HW2_B graded
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Stevens Institute Of Technology *
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Course
355
Subject
English
Date
Feb 20, 2024
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Pages
2
Uploaded by JusticeEnergy13124
Page 1 of 2
Name:_____________________________________
Lecture Section:___________
a) Calculate the PW for both the alternatives. (Do not use AW or FW) [3 point]
b) Calculate the AW for both thealternatives. (Do not use PW or FW) [3 points]
c) Calculate the FW for both the alternatives. (Do not use PW or AW) [3 points]
d) Which alternative should Alfa Romeo choose? Why? [1 point]
By: _________________________________________
E 355 Engineering Economics Spring 2019
assignment was completed on an individual basis.”
Annual O&M Cost
Description
First Cost
2.1 Alfa Romeo is considering developing a new auto pilot system using AI. They have narrowed their
choices down to two alternatives.
Salvage value
Annual Benefit
Homework #2
Kate Abel, Ph.D., Associate Professor
"I Pledge My Honor That I Have Abided by The Stevens Honor System and this
Life
MARR
10
15%
System B
$ 8,000,000 $ 300,000 $ 3,500,000 $ 1,100,000 10
15%
System A
$ 10,000,000 $ 400,000 $ 5,000,000 $ 1,000,000 PW
A = -P + Annual(P / A, i, N) + Salvage(P / F, i, N), i = MARR, and M = Million
= -10M - 1M(P/A, 0.15, 10) + 5M(P/A, 0.15, 10) + 0.4M(P/F, 0.15, 10)
= -10M - 1M((1.15)
10
- 1) / (0.15 (1.15)
10
) + 5M (5.02) + 0.4 (1.15)
-10
= $ 10,174,000
PW
B
= -P + A(P/A,i,N) + S(P/F,i,N)
= -8 + (3.5M - 1.1M) * (5.02) + 0.3M(0.247) = $ 4,122,000
Investment
Future Revenue
Revenue
Costs
Interest
Compounded
Annually
Daniel Vainer
B
Alternative A should be chosen because it has both the highest Present Worth and Annual Worth, while
alternative B only has a higher Future Worth.
3/3
3/3
2/3
=$16,661,600
3.5-1.1
1/1
13/14
Page 2 of 2
a) Calculate the EUAC for the System A. [1 points]
b) Calculate the EUAC for the System B. [1 points]
c) Calculate the EUAC for the System C. [1 points]
d) Which plan should be adopted? Why? [1 point]
System
A
B
E 355 Engineering Economics Spring 2019
Homework #2
C
2.2 A manufacturer has been ordered by the City of Hoboken to stop discharging waste liquids into the city
sewer system. You are the engineer responsible to make a decision to select one of the following systems Installed Cost
Annual Salvage Value
$ 48,000 $ 5,600 $ - Assuming the system is expected to last and be used for 10 years and money is worth 15%, which system
should be purchased?
$ 4,100 $ 1,300 $ 1,200 $ 2,900 $ 54,000 $ 76,000 System B should be adopted because it has the smallest equivalent uniform annual cost.
1/1
1/1
1/1
1/1
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