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Laporan Tray Dryer (Autosaved)
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LABORATORIUM TEKNIK KIMIA SEMESTER GENAP TAHUN AJARAN 2015
MODUL
: Tray Dryer
PEMBIMBING : Emma Hermawat! Ir"! MT Praktikum Penyerahan (Lapran!
: 2+ Maret 2015 : +0 Maret 2015
O#e$ Ke#%m&%'
: (II
Nama
: 1" N)a Mar*ya$ 2".y//e Ra&$ae#a
Ke#a)
1+1,2,011+1,2,02
: 2A Te'/' Te'/' Kma Pr%*') Ber)$
PROGRAM STUDI DIPLOMA IV TEKNIK KIMIA
JURUSAN TEKNIK KIMIA POLITEKNIK NEGERI BANDUNG 2015 BAB I
PENDA"ULUAN #$# Latar Be%akan&
Pe/er Pe/er/a/ /a/ mer&a'a mer&a'a/ / 3aa/ 3aa/ *a#am ra/'aa/ ra/'aa/ %&era) %&era)
&a*a /*)try /*)try &r%)e)" &r%)e)"
Pe/er/a/ Pe/er/a/ a*a#a$ &em)a$a/ )e4m#a$ 'e# ar ata 6at ar #a/ *ar 3a$a/ &a*at )e$/a me/ra/ 'a/*/a/ ))a 6at ar * *a#am 6at &a*at )am&a *e/a/ 3ata) ya/ *a&at *terma" Da#am %&era) &e/er/a/! 6at &a*at ya/ */a'a/ 3)a *a#am 3e/t' )er&$a/! 34734a/! )er3'! Kr)ta#! #em&e/! ata #em3ara/ )/am3/" Dar maam7maam 3e/t' &a*ata/ ya/ a'a/ *'er/'a/ ma'a a#at &e/er//ya a*a *a#am 3er3aa 3e/t' me/ye)a'a/ $a)# &a*ata/ ya/ a'a/ *'er/'a/! a/tara #a/ tray dryer, screen conveyor dryer, tower dryer, rotary dryer, fluidized-bed dryer, flash dryaer, dan spray dryer.
#$' Tuuan
Da&at me/e/a# 'ara'ter)t' &e/er/a/ *e/a/ tray dryer Mam& me/%&era)'a/ a#at &e/er/a/ 4e/) tray dryer )'a#a #a3%rat%rm
BAB II
LANDASAN TEORI '$# Pen&erin&an Pe/er/a/ mer&a'a/ )a#a$ )at /t %&era) e/er &a#/ /te/)8 *a#am &e/%#a$a/
&a)a &a/e/" U/t %&era) / *tera&'a/ *tera &'a/ /t' /t' me/ra/ me/ ra/ 'a*ar ar &r%*' )e&ert 3er3aa 3 er3aa 3a$73a$a/! )ayra/! *a/ &r%*' &erta/a/ #a//ya )ete#a$ &a/e/" Pe/er/a/ a*a#a$ &r%)e) &em/*a$a/ &a/a) *a/ a& ar )eara )m#ta/ ya/ memer#'a/ &a/a) /t' me/a&'a/ ar *ar &erm'aa/ 3a$a/ ta/&a me/3a$ )8at 'ma *ar 3a$a/ ter)e3t" Da)ar *ar *ar &r%)e &r%)e)) &e/e &e/er/ r/a/ a/ a*a#a a*a#a$ $ ter4a ter4a* */y /yaa &e/a &e/a&a &a/ / ar 'e *ara *ara 'are/a 'are/a &er3e &er3e*aa *aa/ / 'a/*/a/ a& ar a/tara *ara *a/ 3a$a/ ya/ *'er/'a/" La4 &em/*a$a/ 'a/*/a/ ar *ar 3a$a/ a'a/ me/a'3at'a/ 3er'ra//ya 'a*ar ar *a#am 3a$a/ ter)e3t" Pe/er/a/ a*a#a$ &em)a$a/ )e4m#a$ 'e# ar *ar )at 3a$a/ )e$/a me/ra/ 'a/*/a/ ))a 6at ar * *a#am 6at &a*at t )am&a )at /#a re/*a$ ya/ *a&at *terma! me//a'a/ &a/a)" Pa*a &r%)e) &e/er/a/ / ar *a&'a/ me//a'a/ *ara t*a' 4e/$ ya/ *$em3)'a/ &a*a 3a$a/ ya/ a'a/ *'er/'a/" Ar 9ata ara/ #a/ me/a& &a*a )$ ya/ #e3$ re/*a$ *ar tt' **$/ya 'are/a a*a/ya &er3e*aa/ 'a/*/a/ a& ar &a*a 3*a/ a/tar7m'a 3a$a/ &a*at7a) *e/a/ *e/ a/ 'a/*/a/ 'a/*/ a/ a& ar a r &a*a 8a)a 8a) a a)" Ga) &a/a) *)e3t me*m &e/er/! me/ye*a'a/ &a/a) ya/ *&er#'a/ /t' &e/a&a/ ar *a/ )e'a#) mem3awa ar 'e#ar" Ar 4a *a&at *&)a$'a/ *ar 3a$a/ &a*at! )eara me'a/' me//a'a/ ara &e/e&re)a/ )e$/a ar 'e#ar! *e/a/ &em)a$ )e/tr8a#! *e/a/ &e/a&a/ terma# ata&/ *e/a/ met%*e #a//ya" Pem)a$a/ ar )eara me'a/' 3a)a/ya #e3$ mra$ 3aya/ya *a/ #e3$ $emat e/er *3a/*/'a/ *e/a/ &e/er/a/" Ka/*/a/ 6at ar *a#am 3a$a/ ya/ *'er/'a/ 3er3e*a *ar )at 3a$a/ 'e 3a$a/ #a/" A*a 3a$a/ ya/ t*a' mem&/ya 'a/*/a/ 6at ar )ama )e'a# 93%/e *ry" Pa*a mm/ya 6at &a*at )e#a# me/a/*/ )e*'t 8ra') ar )e3aa ar ter'at" Ka/*/a/ ar *a#am )at 3a$a/ *a&at */yata'a/ ata) *a)ar 3a)a$ 9; 3erat ata *a)ar 'er/! yat &er3a/*/a/ 4m#a$ ar *e/a/ 4m#a$ 4 m#a$ 3a$a/ 'er/" Da)ar &e/er/a/ a*a#a$ ter4a*/ya &e/a&a/ ar 'e *ara 'are/a &er3e*aa/ 'a/*/a/ a& ar a/tara *ara *e/a/ 3a$a/ ya/ *'er/'a/" *'er/'a/" Da#am $a# /! 