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A boiler has an energy output of 120,000MJ/h. The coal used in the boiler has a gross calorific value of 18.6MJ/kg, and the coal flow

A boiler has an energy output of 120,000MJ/h. The coal used in the boiler has a gross calorific value of 18.6MJ/kg, and the coal flow rate is 9,000kg/h. What is the boiler efficiency?

Select one:

71.68%

139.5%

88.3%

82.4%

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