How is the vent damper opened and closed?

The vent damper is typically opened and closed using an electrically operated pneumatic actuator. This system combines electrical control with pneumatic movement, allowing for more precise and efficient operation. The electrical component provides the control signal that activates the pneumatic actuator, which then moves the vent damper to the desired position. This setup is advantageous because it allows for remote operation and integration with automated systems, which enhances the overall efficiency and reliability of the gas turbine system.

In contrast, the other methods do not offer the same level of automation or control. A manually operated lever relies on physical action to adjust the damper, which can be less efficient and more prone to operator error. Pneumatic actuators alone, while effective, typically require a separate electrical control system to operate high demand environments effectively. Hydraulic systems, while powerful, are generally not used for vent dampers due to complexity and maintenance concerns compared to pneumatic solutions.