Presentation of Solar Cooker

8/20/2019 Presentation of Solar Cooker

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THE SOLAR COOKING COMPETITION

OUR SOLAR COOKER

By: Elizabeth Simon, Kevin Yok and Liew Jien Jie

(Representin the s!hool o" S#K #erba$%


2/20

&bstra!t#ankind will !ontin$e to $se enery, even i" we all make a !on!erted to !$t

down on o$r !ons$mption'

So another important step to take i" we want to save the environment is to

"ind alternative ways to prod$!e and $se s$stainable, !lean enery'he main p$rpose o" o$r pro)e!t is to repla!e old wood "$el stoves with an

e!o*"riendly solar !ooker that $ses +reen+ enery'

& solar !ooker is a devi!e whi!h $ses the enery o" s$nliht to heat "ood or

drink or to sterilize it'

Solar !ookin is a "orm o" o$tdoor !ookin and is o"ten $sed in sit$ationswhere minimal "$el !ons$mption is important, or the daner o" a!!idental

"ires is hih'

he vast variety o" the solar !ookers presently in $se are !heap, low te!h

devi!es be!a$se they $se no "$el, no ele!tri!ity re$ired to operate, they

red$!e air poll$tion and slow de"orestation and deserti"i!ation'


3/20

-b)e!tive . &imo !ook "ood in the pro!ess o" $sin solar enery instead

o" ele!tri!ity or "$el

o "ind an alternative way to !ook witho$t $sin "$el'o !on!eive an innovative idea to save reso$r!es'


4/20

/ntrod$!tion and 0roblem Statements1e wo$ld !ontin$e to waste earth2s reso$r!es witho$t

proper manaement and e""i!ien!y'

/n order to solve this problem, we need an alternative wayto over!ome o$r needs "or enery' his leads $s to the $se

o" reen enery, a brilliant and e""e!tive way to over!ome

the problem'


5/20

&dvantaeso !onserve the $sae o" "$el'

o save o$r !ost by p$r!hasin low !ost o" prod$!ts

instead o" hih !ost o" "$el'0revent o" air poll$tion'

0revent o" lobal warmin'

here is no daner o" b$rnin "ood and "lavo$rs remain

inta!t'


6/20

3isadvantaes-nly "$n!tions d$rin day time when weather is hot and

s$nny'

akes $ite lon to !ook'akes lon time to b$ild the solar !ooker'

Solar !ookers are not as e""i!ient at retainin heat as

!ompared to !onventional !ookin devi!es'

here is a risk o" a!!idental in)$ry or b$rns i" theapplian!e is not $sed properly


7/20

#aterials4ravels

35 &rte bla!k mat boards

6oil paper

#ani"yin lass

&7 0aper

0lasti! book wrapper

Spray paint : Bla!k 8$mber 9

0oly "oam


8/20

&pparat$s;ml water !ontainer that absorbs heat

Bla!k bindin tape

S!issors

0


9/20

0i!torial 3es!riptions and StepsSteps and Description Pictures

=' 0repare the materials and

apparat$s'>' ?$t ; mat boards "or ea!h size

a!!ordin to sizes 9'; !m @

9'; !m and 9A !m @ 9A !m

with a board !$tter'


10/20

Steps and Description Pictures

9' Line the inside o" the small bo@

and lare bo@ with "oil paper$sin polystyrene l$e'

7' Join the !$t 9'; !m @ 9'; !m

and 9A !m @ 9A !m mat boards

to make a bo@ by tapin the

sides $sin a bindin tape';' ?$t $p some poly "oam with

s!issors and st$"" them into the

spa!e between the side walls o"

the small bo@ and lare bo@'

(?$rrently not available%



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' 0repare another 7 mat boards

and !$t them a!!ordin to the

size shown with s!issors'

C' 6old all the "laps a!!ordin to

the dotted lines'

A' Line the inner s$r"a!e o" the

!olle!tors e@!l$de all the "lapswith "oil paper'

D' Join the side "laps o" all mat

boards with bindin tape'


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=' 1rap the whole solar !ooker

with another bier plasti! book wrapper'

=C' #eas$re the initial temperat$re'

=A' &"ter several ho$rs, meas$re

the "inal temperat$re'




14/20

S!ienti"i! heory * &!!$m$lation o" eat6oil paper helps to re"le!t the s$nliht'

#ani"yin lass helps to enhan!e the amo$nt o" s$nliht

and heat'4ravels !an absorb and retain heat'

& plasti! book wrapper !an trap the heat'

he poly "oam helps to ins$late the heat so that it prevents

heat loss'& dark water !ontainer $sed !an et very hot in s$nliht

!ompared to liht s$r"a!es'


15/20

S!ienti"i! ?on!ept &ppli!ationRe"le!tion * &l$mini$m "oil helps to re"le!t the s$nliht to

the water !ontainer'

4reenho$se e""e!t * he plasti! book wrapper !reatesreen ho$se e""e!t by trappin the heat that enters the

solar !ooker'

Re"ra!tion F S$nliht is "o!$sed dire!tly to the side o" the

water !ontainer' 1hen s$nliht travel thro$h a densermani"yin lass medi$m liht ets re"ra!ted and is

"o!$sed more towards the normal'


16/20

Reasons o" ?olo$r ?hosen

Bla!k isG

• 3ark• 3$ll• 4ood heat absorber

• 4ood heat!ond$!tor

-pposed to white,whi!h is''

• Briht• Shiny• 0oor heat absorber

• 0oor heat!ond$!tor


17/20

rial and Error Monday Tursday

/nitial temperat$re : 9°C /nitial temperat$re : 9°C

emperat$re a"ter > ho$r s: ;°C emperat$re a"ter = ho$r : ;';°C

Solar enery absorption:

he res$lt seems to be better on h$rsday !ompared to #onday as

they are some !hanes made to the solar !ooker'

E@ample:a% #ore ravels are p$t to absorb and remain the heat'

b% he ravels had been spray to a darker !olo$r'

!% & lare plasti! book wrapper is $sed to trap the heat'


18/20

?on!l$sionSolar !ooker helps to !onserve "$el'

Solar !ooker re$ires less !ost !ompared to the !ost o"

"$el'

#ankind sho$ld $se solar !ooker in order to !onserve "$el

"or the sake o" the ne@t eneration'


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END O!

PRESENTATION 8ow "or $estion and answer session' (H I & Session%


20/20

THANK "OU !OR

"OUR ATTENTION

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Presentation of Solar Cooker