Question

6) A 3 cm orifice plate is placed within a 4 cm pipe in which methanol at 20 °C (SG 0.7884 and dynamic viscosity (μ) 0.5857 cP) is flowing through. If the flow rate passing through the pipe is 3.1 liters per second, determine the pressure difference that must be measured around the orifice plate. The discharge coefficient of the orifice can be calculated by: Cd = 0.5959 + 0.0312(Re^0.75) / (82.5 - 0.18488(Re^0.75)) Where; β is the ratio of orifice diameter to pipe diameter and Re is the Reynolds number.

Name: 6 a 3 cm orifice plate is placed within a 4 cm pipe in which methanol at 20 sg 07884 and dynamic viscosity a 05857 cp is flowing through if the flow rate passing through the pipe is 31 litre 77728
Uploaded: 2022-06-21T17:15:30-08:00
Duration: 6 min 3 s
Channel: Madhur L
Description: 6 a 3 cm orifice plate is placed within a 4 cm pipe in which methanol at 20 sg 07884 and dynamic viscosity a 05857 cp is flowing through if the flow rate passing through the pipe is 31 litre 77728

          6) A 3 cm orifice plate is placed within a 4 cm pipe in which methanol at 20 °C (SG 0.7884 and dynamic viscosity (μ) 0.5857 cP) is flowing through. If the flow rate passing through the pipe is 3.1 liters per second, determine the pressure difference that must be measured around the orifice plate. The discharge coefficient of the orifice can be calculated by:
Cd = 0.5959 + 0.0312(Re^0.75) / (82.5 - 0.18488(Re^0.75))
Where; β is the ratio of orifice diameter to pipe diameter and Re is the Reynolds number.

Added by Natalie S.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Madhur L

06/21/2022

Step 1

4 kg/m^3 Flow rate (Q) = 3.1 L/s = 0.0031 m^3/s Pipe diameter (D) = 0.04 m Dynamic viscosity (μ) = 0.5857 cP = 0.5857 x 10^-3 kg/(m.s) Re = ρ * Q / (μ * A) A = π * (D/2)^2 = π * (0.04/2)^2 = 0.0012566 m^2 Re = 788.4 * 0.0031 / (0.5857 x 10^-3 * 0.0012566) Re = Show more…

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6) A 3 cm orifice plate is placed within a 4 cm pipe in which methanol at 20 °C (SG 0.7884 and dynamic viscosity (μ) 0.5857 cP) is flowing through. If the flow rate passing through the pipe is 3.1 liters per second, determine the pressure difference that must be measured around the orifice plate. The discharge coefficient of the orifice can be calculated by: Cd = 0.5959 + 0.0312(Re^0.75) / (82.5 - 0.18488(Re^0.75)) Where; β is the ratio of orifice diameter to pipe diameter and Re is the Reynolds number.