Đồ án Kỹ Thuật Lạnh GVHD : Nguyễn ThànhVăn
!"#$%$&'(!")*!
+,-.!"'/!"0(
123/!"
4567/!"
85/!"0(9/,'6:;!"
1<=>?5@AB5C?D5E>FG
H115!I':J3K!"23/!"
15!'L'2''M,A
'
45!-,&!'2''M,N
'
8,O.$P'6P!"%$3K!"23/!"
Q,O.$P'6P!"%$3K!"23/!"
R<ST!0(3K!"23/!"!
H145!I':J3K!"'67/!"
15!'L'2''M,A
'
45!-,&!'2''M,N
'
8,O.$P'6P!"%$3K!"'67/!"
Q,O.$P'6P!"%$3K!"'67/!"
R<ST!0(3K!"'67/!"!
H18('69U'VW!"IP)*!
45?5XF>FG
H415!S!,&'P':;!"V$PIP)*!
Nguyễn Phi Hùng – Nhóm 10B Trang :1
Đồ án Kỹ Thuật Lạnh GVHD : Nguyễn ThànhVăn
Q5!!,&'IP)*!
R/!"0.2')*!ef.].%$9Se!g!
Qhi5CjAB5?klm
HQ1[!9/,2'
HQ4&'(!")*!P3K!"'67/!"
5/!"0(V$!].
5!'PS!.'6c!
1[!!,&'+V$e\,
4[!!,&'+!":!"'
85!23!g!%$.'6c!
Q[!.'6c!)*!
R[!+_.S)*!n+_.S!,&'
o<pe-q!"r'T)d3VM!"'/!"0(S,L9!s'
t<ST!):.):u!"'.]!P!_.$&'(!"
vi'M,!,&'%$',Y'VT!":!"'
w<ST!/!"%$9Se!g!
1x5![!/!"0.2')*!
11&0()9)*!
y[!9Se!g!
1[!9Se!g!
4[!+!"\IgP9Se
HQ8&'(!")*!P3K!"23/!"
5/!"0(V$!].
5!'PS!.'6c!
1[!!,&'+V$e\,
4[!!,&'+!":!"'
85!23!g!%$.'6c!
Q[!.'6c!)*!
'V,
•
'$
~
I€
~
I/!"!":!"
Nguyễn Phi Hùng – Nhóm 10B Trang :3
Đồ án Kỹ Thuật Lạnh GVHD : Nguyễn ThànhVăn
•5‚ƒ$ƒ:$P!!":;,„V,Y'0…-!")*!P;,0(!"nVW!"SPd']!)9
)*!',Y3ƒsJ,!7!"d')*!\!$.!eI†'.d')*!6$;,„'p9!d3PS
!"!I,!'Y_.$!'6[!"‡'6u'qPS!"!Z!:
• "!/!"!"&YV,Y!VMP_.M!'q3b9
• 56P!"/!"!",&3!U!")9!".+,I./!s
• 56P!"e'YYV,Y!VMP_.M!'.(
• 56P!"/!"!",&3PS2'
• 56P!")#!q,O.PI/!"I
•Z!"$,'6K_.$!'6[!"!2')!"!/!"!",&3YV,Y!VMP_.M!'q3b9
5.e!,f!LZ'L",7P'q3b9:u)p.-,!W9.!"23n3p!3(,P!O!
I,!'Y_.(-p!n'c3M,23/!"'67/!"!W9",7P'q3b9ˆ1!,&'+'23
‰•1v
x
Š•Qx
x
‹ˆ,cˆ!,&'+!"'23'cS,0,!d')9/,',.'q3b9
!"VT|YnS_.S'6c!3p!",M,-,Œ!6$62'd9Acde9Z'L",7P'q
3b9I/!"VT}!"'6P!"';,",$!-,
Nguyễn Phi Hùng – Nhóm 10B Trang :4
:
+-
• ,&'+9/,'6:;!" '
!
Ž8vn4
x
• +b99/,'6:;!" ‘
!
