InformationMomentum Balance Ap: Projected area of the particle (AD²/4).CD: Drag coefficientopproach velocity uoFb: Buoyancy forceFD: Drag forceFg: Gravitational Forcem: Mass of the particle.Projected orea ApFluid streomlinesVp: Volume of the particle (V, = (m/Pp)v:: Terminal velocity of the falling particle,z: Direction along the lengthp: Density of the fluid.Pp: Density of the solid particle. 4.4 Determine the velocity of the solid particles of diameter 0.0003 m in a pneumaticconveyor at length of 10 m. The initial velocity of the particle is zero andsuperficial velocity of air is 10 m/s. The density of the particle is 900 kg/m³. Airis fed at 25°C and 1 atm and the viscosity of air under these conditions is 1.8 × 103 kg/m-s. Neglect the wall effects. Use the following relation to determine Cp:24(1+0.15RE")C, =Re,0.687

CD = 24Rep 1+0.15 Rep0.687----- (1)WhereRep = ρg vg - vp dpμ ----- (2)vp = 0vg = 10 m/secρg = 900…

Answered: s of di amo er velocity of ensity of…

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s of di amo er velocity of ensity of the air under these « owing relation DW

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.18P: The drag on an airplane wing in flight is known to be a function of the density of air (), the...

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Concept explainers

Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.

Question

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Information Momentum Balance

Ap: Projected area of the particle (AD²/4).
CD: Drag coefficient
opproach velocity uo
Fb: Buoyancy force
FD: Drag force
Fg: Gravitational Force
m: Mass of the particle.
Projected orea Ap
Fluid streomlines
Vp: Volume of the particle (V, = (m/Pp)
v:: Terminal velocity of the falling particle,
z: Direction along the length
p: Density of the fluid.
Pp: Density of the solid particle.

4.4 Determine the velocity of the solid particles of diameter 0.0003 m in a pneumatic
conveyor at length of 10 m. The initial velocity of the particle is zero and
superficial velocity of air is 10 m/s. The density of the particle is 900 kg/m³. Air
is fed at 25°C and 1 atm and the viscosity of air under these conditions is 1.8 × 103 kg/
m-s. Neglect the wall effects. Use the following relation to determine Cp:
24
(1+0.15RE")
C, =
Re,
0.687

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