ppt praktikum 2

8/19/2019 ppt praktikum 2

1/15

Laporan Praktikum

Pengkondisian Udara(AHU)


2/15

KELOMPOK 1

M. BINTANG FIKRI 2111100087

WAHYU PRIATNA 2113106006

RAE ARUN SUGARA 2113106041

KHOIRUL ANWAR 2113106046


3/15

Ske! Pe"!#!$!%


4/15

P"&'e' Pe"(&)!!%

1. Pe"(&)!!% *+#!k,k!% *e%-!% e!"+!'+k!%),k!!% damper /!*! /&'+'+

• F,## &/e%

• H!# &/e%• F,## (#&'e*

2. Be)!% /e%*+%-+%!% !%- *+-,%!k!% !*!#! pre-

heater *!% re-heater 0. *!% 1.0 kW.


5/15

Prosedur Pengambilan Data

(Pre-heater 0.5 dan 1.5 k )

1. !"alakan sistem hingga keadaan sistem steady .

#. $atat temperature 1 s%d 1& dimana temperatur tersebut menun'ukkan temperatur

1. Temperature dry bulb intake air.

#. Temperature wet bulb intake air.

&. Temperature dry bulb after mixing.

. Temperature wet bulb after mixing.

5. Temperature dry bulb after per-heating.

*. Temperature wet bulb after per-heating.+. Temperature dry bulb after cooling.

,. Temperature wet bulb after cooling.

. Temperature dry bulb after re-heating.

10. Temperature wet bulb after re-heating.

11. Temperature before expansion valve.

1#. Temperature after expansion valve.

1&. Temperature leaving evaporator.

&. $atat Condenser Pressure.

. $atat Evaporator Pressure.

5. $atat Intake rifice differential.

*. $atat In !uct rifice differential.


6/15

(ontinued)

+. $atat "oltage.

,. $atat Pre-heater Current (0.5 atau 1.0 k).

. $atat Compressor Current.

10. $atat #an Current.

11. $atat Condensate Temperature.

1#. $atat Condensate $ate.


7/15

HASIL PER5OBAAN


8/15

ATA YANG IAMBIL

/ukaan Damper A (ntake) / (Ater 2i3ing) $ (Ater Pre-heating) D (Ater $ooling) 4 (Ater e-heating)

6db 67b 6db 67b 6db 67b 6db 67b 6db 67b

8ull" 9pen #0 1 1. 1.& # 1*., 1., 10 #&.# 1.&

Hal 9pen #1.& 1.& #1.1 1.+ &0.+ 1*., 15.& 10 #&., 1.&

8ull" $losed #1.1 1.5 #&. 1.+ .# 1+ 1*.& 10.* #., 1.+

6emperature beore e3p. :al;e

6emperature ater e3p.:al;e

6emperature Lea;inge;aporator

Pressure$ondenser

Pressure4;aporator

9riie Dierential(intake)

9riie Dierential(in dut)

.* -*.& +., #0 1100 5.# #.

.* -*.5 ,.1 #50 11#5 5.# #.

&&.* -5 ,.5 #5 1150 5.# #.

1.0 k

/ukaan Damper

$ompartement

: Pre-heater e-heater $ompressor 8an

8ull" 9pen #0 . . 5. 0.,5

Hal 9pen #0* . . 5. 0.,

8ull" $losed #0 . . 5.5 0.+

/ukaanDamper

$ondensate

6emperature ate (ml)

8ull" 9pen #* 10

Hal 9pen #+ 0

8ull" $losed #* *0


9/15

/ukaan Damper A (ntake) / (Ater 2i3ing) $ (Ater Pre-heating) D (Ater $ooling) 4 (Ater e-heating)