Žt4’
Nguyễn Phi Hùng – Nhóm 10B Trang :5
Đồ án Kỹ Thuật Lạnh GVHD : Nguyễn ThànhVăn
CD&EFGH&D
%$:\!"!e)ƒST!I':JS3K!"23/!"n'67/!"SV(
'6Ps!"
ICCJ+-KJL-/-8ML(-N+,L'()*+,
PV,Y'•/!"0.2'•Ž8'2!•9•
•M!3b9-./01
CJ+-/-O/JL-L-'//P7
L/
A
'
Ž
v
g
E
n“9
8
”
AJ, ••“'2!”/!"0.2'2''M,3K!"23/!"
,O.$P2''M,),O.$P)/!"2''6P!"IPn,O.$P!e3'.+PV$PVc
q!"!"n3:\!"',&!V(ƒY3
.e6$ N
'
Ž
4
on1t
Žvnv9
4
U"7S+/JL-/21+,LV@(-N+,WX+-T
/2
N
'6
Ž
N
N'
β
n“9
4
”
AJ,•
N
•)&0(0…-!"-,&!'SV.r!"|$n'!M:;!",-,&!'
S)/!")–3U'',Y'VT
-pe'$[!•
N
Žxno5`PVM!"4•Q56$!"8xn',),&.YCZ
.e6$ N
'6
Ž
4
ICQJ+-KJL-/-8ML(-N+,/23)*+,
Nguyễn Phi Hùng – Nhóm 10B Trang :6
Đồ án Kỹ Thuật Lạnh GVHD : Nguyễn ThànhVăn
PV,Y' •/!"0.2'•Ž4R'2!
•M!3b9-./01
CJ+-/-O/JL-L-'//P7
L/
A
'
Ž
v
g
E
n“9
8
”
AJ, ••“'2!”/!"0.2'2''M,3K!"'67/!"
•"
ŽxnQR'2!•9
8
T!9|2''M,'L'n'6$'`PVM!"4•856$!"4vn
',),&.YCZ(,J,'T'`P/!")*!
.e6$ A
'
Ž
QRnx
4R
ŽRRnRo9
Ž
N
N'
β
n“9
4
”
AJ,•
N
)&0(0…-!"-,&!'3K!"-PILY!)(,,)*,",7$SIP!"
)–3U'',Y'VT
-pe'$[!'`PVM!"4•Q',),&.YCZn'6$!"8x
•AJ,-,&!'V.r!")*!'‚4xŠ1xx9
4
Z•
N
Žxnt
.e6$ N
'6
Ž
tnx
tvn4t
Ž8wnt9
4
4 -7\?L@1/21+,LV@(-N+,L'()*+,
'6
Ž
'
—˜n“9”
Nguyễn Phi Hùng – Nhóm 10B Trang :8
Đồ án Kỹ Thuật Lạnh GVHD : Nguyễn ThànhVăn
•Pf!)&!,&'+",7$9/,'6:;!"IP)*!)62')J!•PZL",M9'(,$
'^!'2'!,&'6$9/,'6:;!"'cs!"'$3M,V[S!,&',Y'6W!")J3S!,&'!"
-e'c'^!'2'!,&'!"'<ST!,O.-e)J3S!,&''`Pž',f.I,!'YI†
'.d'M9VMP'6S!,&!':u!"[!"0:\!"Vf!!"P,IY'2.56P!"I./!I^rS!
9/![s!"'$I/!"]!'!)J3Sb9
,O.-e)J3S!,&''!'`P/!"'|'!&0('6.eO!!,&'I_.$S3Ÿ!"
!,O.)J3)2e'‚/!"'|‰8•1‹'6$!"oQ',),&.YCZ
I
Ž
4
1
1
11
1
αλ
δ
λ
δ
α
+++
∑
=
cn
cn
n
i
i
111
αλ
δ
α
n
i
i
i
k
n“9”
AJ, •¡
!
+-eef.].%$)J3S!,&'n“9”
• ¢
!
