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LAKSHMI NARAIN COLLEGE OF TECNOLOGY AND SCIENCE(RIT),

INDORE(An institution affiliated to Rajiv Gandhi Proudyogiki Vishwavidyalaya, Bhopal)

Estd. 2002

RECOMMENDATION

This is recommended that dissertation entitled C!Analysis of a "ingle "hell

and #u$e %eat &'hanger and !eterining the &ffet of Baffle Angle on %eat

#ransfer submitted by*anoj +uar Pandita (-./*&.0*#.)is a satisfactory

account of the bonafide work done under our supervision and is recommended

towards partial fulfillment for the award of the degree of *aster of #ehnology in

#heral &ngineering to Rajiv Gandhi Proudyogiki Vishwavidyalaya !hopal

"#$P$%$

Date:

Endorsed By:

. ..

(Head of Dea!t"e#t) Ass$st. %!of.

M!s. A & 'aa#t(%!oe*t G+$de)

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%!$#*$a

LAKSHMI NARAIN COLLEGE OF TECNOLOGY AND SCIENCE (RIT),

INDORE(An institution affiliated to Rajiv Gandhi Proudyogiki Vishwavidyalaya, Bhopal)

Estd. 2002

CERTIFICATE

The dissertation work entitled C!Analysis of a "ingle "hell and #u$e

%eat &'hanger and !eterining the &ffet of Baffle Angle on %eat #ransfer

submitted by *anoj +uar Pandita (-./*&.0*#.) is approved as

partial fulfillment for the award of the degree of*aster of #ehnologyin

#heral &ngineering by Rajiv Gandhi Proudyogiki Vishwavidyalaya,

Bhopal"#$P$%$

.....

I#te!#a E-a"$#e! E-te!#a E-a"$#e!

Date Date

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3/13

DECLARATION

I hereby declare that the work which is being presented in this dissertation

entitled 1C! Analysis of a "ingle "hell and #u$e %eat &'hanger and

!eterining the &ffet of Baffle2Angle on %eat #ransfer3in partial fulfilment

of requirements for the award of the degree of *aster of #ehnology in

T/e!"a E#$#ee!$# submitted in Mechanical Engineering Department of

LN!" #$I!% Indore& is in an authentic record of my own work carried out

under the super'ision and guidance of Ass$st. %!of. M!s. A & 'aa#t( I ha'e

not submitted the matter embodied in this report for the award of any other

degree(

I also declare that )* check for plagiarism has been carried out on the

thesis+pro,ect report+dissertation and is found within the acceptable limit and

report of which is enclosed herewith:

Ma#o K+"a! %a#d$ta S+e!1$so!

034ME35MT30

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Director/ Principal Sign. With SealCFD A#as$s of a S$#e S/e a#d T+6e Heat E-*/a#e! a#d Dete!"$#$# t/e Effe*t of

&affe A#e o# Heat T!a#sfe!

%LAGIARISM RE%ORT

S!. No. C/ate! No. S+6 C/ate! No. %a$a!$s" 7a+e O!$$#a 7a+e

CHA%TER I INTROD8CTION

- I -(- . -(/ 01 3009

CHA%TER II RE7IE: OF LITERAT8RE

2 II 2(- . 2(2 -1 ;;9

CHA%TER III THEORETICAL CONSIDERATIONS

3 III 3(- . 3(/ 21 ;29

CHA%TER I7 MATERIALS AND METHODS

/ I4 /(- . /(2 01 3009

CHA%TER 7 RES8LTS AND DISC8SSION

5 4 5(- . 5(3 01 3009

CHA%TER 7I S8MMARY AND CONCL8SIONS

6 4I None 01 3009

A1e!ae %,a$a!$s" Reo!t 0(51 ;;.


