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Energy 15

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Energy 15
By:Farkhondeh Parsa

Published in: Education
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Energy 15

  1. 1. (I6) 6525' BY: l'an-khonde pan-sa
  2. 2. Solar energy is obtained from sunlight. Solar energy has been used by humans for a long time for uses such as heating, cooking food, removing salt from seawater and drying clothes. These clays it is also used to create electricity. As technology has improved, solar power costs have decreased and it has become a more viable alternative, competing with energy sources such as coal and oil. While solar power is becoming more efficient, it only provides a small fraction of the world's energy supply. Solar cells convert light energy into electricity. Solar cells are also called photovoltaic cells. Solar cells can be used to power portable devices such as calculators. Large numbers of solar cells are put together to create solar panels. The largest solar power plant in the world is found in the Mojave Desert, USA. Spacecraft and space stations such as the International Space Station (ISS) often use solar panels to generate power. .044‘ H4‘ 9-4 ‘-2 -ev-7-uiui J‘ .5-I: -5;: -3 J3.-'-l jlJ. .d¢. 'u. J_; l:£ . s1,.3,, .;. s., .L. ,§a. ‘.sL. ¢u nu: ... l , r,, _,: y,h; ..n. .<. ,,i, ,;, u.: ih. .,: ,_, .;, .:. ,-,3 gjjl . ~‘-cl 9493-£925 -‘-354 ‘-124 9‘ .5523‘ .1“ ‘-'-.4} ~~= --l '55‘-. i -U. -4-.4 .1531:-'-5-‘i *5 4.9531-0.~= --l '-*-'| '---‘ by .3» -‘Ht. -l .1‘)! U 0‘ “JJ; C). -l J J«'-- J5’-3 we .55)-'-' . g,-U» 9 c-. -Li. --'---‘.5 ~. --u- .23!-. -1+ 4-: «-. - J. -x. -= u on -: --I 4:-in . ;-u J-It-521$ M‘) U Joe 2-‘ .5325‘ *-'4)’-J‘ .45-3.95 oi-5+ H-'-5-)3 -U-U5 0--5 J9-‘:9 45 4-—-l . :-»-= -,-. o'- J3)-3' 45 . _.I-xx A-'-‘~44 Jx 4-: U . u-'- .9323‘ . .s-. -‘-. ~.9'- .1“ Jal- . -U4 . _¢- Heel-3 ~5-1-oi-'-Lu’-5 all . J.o-l- J-In-L. v'h all .533- _a, .:. __, ..; Li2.. i., .L. .s, ;,, .:. L.. :z5. .;. ... ,x, i.i. _gu . i$. '.. ..a. ;., .l«. ,,. ;,i_, .'. ,.1,. ._s. s,. ;,, .L Ju J, L. . .¢ai-5-, -.o'- all J-‘vi-: -‘Le. -| J’)! M is -83;” 2'} .5-ii--F-pi J‘-I . i.ol-- 3‘ .5495 Juli J Lee‘-«'45 .494 . _¢- -551; L‘-u-l ---"H ~91‘-ii —.5JM. >- . :b--4 xi 9-‘ Ca‘-0+ 2-‘ .1-9»: -so-i ti-’-.9); -i 00-34): .3» 493.05 abs . .m~‘-. .o‘= all .159 2| --M‘--I a-45‘ (ISS) _. u-an ; ».»_, .»-‘A5 -‘3-'v--al 411- .4-hi -t3:--ii
  3. 3. Using the wind to create electricity has been around for a long time, you've probably seen windmills on farms. When the wind turns the blades of a windmill, it spins a turbine inside a small generator to produce e| ectricity, just like a big coal power plant. ‘5l. § o. _il, ul‘ILA3alLAJiu; iul: J_g, iu5‘JJhGnAJ. _|‘5l_; :loil)hl_)AJjgJ¢,1l‘5lJg. lQjlMl. i3ullg -‘~. ' oi-be ‘HI U or ~-ii-'59» G5» l5'lL. l -. "e-l :5‘-5 45-. -3 Jjxe Ale 45 @1345 . -sl 9-94 5.4)‘ J-‘ «:49 3.5. J4.» arc; arms: -<-_- .12» cw: ~32! -lab-3 abs J-us mus; 6-. Jan .4 ore»:
  4. 4. This animation shows how a solar thermal power plant uses mirrors to focus solar energy and create electricity. 552'‘ )5»? ! ‘H ‘Gel }l= -‘L5-1-~lL. = . s4.+~"~, u-‘- _o3.b-*- 913.935 6-: ‘-3.9‘-.1 ‘*5 -N. -A oi-7-3 cal -5&5 .31 9-H‘ J . ~'--. »4;. ~'= 9", .» mi ; r-ar. i:. rt: n.- I nan: -n ; o:nire: _' source of music: zuch :2 a rim Ix‘-r r-crvi Pit
  5. 5. The pool pump motor is used to drive the water from the pool up to the solar panels on the roof. The solar panels heat the pool water and return it to the pool. The system normally uses an Auto Controller (see the animation below) so that the solar panels only heat water when they are hot enough to do so. .ol -33-» .54; J9 is-|2~lu. o$ alt J31: ‘H J53--l 3‘ el oil; *3 0-7-ea =4‘-53--l 1'9-l~= u.= My L3 Jr‘-Joli 9 a5--. - c'>el. €-I--l)'=3~" “~. = ‘J O‘ ~35-35‘-. =JJ'=3-fll *-. -Ill Q-U5 «U3 d4.»-7-JJ5 .5‘-5 Jib, U ‘-93 all .5-Iiv5;.9$ Jl-O J39 45 52.95 *9 U 223 Cw‘-. A4e5l) $54.95 J43-'-5 6-. » 3‘ °-ll-53*»-l . -I-5*‘-9 w J5 09‘ eL'. -5‘ ‘la 923 . ;-5‘-5 °5l-5l ‘-9 H-3‘ ‘-5 -. -3'-U’ l Celine tor Sum llrx A Illa Gorttralu 1' I79 tetrrp (flea (and yva-3 ear)
  6. 6. Solar water heaters clean energy to heat domestic hot water J-iii El-3 eel 0-115 9} db: i. s-%. =Ju. +'= 05 N3 all r 4 c u o c o a v c a a s e c u e o e n o e a n e

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