12. Which of the following reduces the dewpoint temperature of a fossil fuel pow

Question

12. Which of the following reduces the dewpoint temperature of a fossil fuel powerplant's exhaust: (a) increased hydrogen content of the fuel (b) increased total pressure (c) increased excess air (d) increased relative humidity of combustion air. 13 (a) possibility of drift losses of water A natural draft cooling tower is very tall because: droplets is minimized (b) large quantities of packing are needed to compensate for the low air velocities achieved by the tower. (c) possibility of spreading Legionnaire's Disease is minimized (d) the amount of draft provided for pulling air through the tower is proportional to the tower height. 14. The Solar One and Solar Two "power tower" projects are examples of solar thermal power production as opposed to solar photovoltaics. T or F?

Explanation / Answer

12) a

13) d. Height is proportional to draft produced.

14) True.

Solar one concentrates solar energy to produce steam and runs turbine.

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