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Natural Convection Heat Transfer Coefficient Cal
Workbook Contents
Click on tabs at the bottom of the screen to access the following:
Tab 1.Contents (current tab)
Tab 2.Fluid Properties - Set values of fluid properties for other
Tab 3.Vertical Plane
Tab 4. ori!ontal Plane
Tab 5.ori!ontal C"linder
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ulator - S.I. Units
orksheets
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Selection of Fluid and Setting the Fluid Propert"
values for use in the other #orksheets
nter Te!"eratures an# $ressure
$% (&nter Valu
'% "ellow cell
Fluid Pressure (kPa): %
%&UI'
'NSIT(
Select a %lui# an# nter Te!"erature
C)oose *+t)er %luiClick at right to Select Fluid oluene of t)e list if ou /
-*+ to ,* "ro"erties obtaine#
%
'ensit fro! above !enu selection0
31
+
nter a %lui# 'ensit +btaine# lse/)ere
%lui# 'ensit esult0 31 ,fro! !
(his is the densit" value that will be used in all of the other worksheets.)
3ISC+SIT(
iscosit fro! above !enu selection0
3.4-4 Pa-s
-*+ to
+
C)oose *+t)er %lui
nter a %lui# iscosit +btaine# lse/)ere of t)e list in t)e !e
t)is /orks)eet6 if
Surface emperature (oC):
Fluid emperature (oC):
emperature /ange (oC):
kg0m,
Fluid 1ensit" (kg0m,):
k78!3
emperature /ange (oC):
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%&UI' Fluid Viscosit" (Pa-s) flui# "ro"erties obt
%lui# iscosit esult0 3.4-4 $a-s ,fro! !
(his is the viscosit" value that will be used in all of the other worksheets.)
S$CI%IC
H9T
S"ecific Heat fro! above !enu selection0
1: 20kg-3
-*+ to 445
+
C)oose *+t)er %luinter a %lui# S"ecific Heat +btaine# lse/)ere of t)e list in t)e !e
t)is /orks)eet6 if
Fluid Sp. eat (20kg-3) flui# "ro"erties obt
%lui# S"ecific Heat esult0 1: ;8k7-< ,fro! !
(his is the specific heat value that will be used in all of the other worksheets.)
H2=9&C
+N'UCTI3IT(
T)er!al Con#uctivit fro! above !enu selection0
.123 #0m-3
+
C)oose *+t)er %lui
nter a T)er!al Con#uctivit +btaine# lse/)ere of t)e list in t)e !e
t)is /orks)eet6 if Fluid h. Cond. (#0m-3) flui# "ro"erties obt
%lui# T)er!al Con#uctivit .123 W8!-< ,fro! !
(his is the thermal conductivit" value that will be used in all of the other worksheets.
emperature /ange (oC):
emperature /ange (oC):
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T
TH2
=
>$C+%%
T)er!al ?". Coeff. fro! above !enu selection0
1.15-3
+
C)oose *+t)er %lui
nter a T)er!al ?"ans. Coeff. +btaine# lse/)ere of t)e list in t)e !e
t)is /orks)eet6 if
flui# "ro"erties obt
T)er!al ?"ansion Coeff0 1.15-3 ,fro! !
(his is the thermal e6pansion coefficient value that will be used in all of the other wo
%.4
7 +*.$
4 7 %.4
@uations an# eferences
he e8uations used to calculate the fluid properties in this worksheet are sho
he source for these e8uations and the constants in the 9ookup able used t
the calculations came from:
9inks to the tables for each fluid propert" are given at the top of the workshee
'ensit of /ater0
is in 3
'ensit of li@ui#s ot)er t)an /ater0
is in 3
T)e #ensit of air is calculate# /it) t)e I#eal Aas &a/
3-
hermal &6p Coeff (3-)
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iscosit of &i@ui#s0
is in 3;
iscosit of 9ir0
is in 3
S"ecific Heat of 9ir0
is in 3 Cp is in 20kg-3
S"ecific Heat of &i@ui#s0
is in 3 Cp is in 20kg-3
T)er!al Con#uctivit of 9ir
is in 3 k is in #0m-3
T)er!al Con#uctivit of li@ui#s
is in 3 k is in #0m-3
