A suspension made of aspirin particles and ethanol is flowing in a pipe of 50 mm diameter. Ethanol and aspirin properties are reported in the table below. Property Ethanol density (kg/m³) Ethanol dynamic viscosity (Pas) Particle density (g/cm³) Particle mean diameter (µm) Region Re single particle range CD Value 789 0.00109 Assume the single particle Reynolds number is equal to 0.1. The empirical parameters a and b are 0.7 and 0.2 respectively. Stokes < 0.3 24 Rep 1.4 20 Intermediate 0.3< Rep < 500 24 Rep (1 + 0.15 Rep 0.687) Newton's law 500 Rep < 2 x 105 ~0.44 (a) Calculate the critical velocity above which particles will remain suspended during the suspension flow in the pipe. Consider the suspension is flowing under Stokes flow regime. (b) How does the critical velocity of the suspension travelling in the pipe change if the solvent is ethylene glycol rather than ethanol? Ethylene glycol density is 1110 kg/m³ and dynamic viscosity is 0.0162 Pa.s. (c) How does the critical velocity of the suspension travelling in the pipe change if the mean diameter of the suspended particles is 300 μm? (d) How does the critical velocity of the suspension travelling in the pipe change if the diameter of the pipe is 10 cm?

A suspension made of aspirin particles and ethanol is flowing in a pipe of 50 mm diameter. Ethanol and aspirin properties are reported in the table below. Property Ethanol density (kg/m³) Ethanol dynamic viscosity (Pas) Particle density (g/cm³) Particle mean diameter (µm) Region Re single particle range CD Value 789 0.00109 Assume the single particle Reynolds number is equal to 0.1. The empirical parameters a and b are 0.7 and 0.2 respectively. Stokes < 0.3 24 Rep 1.4 20 Intermediate 0.3< Rep < 500 24 Rep (1 + 0.15 Rep 0.687) Newton's law 500 Rep < 2 x 105 ~0.44 (a) Calculate the critical velocity above which particles will remain suspended during the suspension flow in the pipe. Consider the suspension is flowing under Stokes flow regime. (b) How does the critical velocity of the suspension travelling in the pipe change if the solvent is ethylene glycol rather than ethanol? Ethylene glycol density is 1110 kg/m³ and dynamic viscosity is 0.0162 Pa.s. (c) How does the critical velocity of the suspension travelling in the pipe change if the mean diameter of the suspended particles is 300 μm? (d) How does the critical velocity of the suspension travelling in the pipe change if the diameter of the pipe is 10 cm?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

last 2 digits = 77.
Please be consistent with the units. Don't convert SI to English or vice versa.
Q2. Please solve this one without integration.
Ans. To check: 4.66 rad/s
Solve it correctly please. I will rate accordingly with 4votes.
B5
A three stage pump delivers 1.89 m3/s against a head of 200 m with a speed of 2000 rpm. Find the specific speed (US) Round your answer to 2 decimal places. Add your answer
None
Please be consistent with the units. Don't convert SI to English or vice versa.
Since the snowmobile left the obstacle A at an angle of 40 degrees, its speed was 10 m/s and fell to the ground at point B:a) flight time, tb) horizontal distance traveled, Rc) Calculate the velocity components at Point B and the magnitude of velocity, V=Vxi + Vyj and V.
Sketch a typical turbine speed (rpm) VS wind speed characteristics (which indicates how turbine speed is controlled as wind speed changes to achieve the given power curve). Rated speed of the turbine is 18 rpm. Mark all the main points on the curve and the associated values. ..