A Southern Georgia school district is considering ordering 52 propane-fueled sch
ID: 390226 • Letter: A
Question
A Southern Georgia school district is considering ordering 52 propane-fueled school buses. "They're healthier, they're cleaner burning, and they're much quieter than the diesel option," said a school administrator. Propane-powered buses also reduce greenhouse gasses by 23% compared to gasoline-powered buses and 77% compared to diesel ones. But they come at apremiumlong dash—$95,000 for a propane model, $13,000 more than the diesel equivalent. The propane bus operating cost (above and beyond fuel cost) is 27 cents/mile, compared to 36 cents for the diesel. Diesel fuel costs about $55/gallon in Georgia, about $1 more than propane. Bus mileage is 13 mpg for the propane model vs.12 mpg for diesel. The life of a school bus in the district averages 88 years, and each bus travels an average of 33,000 miles per year because the district is so large and rural. Which bus is the better choice based on a life-cycle analysis? The total cost of using one propane-fueled bus during its life cycle is $247,511 (Round your response to the nearest dollar.)
The total cost of using one diesel-fueled bus during its life cycle is _______ Round your response to the nearest dollar.)
considering ordering 52 propane-fueled school buses."They're healthier, hey're cleaner buming, and they're much quieter than t A Southem Georgia school district is Propane-powered buses aso reduce greenhouse gasses by 23% ompared to than the diessel equivaient s the diesel option," said a school administrator gasoinepowered buses and 7% compared to diesel ones Butthey come at a premum- 96C for a p operating cost (above and beyond fuel cost) is 27 cents/mie, compared to 35 cents for the diesel. Diesel fuel costs about $5ipalion in Georgia, about $1 more than for the propane model vs. 12 mpg for diesel. The Ife of a school bus in the datrict averages 8 years, and each bus travels the beter choice based on a life-cycle analysis? The propane bus propane. Bus mieage is 13 mpg an average of 33,000 mles per year because the distict is so large and rural. Which bus is bus during ts lie cycle is $ 247.511 Round you mesponse to the nearest dolter The total cost of using one propane-ued The total cost of unsing one des fueled bus during its ie cycle is Round your response to the nearest oar )Explanation / Answer
The life of an average school bus = 88 years
The number of miles a bus travels each year = 33000 miles
The total cost of using a bus during its life cycle = Cost of buying bus + Total operating cost + Total cost of fuel
Total operating cost = Operating cost per mile * The number of miles a bus travels each year * The life of an average school bus
Total cost of fuel = (Fuel cost per gallon * The number of miles a bus travels each year * The life of an average school bus) / Mileage of the bus
Now, using the above formulas and the specifications below-
Ans a)
Specifications for propane model
Cost of buying propane model = $95000
Operating cost of propane bus = 27 cents/mile or $0.27/mile
Propane fuel cost per gallon = $54
Mileage for propane model = 13 miles per gallon
The total cost of using one propane-fueled bus during its life cycle = 95000 + 0.27 * 33000 * 88 + (54 * 33000 * 88) / 13
= $12,941,849
Ans b)
Specification for diesel model
Cost of buying diesel model = $82000
Operating cost of diesel bus = 36 cents/mile or $0.36/mile
Diesel fuel cost per gallon = $55
Mileage for diesel model = 12 miles per gallon
The total cost of using one diesel-fueled bus during its life cycle = 82000 + 0.36 * 33000 * 88 + (55 * 33000 * 88) / 12
= $14,437,440
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.