![]() Handbook of Instruments Automation and SensorsĢ013 ASHRAE Handbook - Fundamentals, ASHRAE: 2021. ![]() Orifice Plate Flow Calculations and Design.Application of Bernoulli's Equation to a Venturi - Fluid Flow Hydraulic and Pneumatic.Nozzle Venturi and Orifice Flow meter Formula and Calculator.Gas Flow Rate Through Orifice Equations and Calculator per.Pitot tube stagnation pressure equation for an incompressible fluid Pitot Tube Velocity of Fluid Flow Measurement.Pitot Tube Type Flow Detector Basics Review.Source: Reprinted with permission from 2013 ASHRAE Handbook - Fundamentals, ASHRAE: 2013. U pw = velocity pressure bias or variation Uncertainty of the pitot tube may be 1 - 3% and is dependant on a variety of factors. Precision manometer or comparable pressure differential transducer Tube is used to measure air velocities lower than 1500 fpm, a However, it is also suitable for velocity. Over 1500 fpm, aĭraft gage of appropriate range is usually satisfactory. You can use a Prandtl probe as flow velocity metering instrument mainly for open flow around solid bodies. With a pitot-static tube depends on the magnitude of velocity pressureīeing measured and on the desired accuracy. The type of manometer or differential pressure transducer used G c = gravitation constant (32.174 lbm-ft / lbm-sec 2) P w = velocity pressure (pitot-tube manometer reading) (inches of water) The pitot-static tube, in conjunction with a suitable manometer or differential pressure transducer, provides a simple method of determining air velocity at a point in a flow field. Pitot-Static Tube Velocity of Fluid Flow Measurement Calculator and Equation Related Resources: calculators Pitot-Static Tube Air Velocity Calculator and Equation
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