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'illflfn'jf'1fl~1{i1~flm1 aspect ratio 10 :JJfl11:JJL'VI:JJ1~6'I:JJ'Vl

'il~t1l1 'lll-1i~fl~l'tl'il~tJ~~;J ~flflru~ fl~ru~f11'j 1'VIG1'Vfl;Jfl1fnf'11'W

~1-1ifl~'W1~fl1'll L~fl~'ill fllJfl1~:JJL~1fllfnf'11ml L~tJ;Jn'W~1~~~~

'll~ mru:U1.f11'Vi~~~G11~mfl fl16'1Lfl{i1fl1'j~1tJL'Vl:JJ1~~:JJlfl fl11

'illfl~G1fll'j~fl~11'W'j'll~ 4 LLG1~5 '1l~LL6'I{i1~fl11:JJ~:JJ~'Wfi"

'j~'VI11;Jfl11:JJfl11;J'Vfl;J~~'ll~mru:S1.f11'Vi(LLfl'WX) ~flfl11:JJL~1

'Vfl;Jfl1f11f'1~fl1l:JJ~~~1~1 (LLfl'WY) 1{i1tJ~J1L~'WLL'Vl'Wfl11:JJL~1d 1 ~..", d'Vfl~fllf11f'1'Vlfl11:JJ6'I;J1 'W4 'Vfl;Jfl11:JJ6'I~'Vl~'VI:JJ{i16'lL'VtJ1LL'Vl'W

" "'" .J 1 ~ '"fl11:JJL'j1'Vfl;Jfl1fnf'1'Vlfl11:JJ~;J2 'W4'Vfl;Jfl1l:JJ~;J'Vl;J'VI:JJ{i1LLG1~6'1

LL{i1~LL'Vl'Wml:JJL~1~ml:JJ6'I~31'W4'Vfl;Jfl11:JJ6'I;J~~'VI:JJ{i1~;JLL6'I{i1;J

l'W~'ll~ 4 LLG1~5 ~1~L':;~':h fl1l:JJL~1'Vfl;Jfl;fnf'1~flfl11:JJfl11;J

'Vfl;J~~'ll~mru:S1.f11'Vi~aspect ratio 5 (~'ll~ 4) iifl1l:JJb~1'Vfl~

fl1fl1f'1L'll~tJ'Wbb'll~;J1'll(9l1:JJfl11:JJ~~'Vfl~~;J'll~mru'B1m'Vi'1l;J~1,:j

'ill nfl11:JJL~1'V fl~ fl1 fllf'1 ~fl fl11:JJfl11~'Vfl~~~'ll~fl 'jru:S1m'Vi~

aspect ratio 10 (~'ll~ 5) ~'V'J'U11fl1l:JJ~~'Vfl~~;J'll~mru'B1m'Vi

~1;J1iifl11:JJb~11fl~b~tJ;Jn'W~;J~;J'll~mru:S1m'VitJm1'W1'W'tl1;J

~'W'Vfl;J~~'ll~mru:U1.f11'Vi~ii fl11:JJL~1'Vfl;Jm fl1f'1:JJlnfl1l~1'W~'W

L~fl~:JJ1'illf1fltJ1fl~'U~nru'Vll~L-1il'Vfl~fllfl1f'1'Vi11~fl11:JJb~1m~ii"

l),airMaQI

O,A

0.2

(fl) ('11)

~tJ~ 3 fl11:JJb~1'Vfl;Jfllfl1f'11'W~'1'll~mru'B1m'Vi~(fl) aspect

ratio 5 LLG1~('11) aspect ratio 10

'illflfn'j~fl~1~'1flGil1 aspect ratio 10 iifl1l:JJb'VI:JJ1~6'I:JJ

~'il~t111tJ1-1i~fl~l'tl'il~tJ~~'1Mfl~ru~fl~ru~fn'j1 'VIG1'Vfl~fllfl1f'1

1'W~1-1ifl5'W1Mfl1'll L~fl;J'illfliifl11:JJb~1fllfl1f'11fl~ b~tJ~n'W~1

~'1~;J'll~mru:S1.f11'V'J~;J~G11~ii1flfll6'1 Lfl{i1f11'j~1tJL'Vl:JJ1G1~

:JJlf1fl11

fl1'j 1'VI~1'W~'1'll~mru'B1.f11'VibtJ'W~'1~'tl1tJ1'Wf11'j~{i1~'W'Vl'W1'W

fll 'j 6'1~1~~ 'I'll ~ f1'j ru'B1 I11 'Vi~ '11~ L~ fl~ 'ill fl1 'll 'j bbf1'j:JJ

flfl:JJVl1L(9lfl{6'll:JJ1'j~'ll~'U'll'j;J bLm'11 'j'll~l~~ f1~ru~'Vfl.:iti.:i, "'ll~mru:S1m'Vi~ fl~~ tJ~~l~fl~ ~ru~fl~ru~ fn'j 1'VI~~bfl{i1~'W1'W~~'ll~ mru:U1.f11'Vi1~ 1{i1tJ~i~ tJ1~~fl~11') ru~ f1~ru~f11'j1'VIG1