'a/*/a/ a& ar *ara #e3$ #e3$ )e*' )e*'tt ata ata *ara *ara mem&/ mem&/ya ya 'e#em 'e#em3a3 3a3a/ a/ /)3 /)3 ya/ ya/ re/*a re/*a$ $ )e$/ )e$/a a ter4a ter4a* * &e/a&a/" Kemam&a/ *ara mem3awa a& ar 3ertam3a$ 3e)ar 4'a &er3e*aa/ a/tara 'e#em3a3a/ /)3 *ara &e/er/ *e/a/ *ara )e'tar 3a$a/ )ema'/ 3e)ar" Sa#a$ )at 8a't%r 8a't%r ya/ mem&er mem&ere&at e&at &r%)e) &r%)e) &e/er &e/er/a/ /a/ a*a#a$ a*a#a$ 'ee&ata 'ee&ata/ / a// a// ata *ara *ara ya/ ya/ me/a#r" me/a#r" U*ara ya/ t*a' me/a#r me/ye3a3'a/ me/ye3a3'a/ 'a/*/a/ a& ar * )e'tar 3a$a/ ya/ *'er/'a/ )ema'/ 4e/$ )e$/a &e/er/a/ )ema'/ #am3at"
T4a/ &e/er/a/ /t' me/ra/ 'a*ar ar 3a$a/ )am&a 3ata) &er'em3a/a/ %ra/)me *a/ 'eata/ e/6m ya/ *a&at me/ye3a3'a/ &em3)'a/ ter$am3at ata 3a'ter ter$e/t )ama )e'a#" De/a/ *em'a/ 3a$a/ ya/ *'er/'a/ mem&/ya wa't )m&a/ #e3$ #ama" Pr%)e) &e/er/a/ *&er%#e$ *e/a/ ara &e/a&a/ ar"
'$' )aktr* )aktr +an& Mempen&aruhi Pen&erin&an
A" La) Perm'aa/ Ma'/ #a) &erm'aa/ 3a$a/ ma'/ e&at 3a$a/ me/4a* 'er/ Ar me/a& me#a# &erm'aa/ 3a$a/! )e*a/'a/ ar ya/ a*a * 3aa/ te/a$ a'a/ merem3e) 'e 3aa/ &erm'aa/ *a/ 'em*a/ me/a&" U/t' mem&ere&at &e/er/a/ mm/ya 3a$a/ &a/a/ ya/ a'a/ *'er/'a/ *&%t%/7&%t%/ ata * r)7r) ter#e3$ *#" Ha# / ter4a* 'are/a: 91 &em%t%/a/ ata &e/r)a/ ter)e3t a'a/ mem&er#a) &erm'aa/ 3a$a/ *a/ &erm'aa/ ya/ #a) *a&at 3er$3/a/ *e/a/ me*m &ema/a)a/ )e$/a ar m*a$ 'e#ar! 92 &%t%/a/7&%t%/a/ 'e# ata #a&)a/ ya/ t&) me/ra/ 4ara' *ma/a &a/a) $ar) 3erera' )am&a 'e &)at 3a$a/ &a/a/" P%t%/a/ 'e# 4a a'a/ me/ra/ 4ara' me#a# ma))a ar *ar &)at 3a$a/ ya/ $ar) 'e#ar 'e &erm'aa/ 3a$a/ *a/ 'em*a/ 'e#ar *ar 3a$a/ ter)e3t"
B" Per3e*aa/ S$ *a/ U*ara Se'tar/ya Sema'/ 3e)ar &er3e*aa/ )$ a/tara me*m &ema/a) *e/a/ 3a$a/ &a/a/ ma'/ e&at &em/*a$a/ &a/a) 'e *a#am 3a$a/ *a/ ma'/ e&at &#a &e/$#a/a/ ar *ar 3a$a/" Ar ya/ 'e#ar *ar 3a$a/ ya/ *'er/'a/ a'a/ me/4e/$'a/ *ara )e$/a 'emam&a//ya /t' me/y/'r'a/ ar 3er'ra/" Ja* *e/a/ )ema'/ t/ )$ &e/er/a/ ma'a &r%)e) &e/er/a/ a'a/ )ema'/ e&at" A'a/ teta& 3#a t*a' )e)a *e/a/ 3a$a/ ya/ *'er/'a/! a'3at/ya a'a/ ter4a* )at &er)twa ya/ *)e3t >
! yat )at 'ea*aa/ *ma/a 3aa/ #ar 3a$a/ )*a$ 'er/ )e*a/'a/ 3aa/ *a#am/ya ma)$ 3a)a$"
<" Kee&ata/ A#ra/ U*ara Ma'/ t/ 'ee&ata/ *ara! ma'/ 3a/ya' &e/$#a/a/ a& ar *ar &erm'aa/ 3a$a/ )e$//a *a&at me/ea$ ter4a*/ya *ara 4e/$ * &erm'aa/ 3a$a/" U*ara ya/ 3erera' *a/ mem&/ya era'a/ ya/ t/ )e#a/ *a&at me/am3# a& ar 4a a'a/ me/$#a/'a/ a& ar ter)e3t *ar &erm'aa/ 3a$a/ &a/a/! )e$/a a'a/ me/ea$ ter4a*/ya atm%)8r 4e/$ ya/ a'a/ mem&er#am3at &e/$#a/a/ ar" A&a3#a a#ra/ *ara *)e'tar tem&at &e/er/a/ 3er4a#a/ *e/a/ 3a'! &r%)e) &e/er/a/ a'a/ )ema'/ e&at! yat )ema'/ m*a$ *a/ )ema'/ e&at a& ar ter3awa *a/ tera&'a/"
D" Te'a/a/ U*ara Sema'/ 'e# te'a/a/ *ara a'a/ )ema'/ 3e)ar 'emam&a/ *ara /t' me/a/'t ar )e#ama &e/er/a/! 'are/a *e/a/ )ema'/ 'e#/ya te'a/a/ 3erart 'era&ata/ *ara ma'/ 3er'ra/ )e$/a a& ar *a&at #e3$ 3a/ya' tetam&/ *a/ *)/'r'a/ *ar 3a$a/ &a/a/" Se3a#'/ya 4'a te'a/a/ *ara )ema'/ 3e)ar ma'a *ara *)e'tar &e/er/a/ a'a/ #em3a3! )e$/a 'emam&a/ me/am&/ a& ar ter3ata) *a/ me/$am3at &r%)e) ata #a4 &e/er/a/"
E" Ke#em3a&a/ U*ara Ma'/ #em3a3 *ara ma'a Ma'/ #ama 'er/ )e*a/'a/ Ma'/ 'er/ *ara ma'a ma'/ e&at &e/er/a/" Kare/a *ara 'er/ *a&at me/a3)%3) *a/ me/a$a/ a& ar Seta& 3a$a/ mem&/ya 'e)em3a/a/ 'e#em3a3a/ /)3 ma)/7ma)/" 'e#em3a3a/ &a*a )$ terte/t *ma/a 3a$a/ t*a' a'a/ 'e$#a/a/ ar 9&/*a$ 'e atm%)8r ata t*a' a'a/ me/am3# a& ar *ar atm%)8r 9S&ry%/%! 200+"
'$, Prin-ip .a-ar .an mekani-me pen&erin&an