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"tamp paper

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ACKNO:LEDGEMENTS

ompleting a task is ne'er one7man effort( It is often the result of 'aluable

contribution of number of indi'iduals in direct or indirect manner that helps in

shaping and achie'ing an ob,ecti'e(

!his is to acknowledge that this thesis completed successfully with the help

and inputs from my super'isor Ass$st. %!of. A & 'aa#t& and 8rincipal LN!9 " #$I!% Indore& for guiding me and showing the path& whene'er I was in

difficulty( is direction& super'ision and constructi'e criticism were indeed

the source of inspiration for me(

I am deeply indebted toS/!$ S+!a6/at C/o+=se, Managing Director and

D!. A. K. S$#/a& ;roup *cademic *d'isor& and $egistrar& LN! Indore& for

allowing me to pursue for Master of !echnology 8rogram( !heir blessing is

the most important strength which has enlightened not only my path towards

success& but also ser'es as a source of inspiration to all the students of LN!

group(

I sincerely feel grateful to all my tea*/e!swho taught me( I am thankful to all

the faculty members of Lakshmi Narain ollege of !echnology Indore,who

helped me from time to time in pro'iding facilities and support( I thank my

a!e#ts and all the fa"$ "e"6e!s for their support and encouragement

throughout my pro,ect work(

8lace: Indore Mano, ME-3M!-0

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8#$1e!s$t !aat!a

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List of !ables

List of !ables 8agno26

!able no /(- ;eometric dimensions of shell and tube heat e?changer

!able no *nsys @luent commands 30

!able no 5(-0 !heoretical calculations /5!able no 5(--(/ @D alculations /A

!able6(- eat @lu? in Different Baffle 8rofiles 62

!able6(- eat @lu? in Different Baffle 8rofiles 62

!able 6(3 $esult comparison 63

L$st of f$+!es

List of @igures 8agNo

-3

2(2 !ypes of "egmental baffle

3(- 8arallel flow heat e?changers

->

3(2 ounter flow heat e?changers -=

3(3 ross flow heat e?changer -A

3(/ oncentric tubes

20

@ig 5(- !ypes of fluid flow simulation for a shell and tube e?changer 32

@ig 5(6 Design intent in sketch for modal 35

@ig 5(> ommand selection in design for modal

@ig 5(= Meshing of modal

@ig 5(--(-Heat@lu? for eat e?changer with 7/5 degree Baffle

@ig 5(--(2Heat@lu? for eat e?changer with 7/5 degree Baffle6(3!he result #Boundary

and heat flu? sensible% for /5 degree

36

3>

/6

/>

/=8


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@ig(5(--(2Heat@lu? for eat e?changer with 0 degree Baffle

@ig 5(--(3 eat @lu? for eat e?changer with /5 degree Baffle

eat @lu? for 7/5 degree Baffle inclination

@ig 5(-2 "chematic diagram of thermal power plant

@ig 5(-3 ;eneral arrangement of an E"8

/A

5-

53

L$st of A66!e1$at$o#s>No"e#*at+!e

L eat e?changer length

Di "hell inner diameter&

Do !ube outer diameter

Nt Number of tubes&

Nb Number of baffles(

B entral baffle spacing&

C Baffle inclination angle

Bc Baffle cut

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L$st of S"6os

;reek symbols like alpha beta delta etc(

&ymbol 'efinition

Difference

Nu $elati'e error in Nusselt number calculation or e'aluation

! $elati'e error in static temperature calculation or e'aluation


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A&STRACT

In current days& shell and tube heat e?changer is the most common type heat e?changer widely

used in oil refinery and other large chemical process& because it suits higher pressure application(

!he purpose of the pro,ect is @D analysis of a single shell and single tube heat e?changer and

formati'e the effect of baffle angle on heat transfer temperature using *N"Q" software tool("o

attempts were made to e?amine the impacts of 'arious baffle inclination angles on fluid stream

and the heat transfer characteristics of a shell7and7tube heat e?changer for three different baffle

plateRs inclination angles namely 0S& /5S and 7/5S(

!he results for shell and tube heat e?changers& one with segmental baffles

perpendicular to fluid stream and two with segmental baffles inclined to the direction of fluid

flow are compared for their performance( !he results are obser'ed to be responsi'e to the baffle

angles( !he steady state heat transfer rate was found to be more in the case of /5 degrees as

compared to the 7/5 degrees( !he heat flu? is ma?imum in /5 degrees baffle angle and

minimum in case of 7/5 degree baffle angle( !his is physically correct because in /5 degree the

hot fluid which is in the shell side and abo'e tube is directed towards the tube which promotes

the flow and thus increasing the heat transfer rate( In case of 7/5 degrees the baffles opposes the

hot fluid in the shell area and abo'e the tube& destructs and opposes the flow and hence the heat

transfer rate is reduced( !he 0 degrees baffles angle lies in intermediate of the /5 degree and

7/5 degree(

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