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Farah El-Mordeha
Obnovljivi izvori energije su: sunce, voda i
vjetar.
Oni su obnovljivi i ne
zagadjuju životnu
sredinu.
Bez ovih obnovljivih
izvora energije, život na
ovoj planeti bio bi ne
zamisljiv.
SUNCEVA ENERGIJA
sunce predstavlja najvazniji izvor
energije na zemlji.
Energiju
sunca covjek koristi na razne
nacine. Upotreba sunceve
energije poznata je u
poljoprivredi.Danas su u
upotrebi solarni paneli,to su
paneli koje pretvaraju suncevu
energiju u elektricnu
energiju.Staklenici zadrzavaju
suncevu toplotu i omogucavaju
da se u njima proizvode
voce ,povrce i cvijece tokom
cele godine.
Zanimljivosti o suncevoj
energiji
Najveci izvor
obnovljive energije
jeste sunce.
Energija sunca se
veoma efikasno
moze iskoristiti za
proizvodnju
toplotne energije
neophodne za
grejanje prostora i
zagrevanje vode.
ENERGIJA VJETRA
Energiju vetra covek koristi jos
od davnina za pokretanje
vetrenjaca i jedrenjaka.
Vetrenjace su se nekada koristile
samo za mlevenje zita. A danas
zahvaljujuci njima dobija se
elektricna energija. U tu svrhu
covek je izumeo specijalne
vetrenjace koje postavlja
pojedinacno ili kao farme
vetrova.
Zanimljivosti o energiji vjetra
Energija vjetra je bazirana na
kretanju zraka ,tj. na energiji
mase koja se krece na visini do
150m od same povrsine tla.
Naravno ovo je samo jedan
mali dio kretanja vazduha ali
jedino on moze biti korišten
zbog tehničkih rješenja
principa konverzije.
Energija vode
Voda je takodje nepresusan
izvor energije.
Danas se energija vode koristi
za dobijanje elektricne
energije.Pri tom procesu nema
uobicajenog zagadjenja,ali
dolazi do promjena stetnih za
prirodu.Hidroelektrane se
uobicajeno nalaze na branama
kojima se pregrađuje rijeka ,a
time se mjenja staniste vodenih
biljaka i zivotinja.
obnovljivi izvori energije.pptx

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obnovljivi izvori energije.pptx

  • 2. Obnovljivi izvori energije su: sunce, voda i vjetar. Oni su obnovljivi i ne zagadjuju životnu sredinu. Bez ovih obnovljivih izvora energije, život na ovoj planeti bio bi ne zamisljiv.
  • 3. SUNCEVA ENERGIJA sunce predstavlja najvazniji izvor energije na zemlji. Energiju sunca covjek koristi na razne nacine. Upotreba sunceve energije poznata je u poljoprivredi.Danas su u upotrebi solarni paneli,to su paneli koje pretvaraju suncevu energiju u elektricnu energiju.Staklenici zadrzavaju suncevu toplotu i omogucavaju da se u njima proizvode voce ,povrce i cvijece tokom cele godine.
  • 4. Zanimljivosti o suncevoj energiji Najveci izvor obnovljive energije jeste sunce. Energija sunca se veoma efikasno moze iskoristiti za proizvodnju toplotne energije neophodne za grejanje prostora i zagrevanje vode.
  • 5. ENERGIJA VJETRA Energiju vetra covek koristi jos od davnina za pokretanje vetrenjaca i jedrenjaka. Vetrenjace su se nekada koristile samo za mlevenje zita. A danas zahvaljujuci njima dobija se elektricna energija. U tu svrhu covek je izumeo specijalne vetrenjace koje postavlja pojedinacno ili kao farme vetrova.
  • 6. Zanimljivosti o energiji vjetra Energija vjetra je bazirana na kretanju zraka ,tj. na energiji mase koja se krece na visini do 150m od same povrsine tla. Naravno ovo je samo jedan mali dio kretanja vazduha ali jedino on moze biti korišten zbog tehničkih rješenja principa konverzije.
  • 7. Energija vode Voda je takodje nepresusan izvor energije. Danas se energija vode koristi za dobijanje elektricne energije.Pri tom procesu nema uobicajenog zagadjenja,ali dolazi do promjena stetnih za prirodu.Hidroelektrane se uobicajeno nalaze na branama kojima se pregrađuje rijeka ,a time se mjenja staniste vodenih biljaka i zivotinja.