An industrial grade boiler that uses fuel oil no. 4 needs to be upgraded to meet

Question

An industrial grade boiler that uses fuel oil no. 4 needs to be upgraded to meet the new environmental regulations. The operator has decided to use natural gas with a higher heating value HHV'=37,925 kJ/m3 (1025 Btu/ft3) and a specific gravity of 0.592. This will require a major retrofit of the boiler. What will be the increase in flow rate of fuel that the boiler needs to handle? Assuming today's costs of fuel, indicate the change in cost incurred by the operator to meet the new specifications of the boiler. State your assumptions clearly.

Explanation / Answer

Could you be more specific and identify your variables?

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