Relacionar Columnas Air Distribution Systems - section 1Versión en línea Trade terms - Air Distribution Systems - section 1 por Valerie Jimenez 1 Blower door 2 Cubic feet per minute (cfm) 3 Wet-bulb temperature 4 Velocity pressure 5 Revolutions per minute (rpm) 6 Pilot tube 7 Relative humidity (RH) 8 External static pressure (ESP) 9 Total pressure 10 Static pressure 11 Dry-bulb temperature 12 Psychometric chart 13 Dew point 14 Velocity A tool used to take pressure measurements in a moving air stream. A graphic method of showing the relationship of various air properties. The sum of the static pressure and the velocity pressure in an air duct. The temperature measured using a standard thermometer. It represents the measure of sensible heat present. The speed that the air is moving. The rate of airflow is usually measured in feet per minute (fpm) The temperature at which air becomes saturated with water vapor, and the water starts t condense into droplets; at state of 100% relative humidity The pressure in a duct due to the linear movement of the air. It is the difference the total pressure and the static pressure. The total resistance of all objects and ductwork in the air distribution system beyond the blower assembly. The number of rotations made by a spinning object over the course of one minute. Temperature taken that takes into account he moisture content of the air, it reflects the total heat content (sensible & latent) of the air. A unit of measure for the volume of air flowing pas a point in one minute. The pressure exerted uniformly in all directions within a duct system, usually measured in inches of water column (in. w.c) The ratio of the amount of moisture present in a given sample of air to the amount it can hold at saturation. Expressed in percent. An assembly containing a fan used to depressurize a building by drawing air out, to support duct leak testing.