Question

PLease answer the below question with clear writing and step by step, will give thumps up.

2. Consider replacing an orifice meter whose coefficient of discharging which takes friction and viscosity into account is 0.61 by a Venturi meter whose coefficient of discharging is 0.98. If the throats for both meters have the same diameters, find the ratio of pressure drop for Venturi meter to orifice meter when the flow rate is equal. D. D/21 Convergent Entrance Cylindrical Inlet Throat Divergent Outlet D and 1/2 Pressure Taps NS Square-odged Orifice Plate Flange Pressure Taps Orifice meter Venturi meter

Answer 1

oreplacing a venturiometere orifire Orifice venturimeter cd= Coefficient S of discharge Cd=0,98 Cd=0.61 If flow rate ¢ throat diameters of orifice & venturi mefer are equal, then find the ratio of prerrure drops for reuturimeter to orifice meter

meter orifice ori Solution & * for for orifice meter = Q = (Cajorifice how (0) as ao ragh aº - q. . (Cd Dorifice=0.6) - → » Q1 = Area of pipe Ao = Aurea of orifice h= Pressure heade Presture drop) > R= 0.61 a, acum V23h (3) >> For rentusi meter > Flow P= (Cd) venturi a az ✓ agh Val-QA? s) a= area of pipe =) Q2 = Area of throat caureaat = (Cd)venteri = 0.98 ro oigo 9,92 Sagh throat) =) 1 Vaasa

» Given equal throat for that (Q) flow rated & area c diameter) of venturi meter are equal. O osifice = (B) venteri metoo = 0.98 Vagh venturimeter ? 0.61 ſag borifice = 0,90 2g hentersimeter 3 (016112 28 hosu'fice = 0.6112 hosifice = (0,987% hventerrimeter - Ich venturi meter (0.61² 1 (horifice (0.9012 we know that poreppure [ P = f g h] prepnure (Se density) Preapure drop) venturi meter (Purespune dorop) orifice