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Die toenemende gebruik van alternatiewe energiebronne lei daartoe dat die vraag na elektrisiteitsvoorziening in Suid-Afrika drasties afneem - NSC Agricultural Technology - Question 3 - 2016 - Paper 1

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Die toenemende gebruik van alternatiewe energiebronne lei daartoe dat die vraag na elektrisiteitsvoorziening in Suid-Afrika drasties afneem. 3.1.1 Noem TWEE tipes e... show full transcript

Worked Solution & Example Answer:Die toenemende gebruik van alternatiewe energiebronne lei daartoe dat die vraag na elektrisiteitsvoorziening in Suid-Afrika drasties afneem - NSC Agricultural Technology - Question 3 - 2016 - Paper 1

Step 1

Noem TWEE tipes energie wat op windenergiestelsels van toepassing is.

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Answer

Die tipes energie is: 1. Meganiese energie/rotasie energie; 2. Elektrisiese energie.

Step 2

Hoe kan die rotor van 'n windturbine beskerm word wanneer dit gedurende 'n erge windstorm te vinnig roter?

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Answer

Die verandering van die hellingshoek van die lemme sal die rotor stadiger laat draai.

Step 3

Verduidelik die begrip integrasie met betrekking tot alternatiewe energiebronne.

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Answer

Wanneer twee of meer alternatiewe energieopwekkingsstelsels gekombineer word, word dit integrasie genoem.

Step 4

Beskryf die proses wat in die sonpaneel plaasvind wanneer elektrisiteit uit sonenergie opgewek word.

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Answer

Die sonpaneel word gemaak van 'n 'sferm-geleiende materiaal, die mees algemene materiaal is silikoon. Wanneer fotone (soos veral in die sonlig) die sonnelektrisiteit, is dit die enige energie wat dit kan gebruik. As die energie van die fotone groot genoeg is, sal die elektrone in staat wees om vry te wees, en 'n elektriese lading deur 'n kring na 'n bestemming te draai.

Step 5

Gee DRIE redes waarom 'n sonpaneel nie tot sy volle potensiaal funksioneer nie.

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Answer

  1. Wanneer die elektrone hitte vrystel, kan die paneel ook warm word, en in name met ander aspekte van die sonpaneel. 2. Die aantal sonlig bepaal die doeltreffendheid van die stelsel. 3. Duur natuurlike energie tegnologie produkte verhoog doeltreffendheid en die geokperde koste.

Step 6

Noem die komponent wat aan 'n sonpaneelstelsel gekoppel kan word om opgewekte energie te stoor en te gebruik wanneer sonlig nie beskikbaar is nie.

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Answer

Die komponent is 'n Battery.

Step 7

Noem TWEE voordele van sonenergie.

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Answer

  1. Sonkrag-tegnologie eindeloos. 2. Sonkrag-tegnologie is heeltemal skoon, met geenreste, afval of nuwe produkte en enige aard nie.

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