Why are separate lube oil systems recommended for aero-derivative turbines?

Separate lube oil systems are recommended for aero-derivative turbines primarily to ensure optimal lubrication during operation. Aero-derivative turbines often operate at high speeds and temperatures, which places significant demands on their lubrication systems. A dedicated lube oil system allows for precise control over the oil delivery, ensuring that all components receive adequate lubrication under changing operating conditions. This optimal lubrication is crucial to reduce wear and tear on moving parts, thereby enhancing the turbine's performance and extending its operational lifespan.

Moreover, having a separate system prevents contamination that could occur if the lube oil mixed with other fluids, ensuring that the oil maintains its desired properties and viscosity, which is essential for effective lubrication. Proper lubrication also supports efficient heat dissipation and helps manage the temperatures within the turbine, contributing to overall reliability and performance.