BACKGROUND

The subject matter disclosed herein relates to systems for ventilating a gas turbine enclosure.

Gas turbine generators are often used to produce electricity for a power grid. The gas turbine generators are typically stationary units disposed in a power plant, such as an integrated gasification combined cycle (IGCC) power plant. However, the gas turbine generators also may be used in mobile units, such as large trailers. The gas turbine generators typically include a gas turbine engine enclosed within an enclosure (e.g., gas turbine enclosure). In order to avoid a buildup of heat around the gas turbine engine, the gas turbine generators include ventilation systems to carry heat away from the gas turbine engine. Unfortunately, the designs of the ventilation systems may limit the use of the gas turbine generators to environments within certain ambient temperature ranges and increase the operating costs of the gas turbine generators. In addition, the ventilation systems may not properly cool equipment within the gas turbine enclosure under all conditions (e.g., air densities, temperatures, etc.). Further, the ventilation systems may draw a considerable amount of power, and thus reduce the efficiency of the gas turbine generators.

BRIEF DESCRIPTION

Certain embodiments commensurate in scope with the originally claimed subject matter are summarized below. These embodiments are not intended to limit the scope of the claimed subject matter, but rather these embodiments are intended only to provide a brief summary of possible forms of the subject matter. Indeed, the subject matter may encompass a variety of forms that may be similar to or different from the embodiments set forth below.

In accordance with a first embodiment, a system includes a gas turbine enclosure and a gas turbine engine disposed in the gas turbine enclosure. The gas turbine engine outputs an exhaust flow. The system also includes a ventilation system that is coupled to the gas turbine enclosure. The ventilation system includes a vane disposed across an intake port between the gas turbine enclosure and the ventilation system, an actuator coupled to the vane, and a controller coupled to the actuator. The controller can cause the actuator to change a position of the vane to alter an air flow from the ventilation system into the gas turbine enclosure.

In accordance with a second embodiment, a system includes a turbine ventilation system that is coupled to a gas turbine enclosure. The turbine ventilation system includes a vane disposed across an intake port between the gas turbine enclosure and the turbine ventilation system, an actuator that is coupled to the vane, and one or more sensors that are disposed within the gas turbine enclosure. The turbine ventilation system also includes a controller that is coupled to the actuator. The controller can cause the actuator to change a position of the vane to alter an air flow from the turbine ventilation system into the gas turbine enclosure based on feedback received from the one or more sensors.

In accordance with a third embodiment, a system includes a gas turbine controller having a memory that stores instructions and a processor, which is coupled to the memory and executes the instructions. Upon the execution of the instructions, the processor receives feedback from one or more sensors disposed within a gas turbine enclosure that has a gas turbine engine disposed in the gas turbine enclosure. The processor, executing the instructions, also causes an actuator that is coupled to a vane disposed across an intake port between the gas turbine enclosure and a ventilation system to change a position of the vane to alter an air flow from the ventilation system into the gas turbine enclosure.