&0(-£!!,&'%$d'),&.S!,&'n“ •9>”
• I&0('6.eO!!,&'n“ •9
4
>”
• ¤
1
&0('PM!,&'%$9/,'6:;!"Vf!!"P,'J,':;!"S!,&'n
“ •9
4
>”
• ¤
4
&0('PM!,&'%$SV.r!")*!'J,V.r!")*!n“ •9
4
>”
1 A7$'6S'ƒ,9¥!" xnx1R xnw
4 *} xn1v xnv4
8 A7$'6S'ƒ,9¥!" xnx1R xnw
Q ,'.9 xnxx4 xn1v
R ,2e-]. xnxxR xn1R
o iP)e0',6P!
δ
cn
xnxQt
t ,2e-]. xnxx4 xn1R
v :J,9–'SPn7$9–
$P
xnx4 xnw
w Z0–'
QJ+-/1_+
a. Phòng trữ đông
•&0('PM!,&'VO9U'!"P,%$':;!"V$P'6$'`PVM!"8•t'6$!"oRn',),&.
YCZZ¤
1
Ž48n8 •9
4
>
•&0('PM!,&'VO9U''6P!"%$V.r!")*!):.'/!"I/!"I:›!"V|‚$
3M,'6$'`PVM!"8•t'6$!"oRn',),&.YCZZ¤
4
Žw •9
4
>
•(,J,3K!"'67/!"'c!,&'+'6P!"3K!")•1v
x
1
+++++
+
+−
Žxn1w19
56f!'q'Y'c,O.-e%$S'29S!,&'O.:u_.e.b!•PZ,O.
-e'q'Y%$)J3S!,&'¦!":u[!'`P_.e.b!J,,O.I,&!!Z3M,)J!
\!PUVW!",O.-e„ƒST!:upe[!,O.-e'q'Y%$'29S
!,&')
tt
cn
δ
Žxn49
§!"J,
tt
cn
δ
'$0œ'!:u&0('6.eO!!,&''q'Y
I
'-
Ž
w
1
xQtnx
4nx
1Rnx
xx4nx
1Rnx
xxRnx
1vnx
',),&.YCZJ,!,&'+3K!"•8R
x
'!PSV$P!"P,5$Z&0('6.eO!
!,&''(,:._.$':;!"I
':
Žxn1w •9
4
>
5Y0(P'$'!:u,O.-e)J3S!,&'':;!"3K!"'67/!"
¡
!
ŽxnxQt“
‹”
Rn1x
1
1Rnx
xx4nx
1Rnx
xxRnx
1vnx
xx4nx
v4nx
1vnx
wnx
x4nxx1Rnx4
8n48
1
‰
1wnx
1
1vnx
xx4nx
v4nx
1vnx
wnx
x4nxx1Rnx4
8n48
1
1
++++++
+
+
Žxn1Qo •9
4
>
U&7O6/2@+-7S/)j)k+,48;+,
Y.VO9U'!"P,%$':;!"V$P[!"0:\!"'cb90œ-Œƒp9!d3P3S.¨)J3S
!,&'L'6S!,&!':u!"[!"0:\!"ƒMe6$'c!,&'+VO9U'!"P,':;!"V$P3M,)J!
\!!,&'+[!"0:\!"%$9/,'6:;!",O.I,&!LI/!"ƒMe6$,&!':u!"[!"
0:\!":uƒST!'`P/!"'|‰8•t‹'6$!"oon',),&.YCZ
I©I
0
ŽxnwR¤
1
fn
sn
tt
tt
−
−
x
!,&'+9/,'6:;!"!"P,
•'
0
Ž84nR
x
!,&'+[!"0:\!"%$9/,'6:;!"n'6$'`Pr'T•-J,
!,&'+9/,'6:;!"'
1
Ž8vn4
x
+b9‘Žt4’
a. Phòng trữ đông
iK!"'67/!"Z'
™
Ž•1v
x
.e6$ I
0
ŽxnwR48n8
1v4n8v
Rn844n8v
+
−
Ž4n4R •9
4
>
ZI
AdeI/!"Z,&!':u!"[!"0:\!"'6f!VO9U'!"P,%$':;!"V$P3K!"23/!"