Pr%)e) &e/er/a/ &a*a &r/)&/ya me/ya/'t &r%)e) &/*a$ &a/a) *a/ &/*a$ ma))a ya/ ter4a* )eara 3er)amaa/ 9)m#ta/" Pertama &a/a) $ar) * tra/)8er *ar me*m &ema/a) 'e 3a$a/" Se#a/4t/ya )ete#a$ ter4a* &e/a&a/ ar! a& ar ya/ ter3e/t' $ar) *&/*a$'a/ me#a# )tr'tr 3a$a/ 'e me*m )e'tar/ya" Pr%)e) / a'a/ me/ya/'t a#ra/ 8#*a * ma/a ara/ $ar) * tra/)8er me#a# )tr'tr 3a$a/ )e#ama &r%)e) &e/er/a/ 3er#a/)/" Ja* &a/a) $ar) * )e*a'a/ /t' me/a&'a/ ar *a/ ar $ar) me/*8) me#a# 3er3aa maam ta$a/a/ aar )&aya *a&at #e&a) *ar 3a$a/ *a/ 3er3e/t' a& ar ya/ 3e3a)" Lama &r%)e) &e/er/a/ tera/t/ &a*a 3a$a/ ya/ * 'er/'a/ *a/ ara &ema/a)a/ ya/ */a'a/" Ma'/ t/ )$ *a/ 'ee&ata/ a#ra/ *ara &e/er/a/ ma'/ e&at &#a &r%)e) &e/er/a/ 3er#a/)/" Ma'/ t/ )$ *ara &e/er/! ma'/ 3e)ar e/er &a/a) ya/ * 3awa *ara )e$/a ma'/ 3a/ya' 4m#a$ ma))a ara/ ya/ * a&'a/ *ar &erm'aa/ 3a$a/ ya/ *'er/'a/" J'a 'ee&ata/ a#ra/ *ara &e/er/ ma'/ t/ ma'a ma'/ e&at ma))a a& ar ya/ *&/*a$'a/ *ar 3a$a/ 'e atm%)8er" Ke#em3a3a/ *ara 3er&e/ar$ ter$a*a& &r%)e) &em/*a$a/ a& ar" Pa*a 'e#em3a3a/ *ara t/! &er3e*aa/ te'a/a/ a& ar **a#am *a/ *#ar 3a$a/ 'e#! )e$/a &em/*a$a/ a& ar *ar *a#am 3a$a/ 'e#ar me/4a* ter$am3at" Pa*a &e/er/a/ *e/a/ me//a'a/ a#at mm/ya ter*r *ar te/aa &e/era' *a/ '&a)! /t &ema/a) 9heater) )erta a#at7a#at '%/tr%#" Se3aa )m3er te/aa /t' me/a#r'a/ *ara *a&at */a'a/ 3#%wer" Sm3er e/er ya/ *a&at */a'a/ &a*a /t &ema/a) a*a#a$ t/'! a)! m/ya' 3m! *a/ e#eme/ &ema/a) #)tr'" Pr%)e) tama *a#am &e/er/a/ a*a#a$ &r%)e) &e/a&a/ ar ma'a &er# ter#e3$ *a$# *'eta$ 'ara'ter)t' $*rata) 3a$a/ &a/a/ yat )8at7)8at 3a$a/ ya/ me#&t /tera') a/tara 3a$a/ &a/a/ *e/a/ m%#e'# ar ya/ *'a/*//ya *a/ m%#e'# ar * *ara )e'tar/ya" Pera/a/ ar *a#am 3a$a/ &a/a/ */yata'a/ *e/a/ 'a*ar ar *a/ a't=ta) ar! )e*a/'a/ &era/a/ ar * *ara */yata'a/ *e/a/ 'e#em3a3a/ re#at8 *a/ 'e#em3a3a/ mt#a'" Me'a/)me 'e#ar/ya ar *ar *a#am 3a$a/ )e#ama &e/er/a/ a*a#a$ )e3aa 3er't: 1" Ar 3erera' me#a# te'a/a/ 'a&#er" 2" Pe/ar'a/ ar *)e3a3'a/ %#e$ &er3e*aa/ '%/)e/tra) #arta/ *)eta& 3aa/ 3a$a/" +" Pe/ar'a/ ar 'e &erm'aa/ 3a$a/ *)e3a3'a/ %#e$ a3)%r&) *ar #a&)a/7#a&)a/ &erm'aa/ '%m&%/e/ &a*ata/ *ar 3a$a/" ," Per&/*a$a/ ar *ar 3a$a/ 'e *ara *)e3a3'a/ %#e$ &er3e*aa/ te'a/a/ a&" 9Dew! 2010
'$/ Met.e Umum Pen&erin&an
Met%*e *a/ &r%)e) &e/er/a/ *a&at *'#a)8'a)'a/ *a#am 3er3aa ara ya/ 3er3e*a" Pr%)e) &e/er/a/ *a&at *'e#%m&%'''a/ )e3aa: 1" Bat$? 3a$a/ *ma)''a/ 'e *a#am &era#ata/ &e/er/ *a/ &e/er/ 3er#a/)/ )e#ama &er%*e wa't terte/t" 2" K%/t/? 3a$a/ *tam3a$'a/ )eara ter)7me/er) 'e *a#am &e/er/ *a/ 3a$a/ 'er/ *&/*a$'a/ )eara ter)7me/er)" 9Dew! 2010 '$0 1eni-*eni- dryers '$0$# Tray .ryer
Pe/er/ 3a' 9tray dryer *)e3t 4a &e/er/ ra' ata &e/er/ 'a3/et! *a&at */a'a/ /t' me/er/'a/ &a*ata/ 3erm&a# ata &a)ta! ya/ *te3ar'a/ &a*a 3a' #%am *e/a/ 'ete3a#a/ 107100 mm" Pe/er/a/ 4e/) 3a' ata wa*a$ a*a#a$ *e/a/ me#eta''a/ matera# ya/ a'a/ *'er/'a/ &a*a 3a' ya/ #a/)/ 3er$3/a/ *e/a/ me*a &e/er/"
BAB III PER2OBAAN ,$# A%at .an Bahan
Se3aa 3a$a/ ya/ *'er/'a/! *&er)#a$'a/ &ara &ra't'a/ mem#$ )e/*r" •
A%at
A#at tama ya/ *&a'a /t' &ra't'm a*a#a$: 1" Tray *ryer 3e)erta 'e#e/'a&a//ya! )e&ert 3#%wer *a/ tm3a/a/ 2" Term%meter 3%#a 3a)a$ *a/ 'er/ +" Jam *ta# ya/ *a&at *7reset ,$' Pr-e.ur Per34aan ,$'$# Per-iapan
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,$'$' Pen&amatan Berat Kerin&
$imbang sebuah caan pi#ar
)mbil sepotong sampel yang sudah diketahui luasnya, tidak boleh lebih dari 2cm * 2cm. "etakkan sampel diatas aan pi#ar, timbang beratnya.