T)er!al ?"ansion Coefficient of &i@ui#s
7 e6p>C = C40 = C,(ln) = C'(C+)? is in Pa-s
7 (CC4)0( = C,0) is in Pa-s
Cp 7 @C = (C4>(C,0)0sinh(C,0)?4= C'>(C+0)0cosh(C+0)?4A04$.*
Cp 7 (C - C4 = C,4- C',= C+')0$.%+
k 7 CC40( - C,0 = C'0
k 7 CC40( - C,0 = C'0
7 (0V)dV0d 7 (0v)dv0d 7 d(0)0d B (0)0 7 >(04) - (0)?0(
is in 3; is in 3- he values of come from the e8uations at the top of
T)e t)er!al e?"ansion coefficient of air is calculate# as
B 18T6 /)ere T is in
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he source for the data in the tables below used to calculate fluid
es in
onl")
-*+ to ,* %.$5*4 %.45,
Calculations0 31.12 ariables
/ange; C c c4
;;4-richloroethane -, to ,4* %.*%4 %.4+'5+
* ,at t)e botto! ;4-Dutadiene -,5 to 5* .$5 %.4'nt to enter flui# ;4-Prop"lene gl"col -% to ,+4 .%*4, %.4%
else/)ere. ;,-Dutadiene -%* to +4 .4,' %.454
-Dutanol -$* to 4*% %.*$45* %.4$,
-Ectanol -+ to ,5* %.'$*5* %.4'*,
-Propanol -4 to 4' .4'+5 %.454$
4-Dutanol -+ to 44 %.*$4 %.44''
4-Ectanol -, to ,+5 %.+%54 %.4+*54
4-Propanol -$$ to 4,+ .5** %.4''
cetic acid 5 to ,$ .''$ %.4+$*4
cetic anh"dride -5, to ,,, %.$$+4 %.4+$5
cetone -*+ to 4,+ .4,,4 %.4+$$
cetonitrile -'' to 45, .,%' %.44+*5
cr"lic acid , to ,'4 .4'' %.4+$44
ir % to +%% $.,'+
nu selection Den!ene to 4$* .%4+* %.4
Den!oic acid 44 to '5$ %.5+$5 %.4'$4
Dromoben!ene -, to ,*5 %.$44 %.4,4
Dut"l acetate -5, to ,%4 %.55*' %.4,5
Carbon disulfide -4 to 45* .5*$ %.4$5'*
Carbon tetrachloride -4, to 4$, %.**$,+ %.45'
Chloroben!ene -'+ to ,+* %.$5 %.4$%+
Chloroform -, to 4, .%$' %.4+$
Chloromethane -*$ to , .$5 %.4+$55
Cumene -* to ,+$ %.+$5 %.4++$,
* ,at t)e botto! C"clohe6ane 5 to 4$ %.$$**$ %.45,5
u near t)e to" of C"clopentane -, to +%5 .%,+ %.45%,+
u /ant to enter 1ecane -4* to ,'' %.'%$' %.4+5+
Perr"s Chemical &ngineers andbook; Ch. 4; Ph"sical and Chemi
ir Viscosit": able 4-,4 9i8uid Viscosit": a
ir Specific eat: able 4-+ 9i8uid 1ensit": a
ir hermal Cond.: able 4-,' 9i8uid Sp. eat: a
http://accessengineeringlibrary.com/browse/perrys-chemical-engineers-handbook-eighth-edition?utm_source=HT%20Coeff%20SI&utm_medium=Excel&utm_content=Perrys%20Sec2&utm_campaign=FluidProp#p200139d899702_1001http://accessengineeringlibrary.com/browse/perrys-chemical-engineers-handbook-eighth-edition/p200139d89972_420001?utm_source=HT%20Coeff%20SI&utm_medium=Excel&utm_content=Perrys%20T2-312&utm_campaign=FluidProp#p200139d89822_421001http://accessengineeringlibrary.com/browse/perrys-chemical-engineers-handbook-eighth-edition/p200139d89972_420001?utm_source=HT%20Coeff%20SI&utm_medium=Excel&utm_content=Perrys%20T2-313&utm_campaign=FluidProp#p200139d89822_427001http://accessengineeringlibrary.com/browse/perrys-chemical-engineers-handbook-eighth-edition/p200139d89972_156001?utm_source=HT%20Coeff%20SI&utm_medium=Excel&utm_content=Perrys%202-156&utm_campaign=FluidProp#p200139d89822_176001http://accessengineeringlibrary.com/browse/perrys-chemical-engineers-handbook-eighth-edition/p200139d89972_96001?utm_source=HT%20Coeff%20SI&utm_medium=Excel&utm_content=Perrys%20T2-32&utm_campaign=FluidProp#p200139d89822_98001http://accessengineeringlibrary.com/browse/perrys-chemical-engineers-handbook-eighth-edition/p200139d89972_420001?utm_source=HT%20Coeff%20SI&utm_medium=Excel&utm_content=Perrys%20T3-314&utm_campaign=FluidProp#p200139d89822_433001http://accessengineeringlibrary.com/browse/perrys-chemical-engineers-handbook-eighth-edition/p200139d89972_156001?utm_source=HT%20