ASME MFC-26 PDF

Description

This Standard applies to the steady flow of single-phase gases and gas mixtures and applies to flowmeters in which the flow remains subsonic through the measuring section.
Standard applies only steady flow single-phase gasses gas mixtures bellmouth inlet flowmeters remains subsonic throughout measuring section varies slowly time. also addresses procedures calibration device can made allow application consistent conclusions known limits uncertainty. used within given unit tested, additional uncertainty tolerated, range extrapolation reliable. outlines general geometry method use determine mass volumetric rate mixture flowing device. gives necessary information calculating associated flowmeter provides conditioning measurement whose located positioned large reservoir supply source. outside ambient, room plenum conditions depending application. referred airbell, nozzle zero beta ratio, borda tube, etc. typically consists convergent followed constant throat area. differential pressure type allows determination total static single specified axial location area bellmouth. key features:benefits:  fundamentals usage extensively aerospace test facilities turbine engines measurement.  flare design considerations provided. non-mandatory appendix provided development calculation derivation. instrumentationoptions instrumentation methods impact discussed. pressure, temperature measurements must use.calibration various developing nist traceable results calculated air velocity, flowrates overview boundary layer growth contributors considered. computational fluid dynamics (cfd) analysis is mentioned significant result. approach statement     (data quality) practical steps determination. intended engineers users gas-flow devices industries energy, automotive aerospace. click printer-friendly version description.