The energy contents, unit costs, and typical conversion
Chapter 2, Problem 110P(choose chapter or problem)
The energy contents, unit costs, and typical conversion efficiencies of various energy sources for use in water heaters are given as follows: \(1025 \mathrm{Btu} / \mathrm{ft}^{3}\), \(\$ 0.012 / \mathrm{ft}^{3}\), and 85 percent for natural gas; \(138,700 \mathrm{Btu} / \mathrm{gal}\), \(\$ 2.2 /\) gal, and 75 percent for heating oil; and \(1 \mathrm{kWh} / \mathrm{kWh}\), \(\$ 0.11 / \mathrm{kWh}\), and 90 percent for electric heaters, respectively. Determine the lowest-cost energy source for water heaters.
Equation Transcription:
Text Transcription:
025 Btu/ft^3, $0.012/ft^3
138,700 Btu/gal, $2.2/gal
1 kWh/kWh, $0.11/kWh
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