Condenser Excel Carh
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Transcript of Condenser Excel Carh
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totalcondenser at ethanoldistillation column
tube side shell side
TB1 212 F TA1 77 F
TB2 158 F TA2 120 F
TBave 185 F TAave 98.5 FTwall 141.75 F
Z 0.7962962963
X 0.4
Y 0.948 from Foust,Figure15.14a
delta T1 92
delta T2 81
delta Tcorr 81.8913719363
one shell pass, two tube passes
properties
density 53.434 lbft3 density 62.012375 lbft3
specific heat,Cp 0.7268 !tulb F specific heat,Cp 1.0014 !tulb Fk 0.238 !tuft h F k 0.36155 !tuft h F
viscosity 2.75"#04 lbft s viscosity 4.65"#04 lbft s
deltav 471.92076 !tulb deltav #988.615 !tulb
!ass flowrate 25044.92263 lbh !ass flowrate 297308.466 lbh
" 12802162 !tuh
assu!e no of tubes 360 tubes
tube s$ecifications from Foust
do 1 indi 0.87 in
t 0.065 in
%o 0.261 ft2ft
%i 0.2278 ft2ft
$itchdiameter 1.25 #i 0.00412826 ft2
$itch 1.25 in n#i 0.74308658 ft2
clearance 0.25 in
$ 400099.364 lbft2 h
&c 22 tubes %re 17346.7312
'smin 27.75 %pr 4.63156155
(herefore use from )err* &'!a( 0.013 from Foust
'nominal 30 in
'o 30 in hi 521.46275 !tuft2 h F
'i 29 in )i 0.00841827 h ftF!tu
+chedule 40
#shell 0.3125 ft2
$*+%C-./0T%-"+
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$!a( 80143.752416 lbh ft2
%re 6.74"/03
%pr 3.0274212706
&'!a( 0.013 from Foust, Figure15.16
ho 361.8367758892 !tuh ft2 F
)o 0.010588801 h ft F!tu
Al! 0.2440237046
ksteel 26 !tuh ft F
)wall 0.0008537422
Tl 158 F
k 0.2384 !tuhftF
density 53.454 lbft3
viscosity 2.78"#04 lbft sTv 212 F
density 0.09235 lbft3
hfil! 774.8245015305
)fil! 0.0049448844 h ft F !tu
total 0.0248057004 h ft F!tu
#ince the area of the phase with the 'reatest resistance is the shell side,consider Ao
154.457143634 !tu h ft2 F
% 1012.1320390108 ft2
- 12.3437119067 ft
3s 45167782947:
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,Figure15.16
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Te!perature, ; #pecific heat, Cp, Btu3lb < ensity, lb3ft= Tr
ethanol =465=722 65714=119>77 84597>4797>29 65>917>8699
water =465=722 156684262661 >156=169>788= 65481828742
TBA =465=722 659=81846688 885:462>9>2:2 65>:2187:2=
TB =465=722 65881=996>49 8>5=922:1117: 65>>:48=>>4
isobutene =465=722 65>=8::4=2:8 =15:96:61>:== 659=9811492
0.7260720935 53.4538327536
(em$erature, =465=722
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latent heat, Btu3lb
=>252=>>=6719:
16615628874=8>4
2=151178:>:92>
1=>56:866=>8:2
1285976867:687