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 ...

THIS column provides information about the use of outdoor air dampers in hot and humid climates and during hot and humid seasons in temperate climates in commercial buildings. Terms used in this ...

Zoning in forced-air systems is accomplished by controlling dampers that are located within the ductwork system. Dampers open, close, or modulate depending on the demand from the controller. Air is ...

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 ...

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 ...

In farming, speed, efficiency and consistency are key to growth and success. This is especially true during the planting process as it pertains to seed depth which, today, is largely handled by ...

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 ...