HM 210 Characteristic Variables Of A Radial Fan Didactic Equipment Vocational Education Equipment Fluid Mechanics Lab Equipment
Determination of flow rate via iris diaphragm or Venturi nozzle Features - investigation of a radial fan and determination of characteristic variables - determination of flow rate via iris diaphragm or Venturi nozzle - different liquid column manometers measure the differential pressure with varying accuracy Learning objectives/experiments - setup and principle of a radial fan - plotting fan and system characteristics - flow rate measurement methods based on the differential pressure method using: -- iris diaphragm -- Venturi nozzle -- comparison of both measurement methods - familiarisation with various differential pressure gauges - determining efficiency Specification [1] radial fan as turbomachine [2] iris diaphragm or Venturi nozzle to determine flow rate via the differential pressure [3] speed adjustment by frequency converter [4] U-tube manometer, single tube manometer and inclined tube manometer measure the differential pressure [5] air flow rate in pipe section adjustable by throttle valve or iris diaphragm [6] speed, torque and electric power capacity digitally displayed Technical data Radial fan - max. power consumption: 370W - max. pressure difference: 860Pa - max. volumetric flow rate: 4m3/min - nominal speed: 3000min-1 - speed range: 1000...3000min-1 Iris diaphragm adjustable in 6 stages - diameter: 40...70mm - k=1,8....7,8 Venturi nozzle - air inlet diameter: 100mm - pipe neck diameter: 80mm - k=7,32 Measuring ranges - differential pressure: -- 30...0...30mbar (U-tube manometer) -- 0...15mbar (single tube manometer) -- 0...50Pa (inclined tube manometer) 230V, 50Hz, 1 phase 230V, 60Hz, 1 phase; 230V, 60Hz, 3 phases UL/CSA optional LxWxH: 1300x720x1640mm Weight: approx. 123kg
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