6db 67b 6db 67b 6db 67b 6db 67b 6db 67b

8ull" 9pen 1+. 1#.1 1,.# 1#.5 ##.* 1.# 11.5 1*.1 11.#

Hal 9pen #0 1&.+ 1,.5 1#., ##.* 1&., 11. 1*.5 11.1

8ull" $losed 1 11.# 15. ., ##.+ 1&.* 11 ,.* 1*

6emperature beore e3p. :al;e

6emperature ater e3p.:al;e

6emperature Lea;inge;aporator

Pressure$ondenser

Pressure4;aporator

9riie Dierential(intake)

9riie Dierential(in dut)

#., -10. .& 1,0 10#5 5.# #.&

&0.5 -10.+ +.* 10 1050 5.# #.&

#,.5 -1# &.# 150 1000 5.# #.&

0.5 k

/ukaan Damper $ompartement

: Pre-heater e-heater $ompressor 8an

8ull" 9pen ##0 # # 5 0.,

Hal 9pen ##0 # # 5 0.+

8ull" $losed ##0 # # . 0.+

/ukaanDamper

$ondensate

6emperature ate (ml)

8ull" 9pen #* #00

Hal 9pen #* 1&0

8ull" $losed #* 0


10/15

5ONTOH PERHITUNGAN

P!*! (&%$& /e"+$,%-!% +%+ k!+ e%--,%!k!%

/e"+$,%-!% /!*! ),k!!% *!/e" fully closed

/ukaan Damper :b < mdot / h$ h/=dot

Preheater(eletial)

=dotPreheater

(mehanial)>=

8ull" $losed 1.0k 0.,5 5.# 1.,+#&55# +.&,* 0.*# 0. 1#.0#,0055, 11.5,,0055,

8ull" $losed 0.5 k 0.,# 5.# 1.01**+0& #.1# #,.+1+ 0. 0.+**&+0,+5 0.*&+0,+5

• PERHITUNGAN P"e9He!$e"

/ukaan Damper : $D < mdot A h$ hD 7$ 7D mdot7 h7 h >H (k)

8ull" $losed 1.0k 0.,5 5.# 0.1,+ +.&,* &0.5,& 0.00* 0.00* 0.0000,+ 10.0+0 10.0+0 &.151

8ull" $losed 0.5 k 0.,1* 5.# 0.11 &,.01# #*.050 0.00* 0.00* 0.0000#,+ 10.0+0 10.0+0 #.#,

• PERHITUNGAN U*!"! E!/&"!$&"


11/15

PERHITUNGAN Re"+-e"!%$ E!/&"!$&"

/ukaan Damper h11 h1# h1&mdot

rerigerant(kg%s)

=e;aporator

8ull" $losed 1.0k 5.,50 5.,50 #.&10 0.01 #.0*#

8ull" $losed 0.5 k ,.&&0 ,.&&0 #0.150 0.01 #.05

• PERHITUNGAN Oe"!## 5OP

/ukaan Damper =e;aporator P $9P

8ull" $losed 1.0k #.0*1 1.0011* #.05555&*

8ull" $losed 0.5 k #.0+##### 0. #.115,,10&&

• PERHITUNGAN : Re9He!$+%- ; P&


12/15

G"!=k $e"!*!/ ),k!!%Damper

0. 2.28>

1 3.11

0.000

0.500

1.000

1.500

#.000

#.500

&.000

&.500

).000

F,## O/e% H!# O/e% F,## 5#&'e*

k W

ΔQ udara evaporator


13/15

0.47 2.0>417 2.062

1.-50

#.000

#.050

#.100

#.150

#.#00

#.#50

F,##O/e% H!# O/e% F,##5#&'e*

k W

Q Refrigerant Evaporator

G"!=k E!/&"!$&" Te"!*!/B,k!!% Damper


14/15

G"!=k Oe"!## 5OP Te"!*!/ B,k!!% Damper

0.47 2.116

172.060

1.-50

#.000

#.050

#.100

#.150

#.#00

#.#50

#.&00

F,## O/e% H!# O/e% F,## 5#&'e*

Overall COP


15/15

G"!=k Re9He!$e" ; F!% P&

ppt praktikum 2

Documents