IQQJ+-L_L-+-7S//2d+K-1WX+-
C&f/L'?ghL_L/-*+,45LV@+i
Nguyễn Phi Hùng – Nhóm 10B Trang :11
Đồ án Kỹ Thuật Lạnh GVHD : Nguyễn ThànhVăn
6
8
7
9
2
4
5
3
1
J3 Ad'),&. ¡“9” ¢“ •9
4
>”
1 A7$'6S'ƒ,9¥!" xnx1R xnw
4 f'/!"(''g3 xn1 1nR
8 A7$'6S'ƒ,9¥!" xnx1R xnw
Q ,'.9 xnxx4 xn1v
R ,2e-]. xnxxR xn1R
o iP)e0',6P! ¡
!
xnxQt
t ,2e-]. xnxx4 xn1R
v :J,9–'SPn7$9–
$P
xnx4 xnw
w Z0–'
w
1
1Rnx
xx4nx
1Rnx
xxRnx
1vnx
xx4nx
v4nx
1vnx
wnx
x4nxx1Rnx4
8n48
1
‰
41vnx
1
+++++
+
+−
Žxn1w89
56f!'q'Y'c,O.-e%$S'29S!,&'O.:u_.e.b!•PZ,O.-e
'q'Y%$)J3S!,&'¦!":u[!'`P_.e.b!J,,O.I,&!!Z3M,)J!\!
PUVW!",O.-e„ƒST!:upe[!,O.-e'q'Y%$'29S!,&'
)
tt
cn
δ
Žxn49
§!"J,
Nguyễn Phi Hùng – Nhóm 10B Trang :12
Đồ án Kỹ Thuật Lạnh GVHD : Nguyễn ThànhVăn
b. Phòng cấp đông
•&0('PM!,&'VO9U'!"P,%$':;!"V$P'6$'`PVM!"8•t'6$!"oRn',),&.YCZ
Z¤
1
Ž48n8 •9
4
>
•&0('PM!,&'VO9U''6P!"%$V.r!")*!):.'/!"I/!"I:›!"V|
9*!'6$'`PVM!"8•t'6$!"oRn',),&.YCZZ¤
4
Ž1xnR •9
4
>
•(,J,3K!"'67/!"'c!,&'+'6P!"3K!")•8R
x
56$VM!"8•8'6$!"o8
',),&.YCZJ,!,&'+3K!"•8R
x
'!P9S,VW!"5$Z&0('6.eO!!,&'
'(,:._.$':;!"I
':
Žxn1t •9
4
>
5Y0(P'$'!:u,O.-e)J3S!,&'':;!"3K!"'67/!"
¡
!
ŽxnxQt“
§!"J,
tt
cn
δ
'$0œ'!:u&0('6.eO!!,&''q'Y
I
'-
Ž
Rn1x
1
xQtnx
8nx
1Rnx
xx4nx
1Rnx
xxRnx
1vnx
xx4nx
v4nx
1vnx
wnx
x4nxx1Rnx4
8n48
1
1
++++++
+
+
Žxn1Qo •9
4
>”
•¤
1
Ž48n8 •9
4
>&0('PM!,&'VO9U'!"P,%$'‚\!"V$P`
•'
™
!,&'+'6P!"V.r!")*!n
x
•'
!
Ž8vn4
x
!,&'+9/,'6:;!"!"P,
•'
0
Ž84nR
x
!,&'+[!"0:\!"%$9/,'6:;!"n'6$'`Pr'T•-J,
!,&'+9/,'6:;!"'
1
Ž8vn4
x
+b9‘Žt4’
a. Phòng trữ đông
0
ŽxnwR48n8
8R4n8v
Rn844n8v
+
−
Ž1nt4 •9
4
>
Nguyễn Phi Hùng – Nhóm 10B Trang :13
Đồ án Kỹ Thuật Lạnh GVHD : Nguyễn ThànhVăn
ZI
Žxn1QoªI
0
Ž1nt4 •9
4
>
AdeI/!"Z,&!':u!"[!"0:\!"'6f!VO9U'!"P,%$'6]!3K!"23/!"
