Thông gió nhà công nghiệp Phân xưởng rèn, dập, mạ

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P_ qs12DdJ P F8U F8U
P^ q112+dF_ P V8U V8U
PR q( #5(z P P8F P8F
PU q !.ƒ„<…+<„PJF_ P F8U F8U
PG q !.ƒ„<…+<„ P P8J P8J
FE q  P F8F F8F
FP q;= P P8_ P8_
FF q BD+ƒ†dFEE P R R
FJ q !#6, P E8F_ E8F_
FV q->" P P8U P8U
F_ q("!#6,\DdPF‚ F E8^_ P8J
F^ q, $sJJF‚ J P8R _8P
FR qsU^^ P _8U _8U
FU 2I P P8F P8F
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V q, $s _ P8R U8_
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P q, $s P P8R P8R
F q, KL P F8F F8F
J q, ˆ P F8R F8R
V q BD+ƒ†dFEE P R R
_ q("! P F8U F8U

^ q! P ^8V ^8V
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R qKL P ^8V ^8V
U q6," P PP P
G q BP‚^F P R8_ R8_
PE q B P F F
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$pm55
VG8R
2e$A@!-'
('% '(%' *.%' &%&. "
dc
N kW= + + =
∑
+ "!-'7>,
   *
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dc
toa dc
Q k k k k N kcal h= = × × =
∑
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/1 KS 8 K> SK,$( 4
(!e 8 ;7( 4K> !#- )B"
 "  ! "
sp
toa sp d c
Q C t t G kcal h

β
= −
2"!4
D
$
z @K> !:48D
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"
DN*
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}OUUV8P^M(XN
•$1(#!3g!-7 B"g  M•O8_N
d
t
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d
t
O
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"
DN
c
t
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c
t
O
tt

T
t
OJ_M
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sp
toa sp d c
Q C t t G B kacl h
= − = × − × × =
3.2.5. 
 


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D$1@>! ++dJE
+ !-">
P
O
>
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2#)@>GEEPFEER_E
h)Sp>6OJEEVEE
2".67
2,>J>S
QSP}$],‰OFFE
QSF}! " ,‰OP_E

QSJ}! " 6~,‰OPPE
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>
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D
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F
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K>K
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$
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tt
T
t C=
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>,
Š2O>_OPFEEd_OPPG_M"DN
} % 3
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+ !- m>S! " K,! " 6~>,ŠFOV_E"D
+ !-;6],", @>>,Š+OGE"D
Q: 7;6],>MI�N
Q: 7`PF6]", @>"P g>,


" ! "
N N

q t kcal m h
α
α τ
= −
2"!4
‹+$1"!e  ;6]", @>


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qd
MN
N N
N
C
T
T
l t kcal m h
t
α τ
τ
 
= − + −
 
−

 
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/1 KS 6]!>OF8F
/1 KS 6]>OF8U
2q+82F !-!1 ';6]", @>K,"
*
DI$16I |
 

  
qd
den
C
C C C
=
+ −
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g88.,*
D!B$16@K!B",",OV8G^(>XF"hV8DIOV8F
(>XF"hV*
$%& * * 
*% ' .$ ' &
% .$ &" " " %( ! "
.$ & $$ $$
N
kcal m h
α
+ +
 
= − + − =

 
−
 
→

 *
" %( .$ &" )($%. ! "
N
q t kcal m h
α
α τ
= − = − =
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(
N
\$1l @>S$]>,
  


$%(' $%&($ %* ! " % ! "

o o
T
W m C kcal m h C
τ τ
λ
−
+
= + = =
\$1l @>S! " >,

  
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
$%) $%$ $%)&& ! " $% ! "

o o
W m C kcal m h C
τ τ
λ
−
+
= + = =

*
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\$1l @>S! " 6~>,
  


$%) $%$ $%'( ! " $%& ! "
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o o
N
W m C kcal m h C
τ τ
λ
−
+
= + = =
\$1 @,>





 
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$% $%& $%
% $% $%&
o
i
i
K kcal m h C
δ
λ
=
= = =
+ +
∑
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F
;%6,@,>

" $%)*& .& .$" '%' ! "
o
k T N
q k kcal m h C
τ τ
= − = × − =
o $1 mI
(

K,I
‹
>,
'%' )($%.
$$ $$ *%&/ &/
'%'
k
k
q q
q
q
α
−
−
∆ = × = × = <
["!4>: 7;P
F
,>>,