Coeff%20SI&utm_medium=Excel&utm_content=Perrys%20T2-153&utm_campaign=FluidProp#p200139d89822_165001http://accessengineeringlibrary.com/browse/perrys-chemical-engineers-handbook-eighth-edition/p200139d89972_156001?utm_source=HT%20Coeff%20SI&utm_medium=Excel&utm_content=Perrys%20T2-153&utm_campaign=FluidProp#p200139d89822_165001http://accessengineeringlibrary.com/browse/perrys-chemical-engineers-handbook-eighth-edition/p200139d89972_420001?utm_source=HT%20Coeff%20SI&utm_medium=Excel&utm_content=Perrys%20T3-314&utm_campaign=FluidProp#p200139d89822_433001http://accessengineeringlibrary.com/browse/perrys-chemical-engineers-handbook-eighth-edition/p200139d89972_96001?utm_source=HT%20Coeff%20SI&utm_medium=Excel&utm_content=Perrys%20T2-32&utm_campaign=FluidProp#p200139d89822_98001http://accessengineeringlibrary.com/browse/perrys-chemical-engineers-handbook-eighth-edition/p200139d89972_156001?utm_source=HT%20Coeff%20SI&utm_medium=Excel&utm_content=Perrys%202-156&utm_campaign=FluidProp#p200139d89822_176001http://accessengineeringlibrary.com/browse/perrys-chemical-engineers-handbook-eighth-edition/p200139d89972_420001?utm_source=HT%20Coeff%20SI&utm_medium=Excel&utm_content=Perrys%20T2-313&utm_campaign=FluidProp#p200139d89822_427001http://accessengineeringlibrary.com/browse/perrys-chemical-engineers-handbook-eighth-edition/p200139d89972_420001?utm_source=HT%20Coeff%20SI&utm_medium=Excel&utm_content=Perrys%20T2-312&utm_campaign=FluidProp#p200139d89822_421001http://accessengineeringlibrary.com/browse/perrys-chemical-engineers-handbook-eighth-edition?utm_source=HT%20Coeff%20SI&utm_medium=Excel&utm_content=Perrys%20Sec2&utm_campaign=FluidProp#p200139d899702_10018/9/2019 NaturalConvectionHeatTransferCoefficients SI Units Final Protected
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ine# else/)ere. 1ibut"l ether -*$ to , %.++*' %.454',
1iethanol amine 4* to '' %.$$' %.4,5*
nu selection 1ieth"l ether - to *' %.*++' %.4$'5
1imeth"l sulfo6ide * to '+ .%* %.4+$*
1iphen"l ether 45 to '*' %.+4,, %.44$1odecane -* to ,$+ %.,,45 %.4''
&thanol -' to 4' .4$$ %.45'*&th"l acetate -$, to 4+% %.$** %.4+$+
&th"l ben!oate -,+ to '4+ %.'$$' %.4,$*'
&th"lene gl"col -, to ''5 .,+ %.4+4+
&th"lenediamine 4 to ,4% %.5$'4 %.4%5%4
Fluoroben!ene -'4 to 4$5 .%' %.45455
Formamide , to '*$ .4'$ %.4%,+4
eptane -*% to 45 %.4+* %.44
* ,at t)e botto! e6adecane $ to '+% %.4,4$* %.4,+*u near t)e to" of e6ane -*+ to 4,+ %.5%$4' %.4'
u /ant to enter "dra!ine 4 to ,$% .%+ %.,
ine# else/)ere. Gsoprop"l amine -*+ to ** .4$% %.4$4$
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etrah"drofuran -%$ to 45 .4+', %.4$%$'
oluene -*+ to ,* %.$5*4 %.45,
rieth"l amine -+ to 44 %.5%,+ %.45,$
Jndecane -4+ to , %.,5%, %.4'$5
Vin"l chloride -+' to +* .++ %.45%5
#ater % to $% -,.$+ %.'%,$
Ether Fluid
* ,at t)e botto!
u near t)e to" of
u /ant to enter
ine# else/)ere.
nu selection
rksheets.)
$,.4*
$,%.*
n below. Cop"right K
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4 - )
this section.
.
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densit"; viscosit"; specific heat; and thermal conductivit" are the tables itemi!ed below from:
?cel looku" results base# on selecte# flui#0
+*.5+ %.4*4' *4.,$ -*+ to -44.%$ $%+.5 ,5.+'4
or 'ensit Calculations0 .34 ariables for iscosit C
c, c'
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+$'. %.4**,4 ,%.44$ -*$ to ' %.%45 4% -,.%5
5,. %.4%4 %+., 4% to , -,5+.4 555 .