&anaskan dalam o+en bersuhu 1( sampai tercapai berat konstan, atau aktu pengeringan 2% #am.
-etelah selesai langkah di atas, $imbang berat caan pi#ar berisi sampel kering
,$'$, Start Up
yalakan boer dengan bukaan yang sesuai dengan pemanasan
1.
2.
-et temperatur, kemudian nyalakan pemanas
Peringatan ! Dilarang menyalakan pemanas jika blower tidak hidup ,$'$/ Pen&amatan
atat berat tray yang b erisi bahan setiap 5 menit
,$'$0 Shut D5n
Jika telah teramati berat konstan selama 2 m enit berturut/turut, hentikan pengamatan
1.
• 0atikan pemanas, biarkan bloer tetap hidup setidaknya 5 menit
2.
• "epaskan tray, dan bersihkan
3.
• 0atik an bloe r
BAB IV DATA PRAKTIKUM /$# O4yek Pen&amatan
a" Je/) )am&e# : U3 3" Te3a# r)a/ : + m#meter /$' Varia4e% Opera-i a" Set &%/t tem&eratr &ema/a) : @0 0< 3" Tray ya/ *&a'a : ata) /$, Kn.i-i U.ara Lin&kun&an 0
a" S$ 3%#a 'er/ : 25 3" S$ 3%#a 3a)a$ : 25 " <aa : Se*'t me/*/
0
< <
/$/ Pen&ukuran Berat Kerin& S%i.
a" Berat 3a)a$ )am&e# : 11,!+ 3" Berat 'er/ )am&e# : 2!-
ram ram
/$0 Pen&amatan Berat .a%am Tray Dryer
a" Berat tray '%)%/ : 1-0 ram 3" Berat tray awa# )ete#a$ *) )am&e# : 2,!+ ram Hasil ini dimasukkan ke dalam tabel perkembangan berat total untuk waktu=0 " Pa/4a/ tray : 22 m *" Le3ar tray : 1@ m e" La) Perm'aa/ tray ata) *a/ 3awa$ 9A : 2 922 m 1@ m C 0, m2 8" Per'em3a/a/ 3erat t%ta# )am&e# *a/ tray )e&a/4a/ wa't )e)a ta3e# 3er't
6aktu
0 5 10 15 20 25 +0 +5 ,0 ,5 50 55 @0 @5 0 5 -0 -5
Berat
2,!+ +00!2 2!1 2+!+ 2-!0 2-,! 22!2 21 2-!5 2-!, 2-5!1 2-+!2 2-0!+ 2-!25!, 2+!@ 2@!2@-!@
U.ara Ma-uk Kerin&
Ba-ah
21 22 2+ 2+ 2+ 22 22 22 22 22 22 22 22 22 22 22 22 22
21!5 2, 2@ 2@ 225 25 25 2@ 2@ 2 2 2 2 22 25 2@
Temperatur Se4e%um Tray + + + + + + + + ,0 ,0 + ,0 +,0 + ++ ,0
U.ara Ke%uar Kerin&
Ba-ah
2+ 2, 25 25 2, 25 2, 25 25 25 25 25 25 25 25 25 2, 2,
+ +@ + + +5 +, +2 ++ + ++ ++ ++ ++ ++ +, +5 +2 +0
0 2@!2 21 25 ,0 2, +0 5 2@5!@ 22 25 +25 + 100 2@+!, 22 25 +2@ +5 105 2@1!0 2+ 25 +2@ +5 110 25!2 2, 2@ ,0 2+ 115 25! 2, 2@ + 22 +5 120 25@!2 2@ 2@ ++0 +5 125 25,!5 2@ 2@ +2 +1+0 255!2 2+ +2 +5 1+5 255!0 22 2 ,0 +0 ++ 1,0 25+!0 2 2@ + +1 + 1,5 252!5 2@ 2@ ,0 +0 +150 252!+0 2 ,1 +5 +@ Satuan yan& .ipakai 7 5aktu .a%am menit8 4erat .a%am &ram8 temperatur .a%am 92
BAB V "ASIL DAN PENGOLA"AN DATA 0$# Pem4uatan Gra:ik Berat terha.ap 6aktu
1" Ta3e# $ara 3erat 3er)$ ata 3erat 3a$a/ ya/ *'er/'a/ 9. ter$a*a& wa't 9t" Hara 3erat 3er)$ )ama *e/a/ $ara 3erat t%ta# *'ra/ 3erat tray '%)%/ 6aktu (t!
0 5 10 15 20 25 +0 +5 ,0 ,5 50 55
Berat 4ahan ;
Berat Tray
Tray 2,!+ +00!2 2!1 2+!+ 2-!0 2-,! 22!2 21 2-!5 2-!, 2-5!1 2-+!2
K-n& 1-0
Berat 4er-ih (6!
11,!+ 120!2 11!1 11+!+ 10 10,! 112!2 111 10!5 10!, 105!1 10+!2
@0 @5 0 5 -0 -5 0 5 100 105 110 115 120 125 1+0 1+5 1,0 1,5 150
2-0!+ 2-!25!, 2+!@ 2@!2@-!@ 2@!2 2@5!@ 2@+!, 2@1!0 25!2 25! 25@!2 25,!5 255!255!0 25+!0 252!5 252!-
100!+ -!5!, +!@ -!--!@ -!2 -5!@ -+!, -1 !2 ! @!2 ,!5 5!5 + 2!5 2!-
2" Gra8' $ara 3erat 3er)$ 3a$a/ ya/ *'er/'a/ ter$a*a& wa't &e/er/a/ 13 12 11 1 Berat bersih (W)
' 1
3 2
5 %
'
11 13 15 1 12 1% 1'
Waktu Pengeringan (t)
0$' Perhitun&an Berat Kerin& Bahan
1" Data 3erat 3a)a$ )am&e# )e3e#m *&a/a)'a/ *a#am %=e/ *a/ )ete#a$ *&a/a)'a/ *a#am %=e/! )erta 3erat 3er)$ 3a$a/ *a#am tray &a*a wa't tC0 Berat 3a)a$ )am&e# )e3e#m * %=e/ C 1!, ram • Berat )am&e# )ete#a$ * %=e/ C 0!5@ ram • Berat 3er)$ 3a$a/ *a#am tray tC0 C 11,!+ ram • 2" Berat 'er/ 3a$a/ */yata'a/ *e/a/ &er)amaa/ :
Ls =
Berat sampelkering × ( Berat bahandi tray padat =0 ) Berat sampelbasah
Ls =45,72 g Dengan Ls =berat kering baha / * tray
0$, Pem4uatan Gra:ik Ka.ar Air terha.ap 6aktu 1" Ta3e# $ara 'a*ar ar 9 3a$a/ ter$a*a& wa't 9t" Hara 'a*ar ar *ar *e/a/ &er)amaa/: Berat bersih bahanaltray − Ls X = Ls Berat 4er-ih 4ahan a% tray 11,!+ 120!2 11!1 11+!+ 10 10,! 112!2 111 10!5 10!, 105!1 10+!2 100!+ -!5!, +!@ -!--!@ -!2 -5!@ -+!, -1 !2 ! @!2 ,!5 5!5 + 2!5 2!-
L-
< (Ka.ar air!
