AUTOMOTIVE TECHNOLOGY -W/MINDTAP ACCESS
7th Edition
ISBN: 9780357096789
Author: ERJAVEC
Publisher: CENGAGE L
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Chapter 36, Problem 6SA
Why is water control so important to the effectiveness of a PEM fuel cell?
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The question has been set up with all the cuts needed to accurately derive expressions for V(x) and M(x). Using the cuts free body diagrams set up below, derive expressions for V(x) and M(x). If you use the method of cuts then validate your answers using calculus or vice versa.
It is required to treat 130 kmol/hr of chloroform-air feed gas mixture that contains
12% chloroform. It is required to remove 93% of chloroform using 150 kmol/hr of
solvent that contains 99.6% water and 0.4% chloroform. The cross sectional area of the
column is 0.8 m². Calculate the column height using the following data; kx'.a = 1.35
(kmol/m³.s (Ax)), and ky'.a = 0.06 (kmol/m³.s (Ay)), kx/ky = 1.35, and the equilibrium
data are:
X 0 0.0133 0.033
y 0 0.01 0.0266
0.049 0.064 0.0747 0.0933 0.1053
0.0433 0.06 0.0733
0.111
0.1
0.12
0.14
४
B:
Find the numerical solution for the 2D equation below and calculate the temperature values for
each grid point shown in Fig. 2 (show all steps).
(Do only one trail using following initial values and show the final matrix)
[T1]
T₂
T3
[T] 1
=
[0]
0
0
d
dx
dx)
(ka)+4(ka)
=
dy
-20xy, k = 1 + 0.3 T
ge
L=3cm, 4x= Ay
B.Cs.:
at x=0=LT=0°C
at y=0-L T=10°C
Fig. (2)
Chapter 36 Solutions
AUTOMOTIVE TECHNOLOGY -W/MINDTAP ACCESS
Ch. 36 - Why are carbon dioxide emissions a concern?Ch. 36 - List five things a driver of a BEV can do to...Ch. 36 - What makes up the propulsion system in a BEV?Ch. 36 - What basic factors affect the required time to...Ch. 36 - There are two basic ways a BEV is connected to an...Ch. 36 - Why is water control so important to the...Ch. 36 - Explain what the ratings of kilowatts and kilowatt...Ch. 36 - True or False? All fuel cell vehicles have...Ch. 36 - True or False? A PEM fuel cell needs to operate at...Ch. 36 - Which of the statements about hydrogen is true? a....
Ch. 36 - Which of the following CANNOT be used as a source...Ch. 36 - Which of the following statements about fuel cells...Ch. 36 - What is the basic fuel for a fuel cell? a....Ch. 36 - The component that changes the molecular structure...Ch. 36 - Which of the following statements about hydrogen...Ch. 36 - Technician A says power is the ability to do work....Ch. 36 - While discussing inductive charging: Technician A...Ch. 36 - Technician A says some BEVs use liquid to heat the...Ch. 36 - While discussing charger connections: Technician A...Ch. 36 - Technician A says that a fuel cell produces...Ch. 36 - While diagnosing the control system of a BEV:...Ch. 36 - Prob. 7ASRQCh. 36 - Technician A says that all FCEVs have regenerative...Ch. 36 - Technician A says that gasoline can be used as a...Ch. 36 - While discussing hydrogen: Technician A says that...
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