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Old 06-13-2007   #81 (permalink)
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Smile Re: Salt, NaCl, Sodium Chloride.

Quote:
Originally Posted by Star30 View Post
Right GAHD! I lived in Bermuda in the late 80's. Many or all of the local buildings and homes were made of limestone with the roof white and "staggered" with collection holes to collect water in tanks beneath the structure.
Many years ago it was illegal to have water tanks in this area.
Now the Council subsidizes their installation!

I talked to a Guy at the IAI conference who worked for a big power Station up north.
I ran the "de-sal at power plant" thing by him and he thought it was a good idea. Power Stations need to keep a base load going. At night, he said, they need to gradually "step down" their massive generators. CO2 wise, this is not very efficient use of the energy produced by burning the coal. A lot of energy is wasted gradually stepping down the massive generators over a period of hours.
Sometimes they need to expend a lot of energy going to get an extra power station on line to cope with peak demand.
He also said that seawater used for cooling is warmed to 50C anyway, so it is not a lot more to get to 101C.
I suppose it is a matter of economics, perhaps of perception, perhaps of conservative thinking; but the Professor's new technology (above) looks good.


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