6aktu (t!
,5!2
1!5 1!@20 1!@0, 1!,-1 1!+-,0 1!2 1!,5,0 1!,21!+50 1!+,0 1!2- 1!252 1!1+ 1!1@0 1!0-@@ 1!0,2 0!@@+ 0!+0!02 0!-22 0!-2,1 0!1@ 0!-+ 0!@, 0!@@@ 0!@2, 0!@5 0!@,0, 0!5@@ 0!5-5 0!52+
0 5 10 15 20 25 +0 +5 ,0 ,5 50 55 @0 @5 0 5 -0 -5 0 5 100 105 110 115 120 125 1+0 1+5 1,0 1,5 150
2" Gra8' $ara ter$a*a& t" 1. 1.' 1.% 1.2 1 Kadar Air (X)
.
.'3
.'
.5
.% .2
2
%
'
1
12
1%
1'
Waktu (t)
0$/ Penentuan Peri.e Lau Kn-tan Da#am #a/'a$ /! 4'a teramat a*a ra) ar) * 'r=a =) t ya/ me//*'a)'a/
a*a/ya ta$a& a*a&ta)! ter#e3$ *a$# a3a'a/ *ata * ra) t" 1" Dar ra8' =) t! teramat )eara =)a# a*a/ya ar) #r) ya/ ter3e/t'"
2" Mem)a$'a/ *ata ya/ mem3e/t' ar) #r)! *a/ mem3at ra8' =) t )e/*r *e/a/ &r%ram Ee# Ka.ar air (
6aktu (t! 125 1+0 1+5 1,0 1,5 150
Grafk X Vs t 1.% 1.2 1 . Kadar Air (X) .'
4(*! / * 6 .
.% .2 12
13
1%
15
1'
waktu (t)
+" Per)amaa/ ar) ya/ **a&at &a*a ra8' * ata)" C 70!0025 F 0!@,
C 70!0025 t F 0!@,
dx ," Me/r/'a/ &er)amaa/ * ata)! )e$/a **a&at dt )e3aa )e3a$ '%/)ta/ta C 70!0025 t F 0!@, dx =−0,0025 dt
5" Me/ar #a4 &e/er/a/ '%/)ta/ *e/a/ &r/)& : − Ls dx Rc= . linier A dt
( )
−4
Rc= 1,625 × 10
g
=1,625 2
cm
g 2
m
/$0 Penentuan Titik Ke-etim4an&an 1" Tt'7tt' ya/ mem3at $ara '%/)ta/ ata 3er3a$ t*a' )/8'a/ *a#am ra8'
ra8' =) t" Ka.ar Air (
6aktu (t! 125 1+0 1+5 1,0
0!5-5 0!52+ 98=#>9
1,5 150 Rata*rata
2" Mem3at $ara rata7rata ata) tt'7tt' ya/ $am&r )ama )e3aa $ara 9 'e)etm3a/a/ Pa*a ta3e# * ata) rata7rata tt' ya/ **a&at a*a#a$ C 0!@10! ma'a /#a @ 98=#>9 /$= Pem4uatan Gra:ik R - < 1" Mem3at ar) *atar * ra) La4 Pe/er/a/ K%/)ta/ *e/a/ me/a#r'a/ R
ter$a*a& m#a awa# )am&a $ara tera'$r ya/ mem3at ar) #/er * 'r=a =) t *a#am ra8' )e3e#m/ya" tera'$r / **e'#ara)'a/ )e3aa " Ka*ar Ar 9 0!@2, 0!@5 0!@,0, 0!5@@ 0!5-5 980',
La4 Pe/er/a/ K%/)ta/ 9R
1!@25 m2
<3
Grafk Rc Vs X 1. 1.5 1. Laju Pengeringan Konstan (Rc)
1.'5 1.' 1.55 1.5 .5
.'
.'2 .'% .'' .'
Kadar Air (X)
2" Mem%t'a/ $ara C *e/a/ RC0 )e$/a mem3e/t' tt' 9!0 C 0!@10 ? RC0 90!@10 ? 0
1. 1.' 1.% 1.2 1 Laju Pengeringan Konstan (Rc) . .' .% .2 .5
.'
.'2
.'%
.''
.'
Kadar Air (X)
+" Me/$3/'a/ 9!R *e/a/ 9!0 9!R 90!52+ ? 1!@25 9!0 90!@10 ? 0
1. 1.' 1.% 1.2 1 Laju Pengeringan Konstan (Rc)
. .' .% .2 .5
.'
.'2
.'%
Kadar Air (X)
.''
.'