'.5 %.4$' 5'.44 5, to %% %.*5 -,.$ -,.44
54* %.,, 5$.,, * to * -,5.,'5 4$,+ ,.5*,5
5.$ %.,%,, 5%.4%5 4% to ,'% -4.,5, 4%5.++$ %.4$+5 5%.,,+ - to 4+, -5.$4'' *.* -%.'**,
+' %.4,5$ '.%$ -5, to 5 5.$5+ 5$.*$ -,.%'$+4,., %.45$ $$.%+ -+, to 4%% '.,+' -+'. -,.5$$5
*$ %.4$'4 +%.5+ -4, to 4' -'%.5% ,%,+ '.4++
54% %.4$$ 4.%$ -, to ,%, -4%.++ 4'$.+ .4',+
+*, %.4%4+' ',.%$ to 4% -+,.*%$ '%,%.$ +.*5%'
+%.%* %.4$4* *.%4 - ' to $% -%.%' %+$.5 -%.54
55 %.4+5$ '+.%' % to 44% '%.+, -*4.,* -5.+'
+'%.4 %.4$' %%.4%4 -*, to +* -*.'44 $55.%5 -%.4,''+
54, %.4$+5 44.'' $ to 4* -4%.$4 44%,.+ .44$*
+%5. %.45+,5 $.5+ -*$ to ,, -.,45 '% -%.*'
+,.+ %.$*$ ,4.%'+ to 4+% -5+.5$ '5+.' *.+%$
'5.$+ %.4*54 +*. -4, to $% -,.+5 *4 4.*4+
4 %.4$+5 $.%$* + to -'.+45 '*5.5 %.+5'5
+4.+ %.4'5, ,4.%'4 -*$ to + -4+.,5 5$*.4 4.%*
+%.++ %.45' 5'.%5* -4, to +4 ,.++5 -$5., -,.+*4
+ %.4*55, %%. -, to 45 -%.%** '* -.+*,*
'*5. %.4$ $$.'$ -%$ to 55 -.*4 5*%.55, -%.+'
+54. %.4*$+ *$.$ -4 to $+ -.,+$ 4,.
+,+.+ %.4**$' 54.% -$5 to 4, -.%+*$ +4%.$ -.'*+5'. %.4$*$ %%.+* -$' - -.,*' $.5 -%.%%5+,*
5 %.45'5* %.+ -'$.to '% -.* %*'.* %.,$4+
+*'. %.4$+5 4$.4++ -++ to ,4% -$.+' ,+., *.%**
+$.5 %.4$+5 '.44* -4 to $4 -5.++ $$.%* -%.+4+%4
*'.4 %.4$'4 ''.4 5 to 4'% -%.5*+ '5.$ 5.%4$
,%., %.45,+ %.+ -4+ to '+ -+.'$* ,*,.+ %.,5
5%$ %.4$+5 44.'+ % to 45 -*.4** 4%$$. .%*
'*.5 %.455$* 54.'* -,% to *4 -+,.+%* $,. 5.'%*
*'.4+ %.,45$ *'. $ to 4$4 -',.,,+ ,$$.5 '.,*$,
5* %.4'$ '$. , to 4$+ *+.4+ -%54 -4*.%$'
%%.$ %.4$+5 5'.%5* -4 to ' -4,.*,4 $,'. .*4'
,$.,+ %.4* 4%.*4 -5, to +* -$.4$4 +'*.5 .%'+'
.4 %.45+* %.+ , to '% -5.,$ *.5 -%.+'+4
, %.,%%* %'.'* -,% to '+ -44.5+ 5+$ .5%
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+'%.+ %.4*4 54.% -%$ to %% -%.,4 *%%.*4 -%.%*4$
+*.5+ %.4*4' *4.,$ -*+ to -44.%$ $%+.5 ,5.+'4
+,+.+ %.4$54 %.* -4, to $ -,.5%5 +$+.5$ -.%*4
,* %.4$+5 +.,%$ -4+ to 4,$ +4.5 -'*+.* -$.+5
',4 %.45 4.'*$ -', to 45 %.44*5 45.++ -.54$4
-%.%%* .$4&-%% $.%+ % to ,5, -+4.$', ,5%,. +.$
ts reserved.
