Chemical Engineering 150A
Spring Semester, 2016
Homework 10: Turbulence & Intro to Heat Transfer
Problem 1
Water flows through a 150 mm diameter diameter pipe with an average velocity of 0.4 m/s.
Assuming that the velocity profile in turbulent flow is wel
Chemical Engineering 150A: Spring Semester 2016
Homework 9: Creeping flows and Boundary Layers
NOTE: This homework will not be collected or graded. However, it covers material that may be included in
Midterm 2.
1. In the figure below, a Newtonian fl
Example 1: Denn 8.3
An incompressible Newtonian liquid flows under the influence of gravity down an inclined plane at angle
to the horizontal. The flow rate per unit width is q. Compute the velocity distribution in the film and the
film thickness. The li
Week 4 Discussion Plan
Example 1: Bernoulli Equation, 2013 HW 4 problem (15 min)
Your grandfather has a cottage at the lake and needs to install a pump to feed water to the house. He plans
to pump water at night to fill a storage tank he has installed nex
NAME_
SECTION _
CBE 150A Spring 2016
Quiz #2 (Time limit: 10 minutes)
1. How many boundary conditions are needed for each independent variable in the following
partial differential equation, where h=h(x,y)?
3 h h
2 h
+
+
x=
x3 x
y2
3rd order PDE in x 3
NAME_
SECTION _
CBE 150A Spring 2016
Quiz #2 (Time limit: 10 minutes)
1. How many boundary conditions are needed for each independent variable in the following
partial differential equation, where h=h(x,y)?
3 h h
2 h
+
+
x=
x3 x
y2
2. Given the followin
Chemical Engineering 150A: Spring Semester 2016
Homework 11: Conduction
Due Thursday, April 14
1. A house has a composite wall of wood, fiberglass insulation, and plaster board, as indicated in the
sketch. On a cold winter day the convection heat tr
Chemical Engineering 150A
Spring Semester, 2016
Homework 12: Heat Transfer via Conduction
Problem 1
An electric wire having a diameter of 1.5 mm and covered with a plastic insulation (thickness = 2.5
mm) is exposed to air at 300 K and h0 = 20 W/ m2K. The
Chemical Engineering 150A
Spring Semester, 2016
Homework 13: Convective Heat Transfer
Problems 1-3 due Thursday, April 28
Problem 1
Heat transfer between an electrically heated circular cylinder and water is to be examined for
three different conditions.
NAME_
SECTION _
CBE 150A Spring 2016
Quiz #1 (Time limit: 10 minutes)
1. Plot the following function on the graph provided: " = 4
NAME_
SECTION _
CBE 150A Spring 2016
Quiz #1 (Time limit: 10 minutes)
1. Plot the following