A 750 MW power plant is burning coal that has the following prop- erties (among many others): heating value = 23,500 kJ/kg, carbon con- tent = 60%, ash content 9%, sulfur content = 2.2%, and mercury content = 120 ppb. The plant has an overall thermal efficiency of 37.5%. Assume that 20% of the ash falls out in the bottom of the fur- nace and the rest (the fly ash) goes out with the gases. An ESP collects the PM, and a wet scrubber controls SO2. The required air pollution control device efficiencies are as follows: the ESP is 99.4% efficient; the wet scrubber is 92% efficient.

A 750 MW power plant is burning coal that has the following prop- erties (among many others): heating value = 23,500 kJ/kg, carbon con- tent = 60%, ash content 9%, sulfur content = 2.2%, and mercury content = 120 ppb. The plant has an overall thermal efficiency of 37.5%. Assume that 20% of the ash falls out in the bottom of the fur- nace and the rest (the fly ash) goes out with the gases. An ESP collects the PM, and a wet scrubber controls SO2. The required air pollution control device efficiencies are as follows: the ESP is 99.4% efficient; the wet scrubber is 92% efficient.

Sustainable Energy

2nd Edition

ISBN:9781337551663

Author:DUNLAP, Richard A.

Publisher:DUNLAP, Richard A.

Chapter15: Geothermal Energy

Section: Chapter Questions

Problem 1P

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