Question

Nominal diameter of the pipe : 0.25 inch Select Venturi diameter : 0.3 ст Select type of Venturi Tube : Welded Tube Process Fluid : Water Manometric Fluid : Carbon tetrachloride

Answer 1

diameter of pipe, d=0.635 cm diameter of venturi throat, dt=0.3 cm density of cck=1.59 g/cc density of process fluid= 1g/cc visocity of process fluid, water= 1 centipoise XHm= height difference in cm of manometric fluid XHw= height difference in cm of process fluid Q = Volumetric flow rate Vi= average velocity through throat =Q/A At=3.14/4* d1^2=0.07065 cm^2 B-du/d=0.47 N(reylond)=reynolds number at the throat=pdıV/ coefficient of discharge= Cd Q V1- B4 ca 4, 2gAH,

observation table ! Flow rate (pm) h1 (cm) 1.58 35.8 2.67 37.2 3.75 39.3 5.5 44.1 h2 (cm) XHm (cm) XHw (cm) 34.2 1.6 0.944 32.8 2.596 30.7 8.6 5.074 25.9 18.2 10.738 4.4

observation table II Q{m^3/sec) XHm (cm) Velocity (m/s) XHw (cm) N(reylond) Cd 2.64x10-3 1.6 3.7 0.944 12469 0.837796 4.46x10 4.4 6.3 2.596 21231 0.860223 6.26x10-51 8.6 8.8 5.074 29656 0.859469 9.2x10-5 18.2 13 10.738 43810 0.872779

Ignore the delta notation as it was some problem with the software used. as stated both table has been recreated with the calculation of each data required. if there is still any doubt, let me know in the comment section.