The energy contents, unit costs, and typical conversion efficiencies of various energy sources for use in water heaters are given as follows: 1025 Btu/ft3, $0.012/ft3, and 85 percent for natural gas; 138,700 Btu/gal, $2.2/gal, and 75 percent for heating oil; and 1 kWh/kWh, $0.11/kWh, and 90 percent for electric heaters, respectively. Determine the lowest-cost energy source for water heaters.
The energy contents, unit costs, and typical conversion efficiencies of various energy sources for use in water heaters are given as follows: 1025 Btu/ft3, $0.012/ft3, and 85 percent for natural gas; 138,700 Btu/gal, $2.2/gal, and 75 percent for heating oil; and 1 kWh/kWh, $0.11/kWh, and 90 percent for electric heaters, respectively. Determine the lowest-cost energy source for water heaters.
College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter20: Electric Current, Resistance, And Ohm's Law
Section: Chapter Questions
Problem 68PE: Integrated Concepts (a) What is the cost of heating a hot tub containing 1500 kg of water from...
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The energy contents, unit costs, and typical
conversion efficiencies of various energy sources for
use in water heaters are given as follows: 1025 Btu/ft3,
$0.012/ft3, and 85 percent for natural gas; 138,700 Btu/gal,
$2.2/gal, and 75 percent for heating oil; and 1 kWh/kWh,
$0.11/kWh, and 90 percent for electric heaters, respectively.
Determine the lowest-cost energy source for water heaters.
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