The terminal or end device in an air distribution system that directs air in a specific direction using louvers
means a flat sheet of white plastic which emits even light over the surface when lighted by a CFL tube on one or two edges
A stationary passage surrounding an impeller, in which velocity pressure imparted to the flow medium by the impeller is converted into static pressure (020)
A hosing or vaned part that fits around the impeller The diffuser strips water from the rotating impeller and forces it out the discharge line of the pump, reducing the velocity of water through the pump while increasing the static pressure In some pump models the diffuser and the volute are designed as a single part
optical device that distributes the light of a lamp evenly baffle that distributes sound waves evenly
A structure composed of perforated pipes, placed at the end of an outfall pipe, which is designed to spread the effluent widely so as to facilitate dilution
A stationary passage surrounding an impeller, in which velocity pressure imparted to the flowing' medium by the impeller is converted into static pressure
a porous tube or other device that air is forced through and divided into very small bubbles for interaction with organic pollutants found in liquids
Refers to placing a translucent material between the light source and the subject gives more even illumination to the subject and softens the shadows
Device used to alter the spatial distribution of radiation and depending essentially on the phenomenon of diffusion