Cold Air/warm Water Conversion
In winter in coastal Arctic locations, seawater can be 40 °C (72 °F) warmer than ambient air temperature. Closed-cycle systems could exploit the air-water temperature difference. Eliminating seawater extraction pipes might make a system based on this concept less expensive than OTEC. This technology is due to H. Barjot, who suggested butane as cryogen, because of its boiling point of −0.5 °C (31.1 °F) and its non-solubility in water. Assuming a level of efficiency of realistic 4%, calculations show that the amount of energy generated with one cubic meter water at a temperature of 2 °C (36 °F) in a place with an air temperature of −22 °C (−8 °F) equals the amount of energy generated by letting this cubic meter water run through a hydroelectric plant of 4000 feet (1,200 m) height.
Barjot Polar Power Plants could be located on islands in the polar region or designed as swimming barges or platforms attached to the ice cap. The weather station Myggbuka at Greenlands east coast for example, which is only 2,100 km away from Glasgow, detects monthly mean temperatures below −15 °C (5 °F) during 6 winter months in the year.
Read more about this topic: Ocean Thermal Energy Conversion
Famous quotes containing the words cold, air, warm, water and/or conversion:
“How dost, my boy? Art cold?
I am cold myself. Where is this straw, good fellow?
The art of our necessities is strange
And can make vile things precious.”
—William Shakespeare (1564–1616)
“All things are flowing, even those that seem immovable. The adamant is always passing into smoke. The plants imbibe the materials which they want from the air and the ground. They burn, that is, exhale and decompose their own bodies into the air and earth again. The animal burns, or undergoes the like perpetual consumption. The earth burns, the mountains burn and decompose, slower, but incessantly.”
—Ralph Waldo Emerson (1803–1882)
“Upon entering my vein, the drug would start a warm edge that would surge along until the brain consumed it in a gentle explosion. It began in the back of the neck and rose rapidly until I felt such pleasure that the world sympathizing took on a soft, lofty appeal.”
—Gus Van Sant, U.S. screenwriter and director, and Dan Yost. Bob Hughes (Matt Dillon)
“Not yet old enough for a man, nor young enough for a boy; as a squash is before ‘tis a peascod, or a codling when ‘tis almost an apple. ‘Tis with him in standing water between boy and man.”
—William Shakespeare (1564–1616)
“The conversion of a savage to Christianity is the conversion of Christianity to savagery.”
—George Bernard Shaw (1856–1950)