Why is the air intake duct mounted above the gas turbine enclosure?

Mounting the air intake duct above the gas turbine enclosure serves primarily to place it in cleaner air. By elevating the intake area, the duct is less likely to draw in contaminants that might be present at ground level, such as dust, debris, or exhaust from surrounding equipment. This cleaner intake air is crucial for the efficient operation of the gas turbine, as it helps maintain optimal performance and reduces wear on the turbine components.

By ensuring that the air entering the turbine is of higher quality, the system can operate more efficiently, leading to increased power output, lower emissions, and reduced maintenance requirements. This design consideration directly supports the overall reliability and longevity of the gas turbine system, making it an essential aspect of turbine installation and operation.