; ; from:
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-%.%%$+, -*+ to 445 '%'% -+4., %.*+ % %
alculations0 1.:F3 ariables for S"ecific Heat Calculations0
c' c+ /ange; C c c4 c, c' c+
-, to 45 %,,+% +*.,
-, to 5 ,++% -,.' %.*5%%5 -%.%%%+4-%.+''* -% to $$ +$%$% ''+.4
-%$ to 55 4$$% -,4,. .%+ %.%%%%,4
,.,$5&=%44 -*.*4, -$* to $ *4%% -5,%.' 4.4**$
4.,%'&=%4' -%.%* -4, to *' +5,5% -'$'* *.54+ -%.%4++,
4.$$&=%* -'.%45 -4 to 45 +$5% -,+ .**
-+ to ** '45*% -,*'. ,.$4$ -%.%,+
4.&=%, -,.%,* -$$ to $% ,**$ -%'4.4 ,.+4*',
-4 to $4 '55% -'54. '.5'+ -%.%''
5 to $ 139640 -320.8 0.8985
-4, to 55 ,%% +
-*+ to + ,+%% -55 %.4$,5 %.%%%$*
-'' to $4 *5+$4 -44.4 %.,'%$+
, to %4 ++,%% ,%%
-5, to 445 4$*+$ *,*% ,%4 5+$% '$'
to $% 4*''% -*.+ %.'5$
44 to 55 -+'$% '5.4
4% to 444 4%% -*.'+ %.,+$
4+ to 4 $+% ,$'.+4
-4 to 45* $+%% -44 %.+%+ -%.%%'+4 4.%&-%%
-4, to -5+45%% $*. -,%.,*' %.%,''++
-'+ to $5 -,%5+%% +,,$ -+,.*5' %.%,'$,
- '% to *, 4'$+% -.,' %.',4%*
-'.+%%&-%45 % -*$ to %% **% -4%5.* %.,5'+ %.%%%'$$
-* to +4 54, '*'.$
5 to 45 -44%%% ,$., -*.'4 %.%%$5
- to $5 44+,% -'%,.$ .5,'' -%.%%%*$
-4* to $5 45$4% -*5.* .%5,5
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-*$ to 55 45%54% -4+*.$, %.*+'45
-,.,5 %.+ 4$ to 4$ $'4%% 4$
5, to %% '''%% ,% -+.+ %.%%$5,
$ to % 4'%,%% -+*+ %,
45 to 4*5 ,'% ''5.5,.*+5&=%4, -% -* to +5 +%$4% -,$.5 ,.%+
-' to 5 %4'% -,*., -%.%,%,' %.%%4%,-$, to ,, 444,% -4'.$ .'54
-,' to 4, 4'+%% ,5%.
4.+%%&=%4 -+ -, to 44% ,++'% ',.5$ -%.$'$
to 5 $'''% -+%.4 %.,5%''
- ,, to '5 -4 5,' -'%* %.%'5,,,
.$5&=%4' -% $ to 44% ,'%% +%.
.'%4&=%44 -% -* to 4'5 .4 ,''% $4'. -4+'5.* -%
$ to 4$5 ,5%,+% 4,.'5 %.$,4
+.$$&=%4 -% -* to $5 544% -$,.5$ %.$$5,'
-5.45&-%%* , 4 to ,$% 5*$+ +%.*4* %.%',,5*
-*+ to '5 -,4'* *55. -5.%'+ %.%%$*
+ to '4*% -+$.+* %.,+$4
-*$ to 45 %+$%% -,4.4, %.*,5*
-4% to %% 4% 45%.*
-'$ to % 4++%% -*,$.' 4',
-%* to ++ ,',%% *'.,+ -%.%%,4 %.%%%*$
-45 to '5 ,,'% -,. %.$4+
-$5 to %% ,4,%% 4%%.$5 -%.*+*5 %.%%*+,-$' to $,+% -5*.$4 %.%5*
-+ to 45 ,,$% 5$5+' %.+44+
-+, to +4 ,$,%$% -,*.$ 4.5%
'.,'&=%44 -% -+5 to $5 44'$,% -$., %.*+$*
5 to 4,* 4%+4% ''.,*4 %.$*+
-4+ to '' ,+%% %5.+ -4., %.%%,%4
% to 45 ,'*% 4*.+' %.+,4
-.*&-%+ 4 -,% to 5 +*%$% -45%.+ %.**+,5
,.%++&=%4' -% ' to +4 %54% ,5.
, to 4$+ '+'%% 4+4.'
-4 to ' 4,% -5%4.5 .%+
-** to +* 5',$% -%.$ %.5*
, to ,45 -,++%% 4$5.4 -4.+** %.%%4'4
-, to '+ ,,'% 4*%.4 -%.%+ %.%%,+5
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-%$ to 55,% -$%%.'5 4.$*,' -%.%%4+%4
-%.%%$+, -*+ to 445 '%'% -+4., %.*+
-5, to $* '$% ,$.,
+5%*$% -4 -4 to % 4*,*$% -'.*$ %.**,
-5, to 45 -%,4% ,44.$
-+.$5*&-%4* % % to 4% 45,5% -4%*%. $.4+ -%.%' *.,5&-%%
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Parameters for eptane Specific eat Calculation:
in 3
,,,.4
t for heptane
%.,$,4$
-*+ to 4%4 %.4%', -%.%%%4'4+4 % %
1.23-1 ariables for T)er!al Con#uctivit Calculations0
/ange; C c c4 c, c'
;;4-richloroethane -,5 to 4%* %.4%5, -4.'**5&-%'
