Elementary Principles of Chemical Processes, Binder Ready Version
Elementary Principles of Chemical Processes, Binder Ready Version
4th Edition
ISBN: 9781118431221
Author: Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher: WILEY
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Chapter 7, Problem 7.56P
Interpretation Introduction

(a)

Interpretation:

To calculate the velocity at point 2 by neglecting friction.

Concept introduction:

Following assumptions are made in the derivation of Bernoulli’s equation:

  • The liquid is ideal and incompressible.
  • The flow is at steady state and continuous.
  • The flow is along the streamline
  • The velocity is uniform over the section and is equal to the mean velocity.
  • The only force acting on the fluid are gravity forces and the pressure forces.
  • Now apply Bernoulli equation at point 1 and 2
    P1ρg+V212g+z1=P2ρg+V222g+z2+hf ………………(1)
    Where

    • P1 & P2 are pressure at section I and 2.
    • V1 & V2 are velocity at section 1 and 2.
    • z1 & z2 are the elevation from the horizontal at section 1 and 2.
    • hf is the frictional losses

    Interpretation Introduction

    (b)

    Interpretation:

    To determine the diameter at point 1 if the pipe diameter at point 2 is 6.00 cm.

    Concept introduction:

    Mass balance for study flow processes:

    The total amount of mass within the control volume does not change with time.

    So that, the total amount of mass entering a control volume equal to the total amount of mass leaving it.

    If the mass flow is m. kg/s and volumetric flow rate is v. m3/s
    Then from conservation of mass for steady flow process will be as follows
    min.=mout. (Kg/s)
    Where min. = (? ×A ×V) in mout.

    • = (? A× V)out
    • Conservation of mass at section 1 and section 2.

    ρ1A1V1=ρ2A2V2

    If density is constant then above equation reduce to
    A1V1=A2V2

    • A is the area at respective section of the flowing processes
    • V is the velocity at respective section
    • ? is the density of flowing fluid in control volume

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    Do question 9 please! Question 7 Is just there for reference!!
    7) You are tasked with separating two proteins by ion exchange chromatography on a 30 cm long column with an inner diameter of 2 cm. The resin has a diameter of 100 μm and a void fraction of 0.3, and your mobile phase flows through the column at a rate of Q = 5 cm³/min. The Van Deemter coefficients A, B, and C have been determined to be 0.0228 cm, 0.0036 cm²/min, and 0.00053 min, respectively, for both proteins. Protein A elutes from the column with an average retention time of 27 min and standard deviation of 0.8 min. Protein B elutes from the column. with an average retention time of 33.8 min and standard deviation of 1.0. a) How many theoretical plates does the column contain? b) What flow rate (Q) will give you the maximum resolution? c) What is the minimum height of a theoretical plate for the system?
    4) A fixed bed adsorption unit contains rigid (incompressible) silica particles with a diameter of 120 um and porosity of 0.3. The resin bed is 200 cm long and has a diameter of 15 cm. A protein solution is pumped into the column at a rate of 50 L/min, and the mobile phase has a viscosity of 1.2 CP. a) What is the pressure drop for this system (in bar)? b) What would be the pressure drop if the particle diameter were decreased to 30 μm?

    Chapter 7 Solutions

    Elementary Principles of Chemical Processes, Binder Ready Version

    Ch. 7 - Prob. 7.11PCh. 7 - Prob. 7.12PCh. 7 - A piston?tted cylinder with a 6-cm inner diameter...Ch. 7 - Prob. 7.14PCh. 7 - Prob. 7.15PCh. 7 - Prob. 7.16PCh. 7 - Prob. 7.17PCh. 7 - Prob. 7.18PCh. 7 - Prob. 7.19PCh. 7 - Prob. 7.20PCh. 7 - Air is heated from 25°C to 140°C prior to entering...Ch. 7 - Prob. 7.22PCh. 7 - Prob. 7.23PCh. 7 - Prob. 7.24PCh. 7 - Prob. 7.25PCh. 7 - The conversion of the kinetic energy of wind to...Ch. 7 - Prob. 7.27PCh. 7 - Prob. 7.28PCh. 7 - Liquid water is fed to a boiler at 24°C and 10 bar...Ch. 7 - Prob. 7.30PCh. 7 - Prob. 7.31PCh. 7 - Saturated steam at a gauge pressure of 2.0 bar is...Ch. 7 - Prob. 7.33PCh. 7 - Prob. 7.34PCh. 7 - Prob. 7.35PCh. 7 - Prob. 7.36PCh. 7 - Prob. 7.37PCh. 7 - Prob. 7.38PCh. 7 - Prob. 7.39PCh. 7 - Prob. 7.40PCh. 7 - Prob. 7.41PCh. 7 - Jets of high-speed steam are used in spray...Ch. 7 - The following diagram shows a simpli?ed version of...Ch. 7 - Three hundred L/h of a 20 mole% C3H880 nC4H10gas...Ch. 7 - Air at 38°C and 97% relative humidity is to be...Ch. 7 - A mixture containing 65.0 mole% acetone (Ac) and...Ch. 7 - Superheated steam at T1(°C) and 20.0 bar is...Ch. 7 - Prob. 7.48PCh. 7 - Prob. 7.49PCh. 7 - Eight fluid ounces (1 qt = 32 oz) of a beverage in...Ch. 7 - Prob. 7.51PCh. 7 - Prob. 7.52PCh. 7 - Prob. 7.53PCh. 7 - Prob. 7.54PCh. 7 - Prob. 7.55PCh. 7 - Prob. 7.56PCh. 7 - Prob. 7.57PCh. 7 - Prob. 7.58PCh. 7 - Prob. 7.59PCh. 7 - Prob. 7.60PCh. 7 - Prob. 7.61PCh. 7 - Prob. 7.62PCh. 7 - Arsenic contamination of aquifers is a major...Ch. 7 - Prob. 7.64PCh. 7 - Prob. 7.65P
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