38-3

'CreatingGreenSociety through GreenProcessEngineering"W'l1E178-10 wfJl'1~n7EIU2558

'tID·HJl fllf'1~'tI'WlI'1Vll\1 boUl~l\1tl'Wb Y1Dl'lfH1J~m~ru::lfl1'j 1vm~~,"dil'l~'W'illflfl1'S~l~D\I

................................................~<IIa.I.~i$'.~~~""~~('C!~) .

atl~ 4 mllJb~1't1D\lD1fl1f'1\l11lJbb'W1mll.Jfl11\1't1D\lt;)\lU~mru

'ii1m~~ aspect ratio 5

i 3

i ;2 ..•••..•• •..·1··"../·············...; .. ··············:: : ""I.b\~~ .1

0.0 .2 1.2.4 .S .8 1.0

Radial distance coordinate (10·lm)

Ll'ltJP;m~1~!'l11lJn11\1'UD\lVll\1bOUl 14, 8, uae 4 em

\JIllJ~l~tJ ~\I\,h d:l'Wfl1'S1uarrne !'l11:I..JL~1'UlLoUl'UD\lDlfllf'1

0.001 m/s Dru'VIi1ij'UD\lD1fl1f'1bb~::lJl 27 °c !'l11lJ~'W 1 atm, ~b1mmm'Wfl'S::ltJ1'Wfl1'S 100 1'W1Vi bL~::lrllmllJ~::lb0tJl'I'tID\lblJ'1j

'U'Wll'1 25X75Xl eells 'illflt-l~fll'SP;fl'\~n1'W'Su~ 6 "'1'I~1'W'tID\I~Dlfl1f'1 LdD'tI'Wll'1'V11\1LoUl'UD\lD1 fl1f'1,j'e>tJ\J::l~\I t-I~1~fl1'Sfl 'S::l\JltJ

~1't1D.:ID1fl1f'1iirll,j'DtJ~\ll Uril1tJ~\lLb"'I'I\l1 'W~U~ 6

d .... A. ~ d V I

LlJD~'ill'Srul'V1f'1'V11\1fl11lJL 'S1'UD\lDlfllf'1'V1Vll\1b 'til ~tJ11

fl11lJL~1~'V11\1boUl't1'Wll'1 14 em iimllJL~1"'\I"'l'Im::l\JltJD~~1~ , ~tJ~nru fl11lJL~1~Vll.:1boUl'U'Wll'1 8 em 'il::liimllJL~1"'\I"'I'ID~~~, ~

I~··.·mn01."

0-

(fl) 14 em ('tI) 8 em (!'l) 4 em

~ltlt-lgjfl1'S'V1~gjeN

'illfl fl1'SP; fl~l L~\I ril1b~'U.fl1u1 'Wu~ mru'ii1m~ bbuun D~lJl1

'V'JD\lL;5D.:I~'WLl'ltJ1-ut U'SbbmlJ Lm~'W'1JDf'1l~~f'11"'\JIf'tlD\ll v@~\I

fil'W1 ru t-I~ fll'S~ 1~ D\I dJ'W~t11 L~D~ D ua ::l"'llJ 1 'Stlti \ll'W

DDfl LLuu t;)\lU ~ m ru'ii1 111~ uuu L~ tJ1 tl'WLY1D fl1'S1-tl\ll 'W1'W

m::ltJd'Wfl1'St-I ~\JIVll\1bflil'VI~DVll\1'll1L!'lil~ D1U

iJ' 0 ~v CIt. 6' CIt. Q.J

flru::lt-lVll1'iltJ'tID'UDtJ!'lru flru::l1 f'11m'SlJ f'11'"\JI'S :I..J'VI11VltJ1~u~ ,DtJ~'S1'1ji51il ~"',rtJ"''W'W\ltJU'S::llJlrurll'V1-rtJvh Lfl'S\I\ll'W1~tJ.n, ,

" ..LeJn~l'SeJl.:1eJ.:I

[1] H.Marschall et ai., Chem. Eng. Technol., 34 (8) 1321-1327(2011).

[2] N. Kantarci et ai., Process Biochem., 40 (7) 2263-2283(2005).

[3] J. P. Abulencia and L. Theodore, Fluid flow for the

practicing chemical engineer. John Wiley & Sons. NewJersey (2009).

[4] M. Y. Chisti. Airlift Bioreactors. Elsevier Applied Science:London (1989).

[5] N. Suthitananont and J. Rakkhammool, A Study of Two­

Phase Flow in Rectangular Bubble Columns Using

Computational Fluid Dynamics. Ubon Ratchathani

University: Ubon Ratchathani (2014).

38-4