Pressure drop definition

Pressure drop means the drop in static pressure versus air flow rate across air filter media in the forced-air heating or cooling equipmentsystem.
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Pressure drop means static pressure loss in fluid pressure, as in one end of a conduit to the other due to friction. “Psig” means pounds per square inch gauge.
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Examples of Pressure drop in a sentence

  • Pressure drop across the wet scrubber system every 15 minutes of operation or amperage to the wet scrubber every 15 minutes of operation, as applicable.

  • Safety of pipe work routing; and iii) Total capacity rating of standard main; and iv) Pressure drop limitation; and v) Waste systems generally limited to use on double units only.

  • Pressure drop across damper at Project design and minimum airflow conditions.

  • Two-way modulating service: Pressure drop shall be equal to twice the pressure drop through heat exchanger (load), 50% of the pressure difference between supply and return mains, or 5 psi, whichever is greater.

  • Three-way modulating service: Pressure drop equal to twice the pressure drop through the coil exchanger (load), 35 kPa (5 psi) maximum.

  • Pressure drop on the control device and temperatures must be recorded during the compliance source test and reported as part of the test results (ARM 17.8.749).

  • For B7 it is more Table 6 Values for use with eqn (3) to estimate pulsed packet velocity on exiting nozzle bore r 791 Density of methanol kg m—3×DP 2.0 105 Pressure drop from nozzlehead to chamber, Pad 0.51 Nozzle diameter, mmL 1.25 Nozzle orice length, mmf 0.035 Friction factor, drawn steel, 0.0015 mm roughness,Reynolds number > 104g 9.8 Acceleration due to gravity, m s—2 like a factor of 5.

  • Monitoring frequency and data Collection procedure: Pressure drop readings shall be conducted daily during a period when the baghouse is in operation.

  • Standard air leakage data to be certified under the AMCA certified ratings program..9 Pressure drop of a fully open 48" x 48" (1220mm x 1220mm) damper shall not exceed .03"(.007kPa) w.g. at 1000fpm(5.08 m/s)..10 Dampers shall be made to size required without blanking off free area..11 Installation of dampers shall be in accordance with manufacturer's installation guidelines.

  • Pressure drop across the baghouse must be recorded during the compliance source test and reported as part of the test results (ARM 17.8.749).

Related to Pressure drop

  • Pressure means the total load or force per unit area acting on a surface.

  • Reid vapor pressure means the vapor pressure of crude oil or other volatile petroleum products at 100 degrees Fahrenheit as determined by the latest edition of ASTM D6377 (RVPE): Standard Test Method for Determination of Vapor Pressure of Crude Oil.

  • True vapor pressure means the equilibrium partial pressure exerted by a petroleum liquid as determined in accordance with methods described in American Petroleum Institute (API) Bulletin 2517, Evaporation Loss from External Floating Roof Tanks, 1980. The API procedure may not be applicable to some high viscosity or high pour crudes. Available estimates of true vapor pressure may be used in special cases such as these.

  • Operating pressure means the pressure at which the parts of an irrigation system are designed by the manufacturer to operate.

  • Pressure vessel means containers for the containment of pressure, either internal or external. This pressure may be obtained from an external source or by the application of heat from a direct or indirect source, or any combination thereof.

  • Design pressure means the hydrostatic pressure for which each structure or appliance assumed watertight in the intact and damage stability calculations is designed to withstand.

  • Backpressure means a pressure (caused by a pump, elevated tank or piping, boiler, or other means) on the consumer's side of the service connection that is greater than the pressure provided by the public water system and which may cause backflow.

  • Water Surface Elevation (WSE means the height, in relation to mean sea level, of floods of various magnitudes and frequencies in the floodplains of coastal or riverine areas.

  • Low water pressure means water pressure below the regulatory reference level which is the minimum pressure when demand on the system is not abnormal.

  • Working pressure means the settled pressure of a compressed gas at a reference temperature of 15 °C in a full pressure receptacle;

  • Single Phase Aerosol Air Freshener means an aerosol air freshener with the liquid contents in a single homogeneous phase and which does not require that the product container be shaken before use.

  • Engine degreaser means a cleaning product designed to remove grease, grime, oil and other contaminants from the external surfaces of engines and other mechanical parts.

  • Tare Weight means the weight of an empty shipping container, excluding all materials used for wrapping, cushioning, banding, waterproofing, packaging, blocking and bracing articles within the exterior container.

  • Ultra Low Sulfur Diesel Fuel means diesel fuel that has a sulfur content of no more than fifteen parts per

  • Water surface elevation means the height, in relation to the National Geodetic Vertical Datum (NGVD) of 1929, the North American Vertical Datum (NAVD) of 1988, or other datum, where specified, of floods of various magnitudes and frequencies in the floodplains of riverine areas.

  • Biomass means the biodegradable fraction of products, waste and residues from biological origin from agriculture (including vegetal and animal substances), forestry and related industries including fisheries and aquaculture, as well as the biodegradable fraction of industrial and municipal waste;

  • water meter means any apparatus for measuring or showing the volume of water supplied to, or of effluent discharged from any premises;

  • Opium poppy means the plant of the species Papaver somniferum L., except its seeds.

  • Diameter at breast height (dbh) means the diameter of a tree at 4 1/2 feet above the ground measured from the uphill side.

  • Pump spray means a packaging system in which the product ingredients within the container are not under pressure and in which the product is expelled only while a pumping action is applied to a button, trigger or other actuator.

  • Sensor means any measurement device that is not part of the vehicle itself but installed to determine parameters other than the concentration of gaseous and particle pollutants and the exhaust mass flow.

  • Electrical cleaner means a product labeled to remove heavy soils such as grease, grime, or oil from electrical equipment, including, but not limited to, electric motors, armatures, relays, electric panels, or generators. Electrical Cleaner does not include “General Purpose Cleaner,” “General Purpose Degreaser,” “Dusting Aid,” “Electronic Cleaner,” “Energized Electrical Cleaner,” “Pressurized Gas Duster,” “Engine Degreaser,” “Anti-Static Product,” or products designed to clean the casings or housings of electrical equipment.

  • Suction outlet means the opening or fitting through which the water under negative pressure is drawn from the pool or spa.

  • Diameter means the diameter of the stem of a tree measured outside the bark at a specified point of measurement.

  • Electrical Distance means, for a Generation Capacity Resource geographically located outside the metered boundaries of the PJM Region, the measure of distance, based on impedance and in accordance with the PJM Manuals, from the Generation Capacity Resource to the PJM Region.

  • Sewage sludge weight means the weight of sewage sludge, in dry U.S. tons, including admixtures such as liming materials or bulking agents. Monitoring frequencies for sewage sludge parameters are based on the reported sludge weight generated in a calendar year (use the most recent calendar year data when the NPDES permit is up for renewal).