;4-Dutadiene -, to %.4* -,.',&-%';4-Prop"lene gl"col -% to 545 %.4' -.$,'&-%'
;,-Dutadiene -%* to-' %.444, -,.'&-%'
-Dutanol -$* to * %.4, -4.%,'&-%'
-Ectanol -+ to 545 %.4' -.$,'&-%'
-Propanol -5, to 545 %.4' -.$,'&-%'
4-Dutanol -+ to %% %.445$5 -,.%545&-%'
4-Ectanol -,4 to 545 %.4' -.$,'&-%'
4-Propanol -$ to 545 %.4' -.$,'&-%'
cetic acid 5 to $ %.4' -.$,'&-%'
cetic anh"dride -5, to '% %.4,,$ -4.'4,&-%'
cetone -*+ to 5% %.4$5$ -'.45&-%'
cetonitrile -'' to 5 %.,,*4 -'.,4',&-%'
cr"lic acid , to 4 %.4''% -4.*%'&-%
ir -4%, to 545 ,.'5&-%' %.55$ -%.5 44.5
Den!ene to '% %.4,''' -,.%+54&-%'
Den!oic acid 44 to ,4, %.4,* -4.,4+&-%'
Dromoben!ene -, to 4* %.*$, -.*$&-%'
Dut"l acetate -5, to $ %.454 -4.+,&-%'
Carbon disulfide -4 to ' %.4,,, -4.5+&-%'
Carbon tetrachloride -4, to 55 %.+$* -.*$5&-%'
Chloroben!ene -'+ to ,4 %.$' -.*5&-%'
Chloroform - ' to 45 %.55$ -4.%4,&-%'
Chloromethane -*$ to 55 %.'%5 -$.'5$&-%'
Cumene -* to '% %.$++ -4.%$*+&-%'
C"clohe6ane 5 to $ %.*$, -4.+%+&-%'
C"clopentane -*' to '* %.4% -4.*&-%'
1ecane -,% to 5' %.4%, -4.+&-%'
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1ibut"l ether -*$ to 4+% %.*'$ -4.44'&-%'
1iethanol amine 4$ to '%% %.%4$ .%,+&-%, -.,++&-%
1ieth"l ether - to % %.4'*+ -'.%5&-%'
1imeth"l sulfo6ide * to * %.,'4 -,.%$%*&-%'
1iphen"l ether 45 to 4+$ %.$$ -.'*+,&-%'1odecane -% to 4 %.4%'5 -4.,4&-%'
&thanol -' to $% %.4'$ -4.'&-%'&th"l acetate -$' to 55 %.4+% -,.+,&-%'
&th"l ben!oate -,+ to 45 %.4%55 -4.4+&-%'
&th"lene gl"col -, to *5 %.%$$%5 *.'54&-%'
&th"lenediamine to 5 %.,',' -'.',,&-%'
Fluoroben!ene - ,+ to $% %.4%*4 -4.$%,'&-%'
Formamide , to 44% %.,$'5% -.%+&-%'
eptane -* to ** %.4+%% -,.%,&-%'
e6adecane $ to 4$5 %.4%5'* -4.*5&-%'
e6ane -*+ to *5 %.44'*4 -,.+,,&-%'
"dra!ine 4 to ,+% .,5+ -.+$*+&-%,
Gsoprop"l amine -*+ to ,4 %.4,5 -,.,4%&-%'
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etrah"drofuran -%$ to %.*'4$ -4.'*&-%'
oluene -*+ to 4%4 %.4%', -4.'4+4&-%'
rieth"l amine -+ to 4% %.*$ -4.'+,&-%'
Jndecane -4 to * %.4%++ -4.,*,,&-%'
Vin"l chloride -+' to 54 %.4,,, -,.*4&-%'
#ater % to ,% -%.',4% +.5,&-%, -$.%$&-%% .$&-%%*
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9imits of emperature /ange
1ensit" Viscosit" Specific eat hermal Conductivit"
-*+ ,* -*+ -*+ 445 -*+ 4%4
-, ,4* -, ' -, 45 -,5 4%*
-,5 5* -, -, 5 -, -% ,+4 -% 44$ -% $$ -% 545
-%* +4 -4, 45 -%$ 55 -%* -'
-$* 4*% $, * -$* $ -$* *
-+ 4' 5 *+ -4, *' -+ 545
-4 4' -4 *5 -4 45 -5, 545
-+ 44 -+ %% -+ ** -+ %%
-, ,+5 -,4 $% -$$ $% -,4 545
-$$ 4,+ -$$ $4 -4 $4 -$ 545
5 ,,, 5 $ 5 $ 5 $
-5, 4,+ -, '% -4, 55 -5, '%
-*+ 4,+ -$, + -*+ + -*+ 5%
-'' 45, -'' , -'' $4 -'' 5
, ,'4 , $5 , %4 , 4
% +%% -*, 545 -5, 445 -4%, 545
4$* 454 $% '%
44 '5$ 4, ,45 44 55 44 ,4,
-, ,*5 -, + 4% 444 -, 4*
-5, ,%4 -4, 4 4+ 4 -5, $
-4 45* - * -4 45* -4 '
-4, 4$, -4, $4 -4, -4, 55
-'+ ,+* -4, 45 -'+ $5 -'+ ,4
-, 4, -, $% -'% *, -' 45
-*$ , -*$ ,% -*$ %% -*$ 55
-* ,+$ -5, 45 -* +4 -* '%
5 4$ 5 5% 5 45 5 $
-, +%5 -'$ +4 - $5 -*' 5'
-4* ,'' - '$$ -4* $5 -,% 5'
