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Why solar water heating?
, T; A/ M3 R1 a7 H; YAmount of energy used today to heat domestic water is enormous.
2 R0 a% p( N$ h% E8 q' l4 lCompared to burning of fossil fuels, direct energy from the Sun produces heat5 q: z% G! k) L. l
that is almost free, environmentally clean and socially more acceptable.
, m8 z1 p2 I% Z8 S8 Q2 Q# i0 APossible energy savings for hot water in sunnier places are 80 percent or more
8 H) }! `1 [+ ?" {and in cloudiest climates are from 50-60 percents. |
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发表于 2009-8-1 07:05:49