'%' )($%.
).)%( ! "
 
k
tl
q q
q kcal m h
α
+
+
= = =

[ )p>i
p
OE8JE8VOE8PFM
F
N
[ ),>i
,
OFE8GE8R_bFP8FE8R_dE8PFOJ8EJM
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).)%( %$ % ! "
tl
toa tl thanh
Q q F kcal h= × = × =
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7`4>K,!>6u>A 7`,>KS $1! 
Œ
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2 %3 4 % ).)%( %$( .'(% 5,0 ! "= × = × × =
-0
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2 $%' 3 4 $%' ).)%( %$( &)%'( 5,0 ! "= × × = × × =
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2"!4 )4>K,!>6uK,6u
i>Oi>OE8GP8FOP8EUMFN

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+ !-6;">
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D
+ !-6;"K,"=
F
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K>K
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t C=
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>,
Š2O>_OPFEEd_OPPG_M"DN
} % 3
+ !- m>S$]K,>SŠPOJ_E"D
+ !-;6]", @>S>,Š+OJ_E"D
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Q: 7`PF6]", @>"P g>,



" ! "
N N
q t kcal m h
α
α τ
= −
2"!4
‹+$1"!e  ;6]", @p>( >!4
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

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qd
MN
N N
N
C
T
T
l t kcal m h
t
α τ
τ

 
= − + −
 
−
 
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(()I*M"hN*
$%& * * 
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&$ & $$ $$
N
kcal m h
α
+ +
 
→ = − + − =
 
−
 
h !4

(%& &$ &" (()( ! "q kcal m h
α
= − =
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  



$%(' $%&($ %(& ! " %$& ! "

o o
T
W m C kcal m h C
τ τ
λ
−
+
= + = =
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E

\$1 @p>( >!4p




 
$%$ ! "
$% $%$
%$& *
=
= = =
+
∑
o
i
i
K kcal m h C

δ
λ
Q: ! IP
F
;%6,p>( >!4

" $%$ .& &$" (*)' ! "
o
k T N
q k kcal m h C
τ τ
= − = × − =
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‹
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(
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(*)' (()(
())'%& ! "
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k
cl
q q
q kcal m h
α
+
+
= = =
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&$
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Q q F t kcal h= × × = × × =
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g  ,"!48!>Ag  p>>,PExX*QxA $r7
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−
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AK,",A>S*Q: ,5-K,"g!-6]
g ;]ˆ(3A6"BK,(%L% 6@6%(3

A6"B*h3A6"B@@3>, MgNK,()*["!48
 6I(3A6"B
= +
∑
mai kinh
bx bx bx
Q Q Q (kcal/h)
2"!4
∑
bx
Q
e 6I(3A6"B

*
  
mai
bx
Q
>: "6I
mai
bx
Q
>: "6Ip()
3.3.1. + 6I 
Q: e-" K,"6]g ;I(3A
LBF,.";> !-K,""!- 8!0
B"
∆
= +
mai t dd

bx bv bx
Q Q Q (kcal/h)
2"!4
∆t
bv
Q
>: 6I ";> !-8M(>XN*
dd
bv
Q
>: 6I ""!- !-8M(>XN
 Z!0>: 6I ""!- !-*
# Z!0 !-'!'@(()6;",
[S 5@6]g 8 !-]", @(3A6"BL
"*/#! 5A4#3g!-66u-0$1
 !-'!'
!
@(()6;", 

=
TB
TB
bx
td
N
q
t
ρ
α
2"!4

‹
+
$1"!e  ;6]", 8(>X
F

"
D*[1 KS  >A‹
+
OFE
(>X
F

"
D*
•$1A56@6](3A6"B6 # |. 6
"(3AA0!:*\$1,5-K,")A,$s@
 *Ž!8 >, (r8>AB"6%J*G$1A56
]g •@(3A6"B8 "?(H 4@}*o2.
+~DA?•OE8^_*
I
6
g!-66?8(>X
F
*QAB"6%F*PUe;
]6uM•X
F
X,NCD<+EFFEEGXYZ[$1> \,+- K,"
)  "  >,    R  ?  I
6
O  ^FGG  M•X

F
X,N  O
M^FGGE8U^NXFVOFF^M(>X
F
N*

&