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-*$ , -*$ ' -*$ 55 -*$ 4+%
4* '' 4% , 4$ 4$ 4$ '%%
- *' 5, %% 5, %% - %
* '+ * * $ % * *
45 '*' 4% ,'% 45 4*5 45 4+$-* ,$+ - 4+, -* +5 -% 4
-' 4' -5, 5 -' 5 -' $%-$, 4+% -+, 4%% -$, ,, -$' 55
-,+ '4+ -4, 4' -,' 4, -,+ 45
-, ''5 -, ,%, -, 44% -, *5
4 ,4% 4% 5 5
-'4 4$5 -' $% -,, '5 -,+ $%
, '*$ % 44% $ 44% , 44%
-*% 45 -*, +* -* 4'5 -* **
$ '+% $ 4* $ 4$5 $ 4$5
-*+ 4,+ -*$ ,, -* $5 -*+ *5
4 ,$% 4+% 4 ,$% 4 ,+%
-*+ ** -4, $% -*+ '5 -*+ ,4
+ ,$* + + + 4+5
-*$ 4'% -*$ + -*$ 45 -*$ +
-*$ 4,' -4, +4 -4% %% -*$ ,
-'$ 4*, -, 45 -'$ % -%* ++
-%$ 44' -%$ 55 -%* ++ -%* ++
-'5 4** -4 $+ -45 '5 % %
-$5 4, -$5 4, -$5 %% -$5 $%-$' ,% -$' -$' -$' 5$
-'$ ,'' -'$ '% -+ 45 -'$ '%
-+, ,4 -++ ,4% -+, +4 -+, +
-+5 4* -4 $4 -+5 $5 -+5 4
5 '4 5 4'% 5 4,* 5 4'%
-4+ ,+5 -4+ '+ -4+ '' -4+ ''
% ', % 45 % 45 % 45
-,% *5 -,% *4 -,% 5 -,% 54
' '4 $ 4$4 ' +4 ' $4
, +$ , 4$+ , 4$+ , 4$+
-4 ,4$ -4 ' -4 ' -4 45%
-** ,+ -5, +* -** +* -%% ,%
, ,', , '% , ,45 , '%
-,% ,, -,% '+ -, '+ -, '+
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-%$ 45 -%$ %% -%$ -%$
-*+ ,* -*+ -*+ 445 -*+ 4%4
-+ 44 -4, $ -5, $* -+ 4%
-4+ , -4+ 4,$ -4 % -4 *
-4+' +* -', 45 -5, 45 -+' 54
% $% % ,5, % 4% % ,%
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Iatural Convection eat ransfer Coefficient Correlations
Iatural Convection from an Gsothermal Vertical Plane - (S.G. units)
(&nter Values in "ellow cells onl")
$2&I=.C9&CU
&9TI+NS
nter t)e in#icate# in"ut #ata0
%.+% m
$reli!inar Calculations0
'%
+.'%
4.45.&=
.'$4&=4
temperature; surface temperature; or fluid pressure values
H.T.C+%%. Heat Transfer Coefficient Calculation
++5.$
,$+.$,
eight of Surface; &7
emperature 1iff;T
7o
C
Prandtl Iumber; $r7
Lrashof Iumber; Ar7
/a"leigh Iumber; a7
N+T0 Lo to the %lui# $ro"ertiesworksheet to change fluid
Iusselt Iumber; Nu7
Convective .. Coeff.; )7 #0m4-3
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Cop"right K
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'iscussion an# eferences
he definitions of the dimensionless numbers and the correlation used for Iusselt number are shown
below. For more discussion of natural convection and correlations for Iusselt Io.; see:
Perr"s Chemical &ngineers andbook; $th &d. - Sect +.,.4 Iatural Convection
http://accessengineeringlibrary.com/browse/perrys-chemical-engineers-handbook-eighth-edition/p200139d899705_7001?utm_source=HT%20Coeff%20SI&utm_medium=Excel&utm_content=Perrys%205.3.2&utm_campaign=Vertical#p200139d899705_8001http://accessengineeringlibrary.com/browse/perrys-chemical-engineers-handbook-eighth-edition/p200139d899705_7001?utm_source=HT%20Coeff%20SI&utm_medium=Excel&utm_content=Perrys%205.3.2&utm_campaign=Vertical#p200139d899705_80018/9/2019 NaturalConvectionHeatTransferCoefficients SI Units Final Protected
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Iatural Convection eat ransfer Coefficient Correla
Iatural Convection from an Gsothermal ori!ontal Plane - (S.G.
