The National Geographic Magazine, Volume 149, Issue 3National Geographic Society., 1976 - Geography |
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Page 388
... electricity , vapor is condensed by cold water back into liquid and recycled . Cold water at 45 ° F. from 1,500 - foot depth is pumped through the telescoping pipe to the condensers , then discharged . Power cable transmits electricity ...
... electricity , vapor is condensed by cold water back into liquid and recycled . Cold water at 45 ° F. from 1,500 - foot depth is pumped through the telescoping pipe to the condensers , then discharged . Power cable transmits electricity ...
Page 389
... electric power . Steam boilers used in generating electricity require temper- atures of about 1,000 ° F. By comparison , a conventional flat - plate solar collector seldom gets above 200 ° F. To put sunshine to work producing electricity ...
... electric power . Steam boilers used in generating electricity require temper- atures of about 1,000 ° F. By comparison , a conventional flat - plate solar collector seldom gets above 200 ° F. To put sunshine to work producing electricity ...
Page 395
... electricity . The Shah of Iran may soon become a big Spectrolab customer . He has announced plans to bring electricity by the end of this decade to the 70,000 remote villages scattered throughout his land . Each hamlet will be equipped ...
... electricity . The Shah of Iran may soon become a big Spectrolab customer . He has announced plans to bring electricity by the end of this decade to the 70,000 remote villages scattered throughout his land . Each hamlet will be equipped ...
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