Q2. Density and viscosity of a natural emulsion composed of 85% (by volume) water and 15%...
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Q2. Density and viscosity of a natural emulsion composed of 85% (by volume) water and 15% (by volume) of oil is 990 kg/m3 at 25°C and its viscosity is 1.8 cP. At this temperature density and viscosity of water are 1000 kg/m3 and 1 cP, respectively. Diameter of spherical oil droplets is 50 um. a) Calculate density of oil droplets and then terminal velocity of oil droplets by deciding the flow regime. [12 pts] b) What can you say about the flow direction of the oil droplets? Show the flow direction and forces effective on the oil droplet by drawing an oil.[8 pts] c) At which time the emulsion is completely deformed (or separated into oil and water phases) if 200 liter emulsion exists in a cylindrical tank of which diameter is equal to the height of the emulsion? [5 pts] (Hint: Consider oil droplets as solid particles) Q2. Density and viscosity of a natural emulsion composed of 85% (by volume) water and 15% (by volume) of oil is 990 kg/m3 at 25°C and its viscosity is 1.8 cP. At this temperature density and viscosity of water are 1000 kg/m3 and 1 cP, respectively. Diameter of spherical oil droplets is 50 um. a) Calculate density of oil droplets and then terminal velocity of oil droplets by deciding the flow regime. [12 pts] b) What can you say about the flow direction of the oil droplets? Show the flow direction and forces effective on the oil droplet by drawing an oil.[8 pts] c) At which time the emulsion is completely deformed (or separated into oil and water phases) if 200 liter emulsion exists in a cylindrical tank of which diameter is equal to the height of the emulsion? [5 pts] (Hint: Consider oil droplets as solid particles)
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Related Book For
Fundamentals of Thermal-Fluid Sciences
ISBN: 978-0078027680
5th edition
Authors: Yunus A. Cengel, Robert H. Turner, John M. Cimbala
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