A homeowner is considering these heating systems for heating his house: Electric resistance heating with $0.12/ kWh and 1 kWh = 3600 kJ, gas heating with $1.24/therm and 1 therm = 105,500 kJ, and oil heating with $2.3/gal and 1 gal of oil = 138,500 kJ. Assuming efficiencies of 100 percent for the electric furnace and 87 percent for the gas and oil furnaces, determine the heating system with the lowest energy cost.
A homeowner is considering these heating systems for heating his house: Electric resistance heating with $0.12/ kWh and 1 kWh = 3600 kJ, gas heating with $1.24/therm and 1 therm = 105,500 kJ, and oil heating with $2.3/gal and 1 gal of oil = 138,500 kJ. Assuming efficiencies of 100 percent for the electric furnace and 87 percent for the gas and oil furnaces, determine the heating system with the lowest energy cost.
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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A homeowner is considering these heating systems
for heating his house: Electric resistance heating with $0.12/
kWh and 1 kWh = 3600 kJ, gas heating with $1.24/therm
and 1 therm = 105,500 kJ, and oil heating with $2.3/gal and
1 gal of oil = 138,500 kJ. Assuming efficiencies of 100 percent
for the electric furnace and 87 percent for the gas and
oil furnaces, determine the heating system with the lowest
energy cost.
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