Q31 Eddy diffusion calculation A stream of air at 100 kPa and 300 K is flowing on the top surface of a thin flat sheet of solid naphthalene of length 0.2 m with a velocity of 20 m/sec. The other data are: Mass diffusivity of naphthalene vapor in air = 6*106 m²/sec Kinematic viscosity of air = 1.5 * 10.5 m²/sec Concentration of naphthalene at the air-solid naphthalene interface = 1*105 kmol/m³ Sh= 0.664Re/Sc¹/3 where Re, p " Calculate: (a) The everage mass transfer coefficient over the flat plate (b) The rate of loss of naphthalene from the surface per unit width
Q31 Eddy diffusion calculation A stream of air at 100 kPa and 300 K is flowing on the top surface of a thin flat sheet of solid naphthalene of length 0.2 m with a velocity of 20 m/sec. The other data are: Mass diffusivity of naphthalene vapor in air = 6*106 m²/sec Kinematic viscosity of air = 1.5 * 10.5 m²/sec Concentration of naphthalene at the air-solid naphthalene interface = 1*105 kmol/m³ Sh= 0.664Re/Sc¹/3 where Re, p " Calculate: (a) The everage mass transfer coefficient over the flat plate (b) The rate of loss of naphthalene from the surface per unit width
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
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![Q3]
Eddy diffusion calculation
A stream of air at 100 kPa and 300 K is flowing on the top surface of a thin flat sheet of solid naphthalene of
length 0.2 m with a velocity of 20 m/sec. The other data are:
Mass diffusivity of naphthalene vapor in air = 6*106 m²/sec
Kinematic viscosity of air= 1.5 * 10-³ m²/sec
Concentration of naphthalene at the air-solid naphthalene interface = 1*105 kmol/m³
Sh = 0.664 Re/Sc¹/3 where Re₁ = lvp
μ
Calculate:
(a) The overage mass transfer coefficient over the flat plate
(b) The rate of loss of naphthalene from the surface per unit width](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F73c24e19-b790-43ee-b533-3c02f0acab4b%2Fa5af8d4c-629c-4876-820b-32e4b131aab5%2Fkcjc1uk_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Q3]
Eddy diffusion calculation
A stream of air at 100 kPa and 300 K is flowing on the top surface of a thin flat sheet of solid naphthalene of
length 0.2 m with a velocity of 20 m/sec. The other data are:
Mass diffusivity of naphthalene vapor in air = 6*106 m²/sec
Kinematic viscosity of air= 1.5 * 10-³ m²/sec
Concentration of naphthalene at the air-solid naphthalene interface = 1*105 kmol/m³
Sh = 0.664 Re/Sc¹/3 where Re₁ = lvp
μ
Calculate:
(a) The overage mass transfer coefficient over the flat plate
(b) The rate of loss of naphthalene from the surface per unit width
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