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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 $1.38/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. The unit energy cost of natural gas heater is $ |x 10-6/kJ. The unit energy cost of heating oil heater is $ 10-6/kJ. The unit energy cost of electric heater is $ 10-6/kJ. The heating system with the lowest energy cost is natural gas heater v

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 $1.38/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. The unit energy cost of natural gas heater is $ |x 10-6/kJ. The unit energy cost of heating oil heater is $ 10-6/kJ. The unit energy cost of electric heater is $ 10-6/kJ. The heating system with the lowest energy cost is natural gas heater v

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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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 $1.38/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. The unit energy cost of natural gas heater is $ × 10-6/kJ. The unit energy cost of heating oil heater is $ 10-6/kJ. The unit energy cost of electric heater is $ 10-6/kJ. The heating system with the lowest energy cost is natural gas heater v
Transcribed Image Text: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 $1.38/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. The unit energy cost of natural gas heater is $ × 10-6/kJ. The unit energy cost of heating oil heater is $ 10-6/kJ. The unit energy cost of electric heater is $ 10-6/kJ. The heating system with the lowest energy cost is natural gas heater v
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