Delta T A term indicating a temperature relationship between two temperatures or temperature variation between two points. Demand Flow of air under specific conditions required at a particular point. The planning and implementation of strategies designed to encourage consumers to improve energy efficiency, reduce energy costs, change the time of usage, or promote the use of different energy source. Demulsibility The ability of a fluid that is insoluble in water to separate from water with which it may be mixed in the form of an emulsion. Desiccant An adsorption type material used in compressed air dryers.
Industry standards are activated alumina, silica gel and molecular sieves.
The maximum continuous operating pressure as designed by the manufacturer. Desorption Opposite of absorption or adsorption. In filtration, it relates to the downstream release of particles previously retained by the filter. Dew point of a gas mixture is the temperature at which the highest boiling point constituent will start to condense. An apparatus consisting of a small, polished, stainless steel cup placed in a container into which is passed the sample gas.