Question

Determine the velocity of fluid in m/s at the throat (at the smaller diameter of the pipe), and the mass flow rate of the fluid at the inlet, if the flow is coming from left to right in a system as shown below. Specific gravity of the flowing fluid is 1.2, and density of water is 1,000 kg/m^3.

Find: A) velocity of fluid (m/s) at the throat, & B) mass flow rate of the fluid at the inlet.

P1 = 735 kPa P2 = 550 kPa Flow Direction 31 mm 19 mm

Answer 1

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h = 550kla 31 mm = 1.2 x 1000 AzV₂ P = 735kPa flowing fluid density 77 figmm S = SXS dlatum = 1200 kg/m3 @ using continuity equation A, V, => 1 (0.0312°, -10.019)*V, = 0.37565 V2 0 & Using bernoulling equation P P2 +/2, gg eg V₂ - V, 2 PP₂ (Z-2,) zg eg 12²-60.3756542) (735-550) X1000 1200 x 981 t + 2g +7 2 - ) 2 2 x 9.81 => V = 18.947 m/s velocity of thrid at throat Any ni mas flow rate = Q = AX, T Velocity of ferid at inlet vi = 0.31565% = 7.11 75 m/s (0.031)2 x 7.1175 5.372 X163 m3/s РА, y, of fluid at the inlet 6.446 kg/s mass flow rate = 1200 X 5.372 x 10-3