Continuous Flow Centrifugation
Autor: Kristine Tjung • October 25, 2015 • Coursework • 514 Words (3 Pages) • 880 Views
Continuous Flow Centrifugation
[pic 1][pic 2]
Vs = Particle “Settling” Velocity
ω = Bowl Rotation Rate (radians/time)
R = Distance from Particle to Bowl Axis
ρp = Density of Particle
ρl = Density of Liquid
Dp = Particle Diameter
µ = Liquid Viscosity
Solids are removed (liquid clarified) if:
Residence Time in Disk Stack > Settling Time
Maximum Centrifuge Flow Rate for Clarification
[pic 3]
Q = Liquid Flow Rate to Achieve Clarification
Vt = Terminal Velocity of Particle Under Gravity
Σ = Area of Gravity Setting Tank Equivalent to Centrifuge
e = Efficiency Factor (~55% for disk stack centrifuge)
ρp = Density of Particle
ρl = Density of Liquid
Dp = Particle Diameter
µ = Liquid Viscosity
g = Gravitational Constant
ω = Bowl Rotation Rate (radians/time)
N = Number of Disks in Stack
θ = Disk Angle
rin = Inner Radius of Disks
rout = Outer Radius of Disks
[pic 4]
Velocity and Laminar Shear in Filter Module[pic 5]
[pic 6]
[pic 7]
Pin = Pressure at inlet to flat plate filter stack.
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