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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