Solution Manual for Engineering Economy, 18th Edition by William G. Sullivan Elin M Wicks Joseph H. Wilckv
Solution Manual for Engineering Economy, 18th Edition by William G. Sullivan Elin M Wicks Joseph H. Wilckv
,Solution Manual for Engineering Economy, 18th Edition by William G. Sullivan Elin M Wicks Joseph H. Wilckv
Solutions to Chapter 1 Problems
A Note To Instructors: Because of volatile energy prices in today's world, the instructor is encouraged to vary energy
prices in affected problems (e.g. the price of a gallon of gasoline) plus and minus 50 percent and ask students to
determine whether this range of prices changes the recommendation in the problem. This should make for stimulating in-
class discussion of the results.
1-1 (a) 62 million tons per year × (0.05) = 3.1 million tons per year of reduced greenhouse gas
$1.2 billion ÷ 3.1 million tons per year = $387.10 per ton
(b) 3 billion tons per year × (0.03) = 90 million tons per year of reduced greenhouse gas
$1.2 billion $X billion
=
3.1 million tons 90 million tons
X = $34.84 billion
Copyright © 2025 Pearson Education, Inc.
,Solution Manual for Engineering Economy, 18th Edition by William G. Sullivan Elin M Wicks Joseph H. Wilckv
1-2 The primary disadvantage is the installed cost of $8,000 (rather expensive!). A key advantage of
synthetic turf is the annual savings due to lawn maintenance. This may be worth up to $1,000 per year
when periodic lawn mowing, watering, and feeding are avoided.
See what other monetized advantages and disadvantages members of your class can identify. Be
creative!
Copyright © 2025 Pearson Education, Inc.
, Solution Manual for Engineering Economy, 18th Edition by William G. Sullivan Elin M Wicks Joseph H. Wilckv
1-3 Cost per Watt-hour = $0.75/1.5 Watt-hours = $0.50 per Watt-hour
At a cost of $0.50 per Watt-hour, it would cost (1,000)($0.50 per Watt-hour) = $500 per kilo Watt-hour
for power from a single AAA battery. This is 5,000 times more costly than energy from your local
utility. No wonder we turn off our battery operated devices when we're not using them!
Copyright © 2025 Pearson Education, Inc.
Solution Manual for Engineering Economy, 18th Edition by William G. Sullivan Elin M Wicks Joseph H. Wilckv
,Solution Manual for Engineering Economy, 18th Edition by William G. Sullivan Elin M Wicks Joseph H. Wilckv
Solutions to Chapter 1 Problems
A Note To Instructors: Because of volatile energy prices in today's world, the instructor is encouraged to vary energy
prices in affected problems (e.g. the price of a gallon of gasoline) plus and minus 50 percent and ask students to
determine whether this range of prices changes the recommendation in the problem. This should make for stimulating in-
class discussion of the results.
1-1 (a) 62 million tons per year × (0.05) = 3.1 million tons per year of reduced greenhouse gas
$1.2 billion ÷ 3.1 million tons per year = $387.10 per ton
(b) 3 billion tons per year × (0.03) = 90 million tons per year of reduced greenhouse gas
$1.2 billion $X billion
=
3.1 million tons 90 million tons
X = $34.84 billion
Copyright © 2025 Pearson Education, Inc.
,Solution Manual for Engineering Economy, 18th Edition by William G. Sullivan Elin M Wicks Joseph H. Wilckv
1-2 The primary disadvantage is the installed cost of $8,000 (rather expensive!). A key advantage of
synthetic turf is the annual savings due to lawn maintenance. This may be worth up to $1,000 per year
when periodic lawn mowing, watering, and feeding are avoided.
See what other monetized advantages and disadvantages members of your class can identify. Be
creative!
Copyright © 2025 Pearson Education, Inc.
, Solution Manual for Engineering Economy, 18th Edition by William G. Sullivan Elin M Wicks Joseph H. Wilckv
1-3 Cost per Watt-hour = $0.75/1.5 Watt-hours = $0.50 per Watt-hour
At a cost of $0.50 per Watt-hour, it would cost (1,000)($0.50 per Watt-hour) = $500 per kilo Watt-hour
for power from a single AAA battery. This is 5,000 times more costly than energy from your local
utility. No wonder we turn off our battery operated devices when we're not using them!
Copyright © 2025 Pearson Education, Inc.
