Term
| What are the three ways to harness ocean energy? |
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Definition
| Wave energy, tidal energy, and the temperature differences between water. |
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Term
Tidal powers require large tidal differences which, in the U.S.,
occur only in |
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Definition
|
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Term
| Ocean thermal energy conversion is limited to (where) |
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Definition
| Tropical regions, such as Hawaii, and to a portion of the Atlantic coast |
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Term
| Wave energy has a more general application, generally where? |
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Definition
The western coastline has the highest wave potential in the U.S.; in California, the greatest
potential is along the northern coast. |
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Term
| Tide mills were in use as far back as (when and where)? |
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Definition
| 1100 AD on the coast of Spain, France and the UK |
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Term
| What is the period of ebb and flow for a tide? |
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Definition
12 hours and 25 minutes
or half a lunar day |
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Term
| What is one significant advantage of tidal energy over solar and wind? |
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Definition
| It is accurately predictable |
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Term
| What is the world potential for harnessing tidal energy? |
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Definition
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Term
| The available tidal energy is approximately proportional to the: |
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Definition
| Square of the tidal range |
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Term
| In the open ocean, the maximum amplitude of the tides is about |
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Definition
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Term
| As the tide reaches the shore and the water depth decreases, the tidal flow can reach up to |
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Definition
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Term
Tidal amplitudes are increased substantially in estuaries
(Severn Bore and Hmuber in England, and Hoogly in India) as a
result of complex resonance effects and can reach |
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Definition
|
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Term
| What is the net output of the La Rance? |
|
Definition
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Term
| The global wave power resource is estimated at |
|
Definition
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Term
| If harnessed properly the amount of energy from deep water waves could provide what percentage of global energy demand? |
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Definition
| 10% of the total world energy demand |
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