auxiliary systems in gas turbines?

Auxiliary systems in gas turbines play multiple critical roles that support the primary operation and efficiency of the turbine. Among their functions, providing fuel at the correct temperature is essential because fuel that is too cold can lead to increased viscosity, affecting atomization and combustion efficiency.

Injecting steam for cleaning is another important function; steam can be used effectively to clean turbine blades and other components, thus maintaining performance and prolonging service life.

Additionally, providing hydraulic fluid for lubrication is vital for maintaining proper operation throughout the turbine's mechanical systems. This lubrication minimizes friction between moving parts, ensuring smoother operation, reducing wear, and enhancing overall reliability.

Collectively, these functions underscore the importance of auxiliary systems in ensuring that gas turbines operate efficiently and reliably. Since each option highlights a significant role played by auxiliary systems, the correct answer encompasses the broad range of support these systems provide. This holistic view is essential for understanding the complexities and interdependencies within gas turbine operations.