Nove tehnologije
Solarna elektrana koja radi no?u |
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Autor Iva Zelenko |
Nedjelja, 10 Srpanj 2011 22:26 |
Torresol Energy, španjolski konzorcij kojeg ?ine kompanije Masdar i SENER, izgradio je prvu solarnu elektranu, Gemasolar, koja proizvodi elektri?nu energiju danju i no?u. Elektrana se nalazi u blizini Seville, a ukupna snaga iznosi 19,9 MW. Gemasolar sadrži 2.600 heliostata raspore?enih na površini od 185 hektara koji usmjeravaju sun?evu svjetlost na središnji toranj visine 140 m kroz kojeg proti?u rastaljene soli nitrata. Soli prolaze iz „hladnog spremnika“ kroz prijemnik na vrhu tornja gdje se zagrijavaju na 565°C. Nakon toga vru?e soli prolaze kroz izmjenjiva? topline i stvaraju vodenu paru.
O?ekuje se proizvodnja elektri?ne energije 6.500 sati godišnje, što je oko tri puta više od proizvodnje drugih solarnih elektrana. To bi trebalo biti dovoljno za opskrbu 25.000 ku?anstava, te bi se na taj na?in smanjila emisija CO2 za 30.000 t godišnje.
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