," De/a/ ter3e/t'/ya ar) *atar! ar) mr/! )erta tt' 9!0 ma'a 'r=a 'ara'ter)t' &e/er/a/ te#a$ #e/'a&" De/a/ m*a$ *a&at *#$at + $ara 'ara'ter)t' &e/er/a/! yat ! R! )erta
BAB VI PEMBA"ASAN
Pa*a &ra't'm / *#a''a/ %&era) &e/er/a/ )at 3a$a/ *e/a/ met%*e &e/er/a/ )eara a*a3at yat *e/a/ me//a'a/ tray *ryer" Ba$a/ ya/ */a'a/ *a#am %&era) &e/er/a/ *e/a/ tray *rayer a*a#a$ 3" T4a/ *ar &ra't'm / a*a#a$ *a&at me/e/a# 'ara'ter)t' &e/er/a/ *e/a/ tray *ryer *a/ Mam& me/%&era)'a/ a#at &e/er/a/ 4e/) tray *ryer )'a#a #a3%rat%rm"
Tray *ryer a*a#a$ )a#a$ )at a#at &e/er/ ya/ 3er%&era) )eara a*a3at" Pe/er/a/ a*a3at' a*a#a$ &e/er/a/ *ma/a &a/a) *3awa 'e a#at &e/er/ %#e$ *ara &a/a)" U*ara &a/a) / a'a/ mem3er'a/ &a/a) &a*a 3a$a/ &a/a/ ya/ a'a/ *'er/'a/ *a/ me/a/'t a& ar ya/ *'e#ar'a/ %#e$ 3a$a/" Ba$a/ ya/ a'a/ *'er/'a/ *)m&a/ *a#am tray *a/ *'%/ta''a/ )eara #a/)/ *e/a/ *ara &a/a)" K%m&%/e/ tama *ar tray *ryer a*a#a$ tray! 3#%wer! $eater! *a/ tm3a/a/"
Se3e#m %&era) &e/er/a/! 3a$a/ ya/ a'a/ *'er/a/ $ar) *a#am 3e/t' #em3ara/7#em3ara/ 'e#" O#e$ 'are/a t 3 ya/ */a'a/ *&%t%/7&%t%/ 3e/t' &er)e )e'tar ,m2 *e/a/ 'ete3a#a/ + mm" Ma')* &em%t%/a/ me/4a* #em3ara/ a*a#a$ aar #a4 &e/a&a/ 'a/*/a/ ar *a&at 3er#a/)/ merata *a#am tray" &em%t%/a/ ata &e/r)a/ ter)e3t a'a/ mem&er#a) &erm'aa/ 3a$a/ *a/ &erm'aa/ ya/ #a) *a&at 3er$3/a/ *e/a/ me*m &ema/a)a/ )e$/a ar m*a$ 'e#ar" P%t%/a/7&%t%/a/ 'e# ata #a&)a/ ya/ t&) me/ra/ 4ara' *ma/a &a/a) $ar) 3erera' )am&a 'e &)at 3a$a/ &a/a/" P%t%/a/ 'e# 4a a'a/ me/ra/ 4ara' me#a# ma))a ar *ar &)at 3a$a/ ya/ $ar) 'e#ar 'e &erm'aa/ 3a$a/ *a/ 'em*a/ 'e#ar *ar 3a$a/ ter)e3t
Pr/)& 'er4a tray *ryer a*a#a$ *ara &a/a) *ar ra/ &ema/a) *e/a/ 3a/ta/ 3#%wer a'a/ 3erera' me/4 tray #a# me/a#r me#ewat 3a$a/ ya/ *'er/'a/ *a/ me#e&a)'a/ )e3aa/ &a/a)/ya )e$/a ter4a* &r%)e) &e/a&a/ ar *ar 3a$a/" Per&/*a$a/ ma))a *a#am &ra't'm &e/er/a/ *e/a/ tray *ryer / a*a#a$ 'et'a ter4a* &e/r/a/ ma))a 3 )e3e#m &e/er/a/ *a/ )e)*a$ &e/er/a/" Pr%)e) &er&/*a$a/ ma))a 'a/*/a/ ar *ar 3a$a/ 'e *ara ter4a* 'et'a ter*a&at &er3e*aa/ '%/*) &erm'aa/ &a*ata/ *e/a/ 8a)a ra$! *ma/a &a*ata/ ya/ mem#' '%/)e/tra) #e3$ t/ *ar 8a)a ra$ me/ye3a3'a/ ter4a*/ya &er&/*a$a/ ma))a" Da#am &ra't'm / wa't %&era) &e/er/a/ 3er4a#a/ )e#ama 150 me/t *e/a/ tem&eratre &ema/a) *)et
@0<" Dar ra8' **a&at &e/r/a/ ma))a 3 *a#am tray
3er3a*/ #r) *e/a/ #ama/ya wa't &e/er/a/" Berat 3er)$ 3 )e3e#m *'er/'a/ *a/ )ete#a$ *'er/'a/ *a#am tray a*a#a$ ma)/7ma)/ 11,!+ ram *a/ 2!- ram" Ka/*/a/ ar ya/ me/a& *a&at *3't'a/ *e/a/ &e/r/a/ 3erat 3er)$ 3 )e3a/ya' +@; *ar 3erat awa#" Ka*ar ar *a#am 3a$a/9 a*a#a$ 3erat 3er)$ 3a$a/ a# tray73erat 'er/ 3a$a/ 9L) *3a L)" Dar ra8' **a&at 'a*ar ar 3 me/r/ 3er3a/*/ #r) *e/a/ wa't %&era) &e/er/a/" Ka*ar ar awa# *ar 3 a*a#a$ 1!5 *a/ 'a*ar ar a'$r 0!52+" Nam/ &e/r/a/ 'a*ar ar *ar tC0 me/t $/a tC150 me/t! ter*a&at &er%*e #a4 '%/)ta/ 'a*ar ar yat *ar tC125 me/t $/a tC150 me/t" Dar &er%*e '%/)ta/ / )e#a/4t/ya *3at ra8' 'a*ar ar 9 ter$a*a& wa't &ema/a)a/ #a# **a&at &er)amaa/ ar) #r) C 70!0025 t F 0!@," a/ art/ya 'a*ar ar a'a/ me/r/ )e3e)ar 70!0025 t" &e/r/a/
&er)amaa/ *ata) me/4a*
dx =−0,0025 dt
/t' mem&er%#e$ /#a La4 &e/er/a/
g '%/)ta/ 9R ya/ *a#am &ra't'm / *&er%#e$ )e3e)ar 1!@25
2
m
"
Ka*ar ar 'e)etm3a/a/ a*a#a$ rata7rata 'a*ar ar &a*a &er%*e wa't '%/)ta/! **a&at 'a*ar ar 'e)etm3a/a/ 9 0!@10 *a/ 'a*ar ar a'$r 9 0!52+ *a/ % )e3e)ar 0"52+" % &ra't'm #e3$ 3e)ar *ar&a*a )e3e)ar 0!@10 ya/ art/ya &r%)e) &er&/*a$a/ ma))a ar *ar *a#am 3 'e *ara *e/a/ 3a/ta/ *ara &a/a) 3er#a/)/ )e3aama/a me)t/ya" Nam/ a&a3#a /#a % #e3$ 'e# *ar&a*a &r%)e) &e/er/a/ t*a' a'a/ ter4a*! ya/ ter4a* a*a#a$ &r%)e) a*)%r&) ar )am&a % me/*e'at /#a " Kara'ter)t' &e/er/a/ ter*r *ar ta a)&e' yat 'a*ar ar a'$r 9! La4 &e/er/a/ '%/)ta/ 9R *a/ 'a*ar ar 'e)etm3a/a/ 9" Da#am &ra't'm / **a&at /#a ! R! *a/ ma)/7ma)/ )e3e)ar 0!52+? 1!@25 m2? *a/ 0!@10"
