A decision to replace more than 300 aging damper actuators forced Entergy to make a choice between pneumatic and electric actuator designs. At Entergy’s Independence Plant in Newark, Ark., two ...

Pneumatic furnace damper drives may be more common, but electro-hydraulic actuators provide several advantages to the more traditional control scheme. One fossil-fired plant in Taiwan achieved more ...

The damper actuator, which controls zone dampers, and the air brake is quiet and has a long-life spring return. The air brake has a patent-pending Whisper Motion that offers a quiet operation. The air ...

THE ELECTRIC UTILITY industry’s transition into the age of deregulation is driving the need to improve the thermal performance of fossil-fueled plants. In order to stay competitive utilities must ...

The goal of pneumatics-system design is often to run actuators as fast as possible without introducing excessive shock loads to the system. At low speeds, a cylinder piston can usually hit the end cap ...

Ventilation to a space is often specified by an engineer based on the purpose of the space. All too often the outside air requirements are established as an unmeasured cfm value; this ultimately ends ...