What is the purpose of the air/oil separator shown in the illustration of the gas turbine lube oil system? Illustration GT-0024

Correct Answer: Option A — Minimize oil consumption by separating oily vapors being vented to the atmosphere.

Air/oil separators, or breathers, are essential components in gas turbine lube systems. They remove oil droplets from the air being vented from the bearing sumps to the atmosphere. This process minimizes oil consumption and prevents environmental pollution, ensuring compliance with maritime emission and operational standards for machinery spaces.