Da#am %&era) &e/er/a/ *e/a/ tray *ryer ter*a&at 3e3era&a $a# ya/ mem&e/ar$ yat La) &erm'aa/! &er3e*aa/ )$ *a/ *ara )e'tar! 'ee&ata/ a#ra/ *ara! te'a/a/ *ara! *a/ Ke#em3a&a/ *ara" Seara te%rt) )ema'/ 3e)ar #a) &erm'aa/ ma'a #a4 &e/er/a/ a'a/ )ema'/ e&at %#e$ 'are/a t 3a$a/ ya/ *'er/'a/ $ar) *&%t%/ *a/ *r) t&) me/4a* #em3ara/" La# )ema'/ 3e)ar &er3e*aa/ )$ a/tara me*m &ema/a) *e/a/ 3a$a/ &a/a/ ma'a &e/a&a/ ar *a#am 3a$a/ a'a/ #e3$ e&at" Ber*a)ar'a/ &ra't'm **a&at &er3e*aa/ )$ a/tara *ara ma)' *a/ *ara 'e#ar )ema'/ 3e)ar )er/ *e/a/ #ama/ya wa't &e/er/a/" Nam/ 'a*a/'a#a &er3a$a/ )$ ya/ t*a '%/)ta/ me/ye3a3'a/ #ama/ya &e/er/a/ mema'a/ wa't $/a 150 me/t" Ha# / *a&at *$/*ar a&a3#a &er3e*aa/ )$ a/tara *ara ma)' *a/ 'e#ar '%/)ta/ )e$//a *ara )e3e#m tray a'a/ )ema'/ &a/a) )er/ wa't &e/er/a/ *a/ a'$r/ya &e/er/a/ 3a$a/ *a&at 3er#a/)/ #e3$ e&at" Kee&ata/ a#ra/ *ara 4a mme/ar$ &e/er/a/ )at 3a$a/! )ema'/ e&at a#ra/ *ara ma'a wa't &e/er/a/ a'a/ #e3$ e&at" Nam/ 8a't%r ter)e3t t*a' *amat 'et'a &ra't'm 'are/a t*a' ter)e*a
a/em%meter /t'
me#$at #a4 'ee&ata/ a#ra/ a*ara" Ke#em3a3a/ *ara 4a a*a#a$ 8a't%r ya/ mem3at wa't &e/er/a/ a'a/ )ema'/ e&at a&a3#a 'e#em3a&a/ *ara '& 'e#" U/t' me#$at
8a't%r 'e#em3a&a/ *ara *a&at *amat *ar 'ea*aa/ aa! )eara t*a' #a/) )aat &ra't'm a=a )e*'t me/*/ ya/ 3er'ata/ *e/a/ t//ya 'e#em3a&a/ *ara" Se$/a *ar 8a't%r78a't%r ya/ )*a$ *)e3t'a/ *ata) trt mem/ear$ $a)# *ar &ra't'm &e/er/a/ /"
Ke)m&#a/ ya/ **a&at *ar &ra't'm tray *ryer a*a#a$ 3 ya/ *'er/'a/ mem#' 'a*ar ar awa# 9% 1!5!
'a*ar ar a'$r 9 )e3e)ar 0!52+! 'a*ar ar
'e)etm3a/a/ 9 )e3e)ar 0!@10! *a/ #a4 &e/er/a/ '%/)ta/ 9R 1!@25 m2 "
BAB VII SIMPULAN DAN SARAN
"1 Sm&#a/ Sm&#a/ ya/ **a&at *ar &ra't'm tra *ryer a*a#a$ : •
Tray *ryer a*a#a$ &e/er/ 3a$a/ &a/aa/ ya/ 3e'er4a )eara 3at$" Ba$a/ &a/a/ ya/ *'er/'a/ *)m&a/ *a#am wa't terte/t *a/ *'%/ta''a/ #a/)/ *e/a/ *ara &a/a)" Se$/a me'a/)me &e/er/a/ *e/a/ tray *ryer a*a#a$ &ema/a)a/ a*a3at"
•
Pr/)& 'er4a &e/er/a/ *e/a/ tray *ryer a*a#a$ *ara &a/a) *ar ra/ &ema/a) *e/a/ 3a/ta/ 3#%wer a'a/ 3erera' me/4 tray #a# me/a#r me#ewat 3a$a/ ya/ *'er/'a/ *a/ me#e&a)'a/ )e3aa/ &a/a)/ya
•
)e$/a ter4a* &r%)e) &e/a&a/ ar *ar 3a$a/" Kara'ter)t' &e/er/a/ ya/ **a&at *ar &ra't'm tray *ryer a*a#a$ 3 ya/ *'er/'a/ mem#' 'a*ar ar awa# 9% 1!5!
'a*ar ar a'$r 9
)e3e)ar 0!52+! 'a*ar ar 'e)etm3a/a/ 9 )e3e)ar 0!@10! *a/ #a4 &e/er/a/ '%/)ta/ 9R 1!@25 m2 " "2 Sara/ •
&e/er/a/ *e/a/ tray *ryer $a/ya 3)a *#a''a/ a&a3#a 3a$a/ ya/ a'a/ *'er/'a/ 3er3e/t' #em3ara/ t&)" Be/t' #em3ara/ ya/ t&) mem3at #a) &erm'aa/ '%/ta' a/tara 3a$a/ *a/ *ara &a/a) )ema'/ 3e)ar )e$/a &e/a&a/ a'a/ 3er#a/)/ #e3$ e&at" O#e$ 'are/a t 'ete3a#a/ 3
•
)e3a'/ya t*a' #e3$ 3e)ar *ar&a*a +mm" S&aya &e/er/a/ 3er#a/)/ #e3$ e&at )$ &ema/a) $ar) *atr aar )ta3# *a/ &er3e*aa/ )$ )e3e#m ma)' *a/ 'e#ar tray 3er)e#)$ 3e)ar!
•
)e$/a wa't &e/er/a/ a'a/ #e3$ e&at S&aya &e/er/a/ *a&at 3er#a/)/ #e3$ ma')ma#! #a4 *ara $ar) 3e)ar" Nam/ 8a't%r ter)e3t t*a' *a&at *amat 'are/a t*a' ter)e*a a/em%meter" Se3a'/ya *)e*a'a/ a/em%meter /t' me/eta$ #a4 *ara )aat &e/er/a/ 3er#a/)/"
DA)TAR PUSTAKA
a#a)a$! M%$amma*a Ar *a/M't! .3awa" 1" Rancang Bangun Pengering Talam untu !ranul "P#. Ba/*/: Jr)a/ Te'/' Kma POLBAN" Gea/'%)! J" <$r)te" 1+"Transport Process and $nit %peration & rd 'dition(. New Jer)ey: U/=er)ty %8 M//e)%ta M
R8a/*! A$ma*" 2005" Peralatan ndustri Proses. Ba/*/: P%#te'/' Neer Ba/*/" S$e8#er! .##am <" 1-" /tatisa untu Biologi, 0armasi, #edoteran, dan ilmu yang Bertautan. Ba/*/: I/)ttt Te'/%#% Ba/*/"
LAMPIRAN #$ Perhitun&an 4erat kerin& 4ahan .i tray (L-!