IQUJ+-L_L-+-7S/+\+K-1WX+-
C &f/L'?ghL_L45W7S?LV@+i
11
4
3
1
2
8
7
6
5
•(,J,3K!"'67/!"'c!,&'+'6P!"3K!")•1v
x
56$VM!"8•o'6$!"
oQ',),&.YCZJ,!,&'+3K!"•1v
x
'!P!O!Z0:ˆ,5$Z&0('6.eO!
!,&''(,:._.$!O!Z0:ˆ,I
':
Žxn44o •9
4
>
5Y0(P'$'!:u,O.-e)J3S!,&'':;!"3K!"'67/!"
¡
!
ŽxnxQt“
‹”
w
1
Rn1
1nx
1Rnx
xx4nx
1Rnx
xxRnx
1vnx
xx4nx
Qn1
1nx
wnx
x4nxx1Rnx
1nx
1Rnx
xx4nx
1Rnx
xxRnx
1vnx
xx4nx
Qn1
1nx
wnx
x4nxx1Rnx
1
+++++++
+
Žxn41t •9
4
>
VPhòng cấp đông
•&0('PM!,&'VO9U''6P!"%$V.r!")*!):.'/!"I/!"I:›!"V|
9*!'6$'`PVM!"8•t'6$!"oR',),&.YCZZ¤
4
Ž1xnR •9
4
>
•(,J,3K!"23/!"'c!,&'+'6P!"3K!")•8R
x
56$VM!"8•o'6$!"
oQ',),&.YCZJ,!,&'+3K!"•8R
x
'!P9S,VW!"5$Z&0('6.eO!!,&'
Žxn4o19
56f!'q'Y'c,O.-e%$S'29S!,&'O.:u_.e.b!•PZ,O.
-e'q'Y%$)J3S!,&'¦!":u[!'`P_.e.b!J,,O.I,&!!Z3M,)J!
\!PUVW!",O.-e„ƒST!:upe[!,O.-e'q'Y%$'29S
!,&')
tt
cn
δ
Žxn89
§!"J,
tt
cn
δ
'$0œ'!:u&0('6.eO!!,&''q'Y
I
-
Ž
Rn1x
1
xQtnx
8nx
Rn1
1nx
1Rnx
xx4nx
1Rnx
xxRnx
1vnx
xx4nx
Qn1
300
100
200
100
Nguyễn Phi Hùng – Nhóm 10B Trang :16
Đồ án Kỹ Thuật Lạnh GVHD : Nguyễn ThànhVăn
U
•:\!"!e!W9'!'^!"'^!'2'!,&'%$IP)*!L'‚Z'!6$/!"0.2'
ef.].%$9Se)*!
l5^!'2')*!'‚IP)*!6$9/,'6:;!":uƒST!'`PV,L.'|
aŽa
1
—a
4
—a
8
—a
Q
—a
R
n“ ”
56P!"Z a
1
5^!'2')*!_.$IY'2.V$P`n“ ”
a
4
5^!'2')*!L)9)*!0M!3b9V$PVcn“ ”
a
8
5^!'2')*!-P'/!"",Z5^!'2'!ežZ(,J,S
QR
Qx
Qx
xx
Qv
1x
Qx
xx
QQ
Qx
R4
4x
QQ
Qx
Qx
xx
Qx
xx
14
4x
‰•
8R®‹
5
‰•
1v®‹
5
‰•
1v®‹
Ro
1
5^!'2')*!_.$IY'2.V$P`-PV|ƒ*9U''6;,AcIP
)*!Z',Y'IY'f919S,`!–!"9:$ˆ3$'6f!'6]!IP)*!n-PZV|ƒ*'‚9U'
'6;,PIP)*!)I/!"ZŽša
bx
1
Žx
Adea
1
Ža
dl
1
Ž¯I
,
N
,
˜'
,
n“ ”
AJ, •I
,
&0('6.eO!!,&'%$S'|,(,J,SSV$PVf!!"P,n
'6]!n!O!'cI
,
„:u'!'6P!":\!"4C,f!"(,J,':;!"!"¥!",7$S3K!")*!
