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, cold, air, warm, water and/or conversion:
“Each dawn is clear
Cold air bites the throat.
Thick frost on the pine bough
Leaps from the tree
snapped by the diesel”
—Gary Snyder (b. 1930)
“An ardent lover often makes a cold friend.”
—Mason Cooley (b. 1927)
“Speak the speech ... trippingly on the tongue; but if you mouth it ... I had as lief the town crier had spoke my lines. Nor do not saw the air too much with your hand, thus, but use all gently; for in the very torrent, tempest, and as I may say the whirlwind of your passion, you must acquire and beget a temperance that may give it smoothness.”
—William Shakespeare (1564–1616)
“O’er her warm cheek and rising bosom move
The bloom of young desire and purple light of love.”
—Thomas Gray (1716–1771)
“The water for which we may have to look
In summertime with a witching wand,
In every wheelrut’s now a brook,
In every print of a hoof a pond.”
—Robert Frost (1874–1963)
“The conversion of a savage to Christianity is the conversion of Christianity to savagery.”
—George Bernard Shaw (1856–1950)