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7 Cards in this Set
- Front
- Back
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renewable energy |
energy sources that are more or less continuously available |
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principle energy sources |
petroleoum, coal ,NG |
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passive solar energy |
heated by an external source |
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active solar energy |
requires input of pumping heat through a collector |
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non-concentrating collectors |
area storing heat is the same size as the area getting it |
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concnetrating collectors |
SA of heat gathering is much bigger than the thing being heated |
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d |