'c'$[!I'(,:.'`PVM!"‰8•R‹'6$!"oQ',),&.YCZ(,J,':;!"!"¥!",7$V.r!"
23/!"'67/!"ZI
ŽxnQt
•N
Ž8nQo9
>Y'_.M'!'PS!:u:$PVM!"'^!"u30$.
>Y'2.
>':Jn
“9ƒ9”
I
,
“ •9
4
>”
˜'
,
“
x
”
a
,
“ ”
5:;!" QnRQƒ8nQo xn1Qo t8n4 1otnw
5:;!"• Qnv1ƒ8nQo xn1Qo t8n4 1ttnw
5:;!" Qnxƒ8nQo xn1Qo Q8nw4 vvnt
5:;!"• Qnxƒ8nQo xn1Qo R1n4Q 1x8nR
O! QnxƒQnx xn1Qw t8n4 1tQnR
56]! QnxƒQnx xn1Qo t8n4 1t1
m+, ooUp]
QJ+-/m+/-'/WX+-R1Wh6WX+-4P+(-q6gha@1ar>
Q
5$Z a
4
Ža
n“I ”
AJ,•/!"0.2'23/!"n“'”
Nguyễn Phi Hùng – Nhóm 10B Trang :18
Đồ án Kỹ Thuật Lạnh GVHD : Nguyễn ThànhVăn
•,
1
•!'$!3,%$'T'`PI,:$P!,&'+1v
x
n'6$VM!"‰Q•4‹'6$!"v1',
),&.YCZ'$Z,
1
Ž4oon4I°•I"
l,
4
•!'$!3,%$'T'`PI,:$6$!,&'+•1R
x
n'6$VM!"‰Q•4‹'6$!"v1',
),&.YCZ'$Z,
4
Ž14n4I°•I"
•±Ž11';,",$!23/!"P19•'T'
Žša
sp
4
Ž
8oxx11
1xxx‹4n144n4oo‰8
−
Ž1wn4Q4I Ž1w4Q4
1
,&'+].P%$V$PVc)2eVW!"!,&'+].P%$0M!3b9
• '
4
,&'+].6$%$V$PVc)2eVW!"!,&'+%$3K!"23/!"
• ±Ž11';,",$!23/!"P19•0M!3b9
Žša
bb
4
Ž
8oxx11
1xxx‹8R1v‰QRnx88nx
+
ŽxnRQ4I ŽRQ4
Ade'^!"'^!'2')*!-P)9)*!0M!3b9V$PVc)
a
4
Ž1wn4Q4—xnRQ4Ž1wntvQI Ž1wtvQ
UJ+-/m+/-'/WX+-R1gs+-h+->
[
5^!'2')*!-Pd!!a
Q
V$P"r9S'^!'2')*!-P³!,Y.0S!"n-P
!":;,)9,&'6P!"3K!"n-PS+!"\,&!-P9ˆ…$
a
Q
Ža
1
Q
—a
Q
:u'!'`P/!"'|‰Q•1t‹'6$!"vo',),&.YCZ'$Z
a
1
Q
ŽNn“ ”
AJ, •N-,&!'3K!")*!n“9
4
”
NŽQƒQŽ1o9
4
•,&'):u!"'PM6$I,,Y.0S!"19
4
-,&!'V.r!"(,J,3K!"
VMP_.M!)*!ZŽ1n4 •9
4
Žša
1
Q
Ž1n41oŽ1wn4
b. Dòng nhiệt do người toả ra a
4
Q
a
4
Q
-:u'!'`P/!"'|‰Q•1v‹'6$!"vo',),&.YCZ'$Z
a
4
Copyright: Tài liệu đại học ©