(&nter Values in "ellow cells onl")
nter t)e in#icate# in"ut #ata0
$2
&I=.C9&CU&9T
I+NS
%.%+
.4% m
$reli!inar Calculations0
'%
%.%'4
+.'%
.+4%.&=%$
$.+5+&=%$
temperature; surface temperature; or fluid pressure values
%ICINT
Heat Transfer Coefficient Calculation
Case I0 H.T. fro! u""er surface of )ot "late or fro!
lo/er surface of cool "late.
rea of Plate; 97 m4
Perimeter of Plate; $7
emperature 1iff; T7 oC
Char. 9ength;& B 98$ 7
Prandtl Iumber; $r7
Lrashof Iumber; Ar7
/a"leigh Iumber; a7
N+T0 Lo to the %lui# $ro"ertiesworksheet to change fluid
9. for 14G a G 1:0
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H9TT29NS%
2
C+
*4.'
45'.,
'4.+
'4,.+,
Case II0 H.T. fro! u""er surface of cool "late or fro!
lo/er surface of )ot "late.
'.4
.%
Cop"right K
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ions
nits)
'iscussion an# eferences
he definitions of the dimensionless numbers and the correlations used for Iussel
shown below. For more discussion of natural convection and correlations for Ius
Correlation M: (for heat transfer from the upper surface of a hot plate to a coole
or from the lower surface of a cool plate to a warmer fluid below it)
Correlation M4: (for heat transfer from the upper surface of a cool plate to a war
or from the lower surface of a warm plate to a cooler fluid below it)
Perr"s Chemical &ngineers andbook; $th &d. - Sect +.,.4 Iatural Convection
Nu B .54 a184 , 14 G a G 1:
Nu B .15 a183 , 1: G a G 111
Nu B .2: a184 , 15 G a G 11
http://accessengineeringlibrary.com/browse/perrys-chemical-engineers-handbook-eighth-edition/p200139d899705_7001?utm_source=HT%20Coeff%20SI&utm_medium=Excel&utm_content=Perrys%205.3.2&utm_campaign=HorizPlane#p200139d899705_8001http://accessengineeringlibrary.com/browse/perrys-chemical-engineers-handbook-eighth-edition/p200139d899705_7001?utm_source=HT%20Coeff%20SI&utm_medium=Excel&utm_content=Perrys%205.3.2&utm_campaign=HorizPlane#p200139d899705_80018/9/2019 NaturalConvectionHeatTransferCoefficients SI Units Final Protected
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served.
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lt number are
elt Io.; see:
fluid above it
er fluid above it
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Iatural Convection eat ransfer Coefficient Correlations
Iatural Convection from an Gsothermal ori!ontal C"linder - (S.G. units)
(&nter Values in "ellow cells onl")
$
2&I=.C9&CU&
9TI+NS nter t)e in#icate# in"ut #ata0
%.5% m
$reli!inar Calculations0
'%
+.'%
5.4%*.&=
'.%&=4
temperature; surface temperature; or fluid pressure values
H.T.C+%%. Heat Transfer Coefficient Calculation
445.
,5.,$
Pipe 1iameter; '7
emperature 1iff; T7 oC
Prandtl Iumber; $r7
Lrashof Iumber; Ar7
/a"leigh Iumber; a7
N+T0 Lo to the %lui# $ro"ertiesworksheet to change fluid
Iusselt Iumber; Nu7
Convective .. Coeff.; )7 #0m4-3
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Cop"right K
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C)urc)ill @uation
Gnitial estimate of f M/&FN
Colebrook @uation
st iteration with ColbrookO M/&FN
4nd iteration with ColbrookO M/&FN
,rd iteration with ColbrookO
'th iteration with ColbrookO
+th iteration with ColbrookO
th iteration with ColbrookO
5th iteration with ColbrookO
$th iteration with ColbrookO
*th iteration with ColbrookO
%th iteration with ColbrookO
th iteration with ColbrookO
4th iteration with ColbrookO
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'iscussion an# eferences
he definitions of the dimensionless numbers and the correlation used for Iusselt number are shown
below. For more discussion of natural convection and correlations for Iusselt Io.; see:
Perr"s Chemical &ngineers andbook; $th &d. - Sect +.,.4 Iatural Convection
http://accessengineeringlibrary.com/browse/perrys-chemical-engineers-handbook-eighth-edition/p200139d899705_7001?utm_source=HT%20Coeff%20SI&utm_medium=Excel&utm_content=Perrys%205.3.2&utm_campaign=HorizCyl#p200139d899705_8001http://accessengineeringlibrary.com/browse/perrys-chemical-engineers-handbook-eighth-edition/p200139d899705_7001?utm_source=HT%20Coeff%20SI&utm_medium=Excel&utm_content=Perrys%205.3.2&utm_campaign=HorizCyl#p200139d899705_80018/9/2019 NaturalConvectionHeatTransferCoefficients SI Units Final Protected
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.
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