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Topic

Boilers, Furnaces & Combustion · Question 1

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A. Combustion, boiler/furnace efficiency & fuel rate

A packaged boiler in a school heating plant fires $12\,\text{gal/h}$ of No. 2 fuel oil, and the combustion air supplied to its burner is measured at $1{,}590\,\text{lb/h}$ . The percent excess air is most nearly:

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