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A powder forms a bed in a small tube. The bed is 0.8 cm in diameter and 3 cm long. The density of the powder is 2.5 g/cm³ and 2.2 grams of powder was used to form the bed. Air (density 1.2 kg/m³ and viscosity of 1.8x10-5Pa s) is drawn through the bed at the rate of 6.6 cm³/min. Under these conditions the pressure drop across the bed is 60 mm Hg. Determine the a) porosity inside the bed of powder b) superficial gas velocity in m/s c) surface area per unit volume of powder in m¹ using the Kozeny-Carmen equation. d) Sauter mean diameter of the powder in um e) modified Reynolds number

A powder forms a bed in a small tube. The bed is 0.8 cm in diameter and 3 cm long. The density of the powder is 2.5 g/cm³ and 2.2 grams of powder was used to form the bed. Air (density 1.2 kg/m³ and viscosity of 1.8x10-5Pa s) is drawn through the bed at the rate of 6.6 cm³/min. Under these conditions the pressure drop across the bed is 60 mm Hg. Determine the a) porosity inside the bed of powder b) superficial gas velocity in m/s c) surface area per unit volume of powder in m¹ using the Kozeny-Carmen equation. d) Sauter mean diameter of the powder in um e) modified Reynolds number

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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A powder forms a bed in a small tube. The bed is 0.8 cm in diameter and 3 cm long. The density of the powder is 2.5 g/cm³ and 2.2 grams of powder was used to form the bed. Air (density 1.2 kg/m³ and viscosity of 1.8x10-5Pa s) is drawn through the bed at the rate of 6.6 cm³/min. Under these conditions the pressure drop across the bed is 60 mm Hg. Determine the a) porosity inside the bed of powder b) superficial gas velocity in m/s c) surface area per unit volume of powder in m¹ using the Kozeny-Carmen equation. d) Sauter mean diameter of the powder in um e) modified Reynolds number
Transcribed Image Text:A powder forms a bed in a small tube. The bed is 0.8 cm in diameter and 3 cm long. The density of the powder is 2.5 g/cm³ and 2.2 grams of powder was used to form the bed. Air (density 1.2 kg/m³ and viscosity of 1.8x10-5Pa s) is drawn through the bed at the rate of 6.6 cm³/min. Under these conditions the pressure drop across the bed is 60 mm Hg. Determine the a) porosity inside the bed of powder b) superficial gas velocity in m/s c) surface area per unit volume of powder in m¹ using the Kozeny-Carmen equation. d) Sauter mean diameter of the powder in um e) modified Reynolds number
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