Ls =
Berat sampelkering × ( Berat bahandi tray padat =0 ) Berat sampelbasah
Ls =
0,56 g 1,4 g
× 114,3 g
Ls =0,4 × 114,3 g Ls =45,72 g Dengan Ls =berat kering baha / * tray
'$ Perhitun&an ka.ar air (
.a't 9t C 0 m/t 114,3 g −45,72 g X = 45,72 g X =
68,58 g 45,72 g
X =1,5
•
.a't 9t C 5 m/t 120,2 g − 45,72 g X = 45,72 g X =
74,48 g 45,72 g
X =1,6290
•
.a't 9t C 10 m/t 119,1 g −45,72 g X = 45,72 g X =
73,38 g 45,72 g
X =1,6049
•
.a't 9t C 15 m/t 113,3 g −45,72 g X = 45,72 g X =
67,58 g 45,72 g
X =1,4781
•
.a't 9t C 20 m/t 109,0 g− 45,72 g X = 45,72 g X =
63,28 g 45,72 g
X =1,3840
•
.a't 9t C 25 m/t 104,7 g −45,72 g X = 45,72 g X =
58,98 g 45,72 g
X =1,29
•
.a't 9t C +0 m/t 112,2 g −45,72 g X = 45,72 g X =
66,48 g 45,72 g
X =1,4540
•
.a't 9t C +5 m/t 111 g − 45,72 g X = 45,72 g X =
65,28 g 45,72 g
X =1,4278
•
.a't 9t C ,0 m/t 109,5 g− 45,72 g X = 45,72 g X =
63,78 g 45,72 g
X =1,3950
•
.a't 9t C ,5 m/t 107,4 g −45,72 g X = 45,72 g X =
61,68 g 45,72 g
X =1,3490
•
.a't 9t C 50 m/t 105,1 g − 45,72 g X = 45,72 g X =
59,38 g 45,72 g
X =1,2987
•
.a't 9t C 55 m/t 103,2 g − 45,72 g X = 45,72 g X =
57,48 g 45,72 g
X =1,2572
•
.a't 9t C @0 m/t 100,3 g− 45,72 g X = 45,72 g X =
54,58 g 45,72 g
X =1,1937
•
.a't 9t C @5 m/t 98,8 g −45,72 g X = 45,72 g X =
53,08 g 45,72 g
X =1,1609
•
.a't 9t C 0 m/t 95,4 g − 45,72 g X = 45,72 g X =
49,68 g 45,72 g
X =1,0866
•
.a't 9t C 5 m/t
X = X =
93,6 g −45,72 g 45,72 g 47,88 g 45,72 g
X =1,0472
•
.a't 9t C -0 m/t 89,8 g −45,72 g X = 45,72 g X =
44,18 g 45,72 g
X =0,9663
•
.a't 9t C -5 m/t 88,6 g −45,72 g X = 45,72 g X =
42,88 g 45,72 g
X =0,9378
•
.a't 9t C 0 m/t 87,2 g− 45,72 g X = 45,72 g X =
41,48 g 45,72 g
X =0,9072 •
.a't 9t C 5 m/t 85,6 g −45,72 g X = 45,72 g X =
39,88 g 45,72 g
X =0,8722
•
.a't 9t C 100 m/t 83,4 g −45,72 g X = 45,72 g
X =
37,68 g 45,72 g
X =0,8241
•
.a't 9t C 105 m/t 81 g− 45,72 g X = 45,72 g X =
35,28 g 45,72 g
X =0,7716
•
.a't 9t C 110 m/t 79,2 g − 45,72 g X = 45,72 g X =
33,48 g 45,72 g
X =0,7837
•
.a't 9t C 115 m/t 77,7 g −45,72 g X = 45,72 g X =
31,98 g 45,72 g
X =0,6994
•
.a't 9t C 120 m/t 76,2 g − 45,72 g X = 45,72 g X =
30,48 g 45,72 g
X =0,6667
•
.a't 9t C 125 m/t 74,5 g− 45,72 g X = 45,72 g X =
28,78 g 45,72 g
X =0,6294
•
.a't 9t C 1+0 m/t 75,8 g− 45,72 g X = 45,72 g X =
30,08 g 45,72 g
X =0,6579
•
.a't 9t C 1+5 m/t 75 g− 45,72 g X = 45,72 g X =
29,28 g 45,72 g
X =0,6404
•
.a't 9t C 1,0 m/t 73 g− 45,72 g X = 45,72 g X =
27,28 g 45,72 g
X =0,5966
•
.a't 9t C 1,5 m/t 72,5 g− 45,72 g X = 45,72 g X =
26,78 g 45,72 g
X =0,5857
•
.a't 9t C 150 m/t 72,8 g− 45,72 g X = 45,72 g X =
27,08 g 45,72 g
X =0,5923
,$ Perhitun&an penurunan per-amaan &ra:ik8 -ehin&&a .i.apat
dx dt -e4a&ai
-e4uah kn-tanta C 70!0025 t F 0!@, dx d (−0,0025 t + 1,7632 ) = dt dt
dx d (−0,0025 t ) d ( 1,7632 ) = + dt dt dt dx =−0,0025 +0 dt dx =−0,0025 dt
/$ Perhitun&an men3ari %au pen&erin&an kn-tan .en&an prin-ip 7 − Ls dx Rc= . linier A dt
( )
D' : L) C ,5!2 A C 0, m2 dx =−0,0025 dt Dt : R Jawa3 : Rc=
−45,72 g 704 cm
2
. (−0,0025 )
Rc=−0,065 g / cm × (−0,0025 ) 2
−4
Rc= 1,625 × 10 g / cm Rc= 1,625 g / m
2
2
0$ Dkumenta-i -e%ama praktikum Gam4ar
Keteran&an
U3 3a)a$ ya/ a'a/ *'er/'a/ * *a#am %=e/"
U3 ya/ )e*a/ *'er/'a/ * tray
U3 ya/ )e*a/ *'er/'a/ * tray tam&a' *ar 3aa/ *ara 'e#ar
B#%wer )e3aa *ara ma)'
S$ )et &a*a @00<
Term%meter /t' me/'r )$ )e3e#m tray
Tm3a/a/ /t' me/'r 3erat tray F 3
Term%meter 3a)a$ *a/ 'er/ /t' me/'r )$ 3a)a$ *a/ 'er/ &a*a *ara ma)' *a/ 'e#ar"
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