naturalconvectionheattransfercoefficients si units final protected

8/9/2019 NaturalConvectionHeatTransferCoefficients SI Units Final Protected

1/44

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


3/44

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



4/44

%&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.




5/44

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-)


6/44

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


7/44

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_1001


8/44

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$4$


9/44

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


10/44

4 - )

this section.

.


11/44

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'


12/44

+$'. %.4**,4 ,%.44$ -*$ 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%


13/44

+'%.+ %.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:


14/44


15/44

-%.%%$+, -*+ 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


16/44

-*$ 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


17/44

-%$ 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&-%%


18/44


19/44

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.+&-%'


20/44

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 %.,',' -'.',,&-%'

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eptane -* to ** %.4+%% -,.%,&-%'

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e6ane -*+ to *5 %.44'*4 -,.+,,&-%'

"dra!ine 4 to ,+% .,5+ -.+$*+&-%,

Gsoprop"l amine -*+ to ,4 %.4,5 -,.,4%&-%'


21/44

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,&-%, -$.%$&-%% .$&-%%*


22/44


23/44

9imits of emperature /ange

1ensit" Viscosit" Specific eat hermal Conductivit"

-*+ ,* -*+ -*+ 445 -*+ 4%4

-, ,4* -, ' -, 45 -,5 4%*

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-$$ 4,+ -$$ $4 -4 $4 -$ 545

5 ,,, 5 $ 5 $ 5 $

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24/44

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25/44

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26/44


27/44

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


28/44

Cop"right K


29/44

'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_8001


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32/44


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Iatural Convection eat ransfer Coefficient Correla

Iatural Convection from an Gsothermal ori!ontal Plane - (S.G.


nter t)e in#icate# in"ut #ata0

$2

&I=.C9&CU&9T

I+NS

%.%+

.4% m


'%

%.%'4

+.'%

.+4%.&=%$

$.+5+&=%$


%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


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


35/44

ions

nits)


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)


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_8001


36/44

served.


37/44

lt number are

elt Io.; see:

fluid above it

er fluid above it


38/44


39/44

Iatural Convection eat ransfer Coefficient Correlations

Iatural Convection from an Gsothermal ori!ontal C"linder - (S.G. units)


$

2&I=.C9&CU&

9TI+NS nter t)e in#icate# in"ut #ata0

%.5% m


'%

+.'%

5.4%*.&=

'.%&=4


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


Iusselt Iumber; Nu7

Convective .. Coeff.; )7 #0m4-3


40/44

Cop"right K


41/44

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


42/44


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:

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_8001


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.


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naturalconvectionheattransfercoefficients si units final protected

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