1) Yes, I am interested in attending a plant trip. I feel that going on a plant trip will allow students to
learn about what a day in the life of a chemical engineer is like. Its one thing to hear a chemical
PressureForceonCylinder. ThepressureforceininviscidflowisgivenbytheintegralF= S pndS.
p cos i
pcos ad i
sin j ad
psin ad j
7.52. An aqueous solution with a specic gravity of 1.12 ows through a channel with a variable cross
section. Data taken at two axial positions in the channel are shown here.
9.77 X 104 Pa
u 5.00 mfs ?
Point 2 is 6.00 meters higher than poi
v i y re
e r as
v i y re
e r as
Problem Set #1
1. The velocity profile for a film of liquid flowing down a vertical wall is given by
where L is the thickness of the film, is the downward velocity, is the distance
perpendicular to the wall and and are the
The LyondellBasell Plant in Clinton, IA produces ethylene via a steam cracking reaction. Over
time, the plant has built different furnaces to expand production utilizing an ethane/propane
feedstock. As a consultant with Roger Adams Chemical,
Problem Set #6
In a coating process, strands of wire, diameter D are dipped into a tank of viscous liquid and
withdrawn allowing the excess liquid to drain off. The thickness h of the coating and the time t
required to drain are fun
Problem Set #7
1 Water flows through a shell and tube heat exchanger with cross-section consisting of: nine 2.5 cm
OD tubes inside a 15 cm ID pipe.
What is the equivalent diameter for the shell side of the unit;
i.e. for flow through
Problem Set #3
1 A wide plastic film is being pulled upward at speed from a coating tank as
shown. The film is covered with a layer of liquid of thickness which tends
to flow downward under the action of gravity. The pressure at the f
Problem Set #10
Superheated steam at 400 oF flows through a horizontal 4" diameter pipe at a rate of 250 lbm/hr.
The surrounding air temperature if 60 oF.
Properties: Steam at 400 oF
U = .0289 lbm/ft3
X = 3.77 x 10-4 ft2/sec
Pr = .9
Problem Set #4
1 A fluid suspension is placed in a rheometer and the data below is found for shear stress as a function
of shear rate du/dr. Plot this data (log-log) and find the coefficients K, n assuming a power law model.
Problem Set #8
1) A thermopane window consists of two pieces of glass each 1/8" thick separated by a layer of dry,
stagnant air 1/2" thick. Find the resistance of a 4 ft 6 ft thermopane window. Suppose the window is
made by fastening
Problem Set #9
From previous PS # 8, we have the following information:
A double pipe heat exchanger is constructed of 150 ft steel pipe (2.5 in OD, 2.1 in ID) jacketed with 3.5
in ID steel pipe. Hot water at the rate of 20,000 lbm/hr ent
Problem Set #5
1 Find the Reynolds number for the following flows:
a baseball thrown at 100 mph
water flowing inside a 1" ID pipe at 12 gpm
a runner running 100 m in 9.79 secs.
2 Find the settling velocity for a 100 micron diameter pa
Note: The numbers used in problems 3, 4 and 5 below are slightly different than those used in the
2016 PS#1, but the method of solution is identical to the procedure for this years problems.
Problem Set #1
The velocity profile for a film of li
m Pcwer 1w Hm]
I = K;
Base M 3m M) Aefw q rekmaa skew 5M5:
M6 SM? (all a; \Jyne A s".
Plo-I- dam Md HA6 K. FIN \og-log Plot
Hm noks P45, wekave.
AP = -2 KL BIH'\ ab)
Or wk as n
ffv) " 2 %)< V 5)
DEL] EELSJ WI'EA-rl 32]
Core arWP: 0, m
4:9"- cfw_1(Eiybal. _g_
x 1) P31) ?arame+ers
M LN Fi-5] 24: sE-tJ
CON SfOuP : F) U, L
Depewdpd- va r'. ebb,
cfw_'(JUL I) U-
H now he exmy wig-Scali-