It project on pin fin,, the expended surface of the the material which increase the rate of heat transfer,, in this presentation experimental value of iron rod fin, RAJU RANJAN KUMAR ST MARY'S TECHNICAL CAMPUS KOLKATA GUIDANCE BY- mr. SUDIP CHAKRABORTY (ASSIS. I PROFESSOR)MECHANICAL DEPARTMENT,

1. ST. MARY'S TECHNICAL CAMPUS KOLKATA
HEAT TRANSFER FROM A PIN FIN APPARATUS
OF
B.TECH
IN
MECHANICAL ENGINEERING
SUBMMITED BY
BAJRANG THAKUR-28600715012
RAJU RANJAN KUMAR -28600715066
ROHIT KUMAR RAJ-28600715077
UNDER THE GUIDANCE OF
SUDIP CHAKRABORTY (ASSI. PROFESSOR)
ST. MARY'S TECHNICAL CAMPUS KOLKATA

2. HEAT TRANSFER
HEAT TRANSFER IS A DISCIPLINE OF THERMAL
ENGINEERING THAT CONCERNS THE GENERATION
,USE,CONVERSION,AND EXCHANGE OF THERMAL
ENERGY BETWEEN PHYSICAL SYSTEMS.HEAT
TRANSFER ISCLASSIFIED INTO VARIOUS
MECHANISMS,SUCH AS THERMAL
CONVECTION,THERMAL RADIATION,AND TRANSFER OF
ENERGY BY PHASE CHNAGE AND ALSO HEAT TRANSFER
IS THE PROCESS OF TRANSFER OF HEAT FROM HIGH
TEMPERATURE RESERVOIR TO LOW TEMPERATURE
RESERVOIR.

3. HEAT TRANSFER FROM A PIN FIN APPARATUS
 IN THE EXPERIMENT BASICALLY
DEALS ABOUT THE HEAT
TRANSFER CO-EFFICIENT RATE
BY CONVECTION OF FIN
MATERIAL. DUE TO THIS
EXPERIMENT-WE DONE FOR
DIFFERENT MATERIAL AND ITS
HEAT TRANSFER CO-EFFICIENT
RATE.
 THE MATERIALS ARE :-
1. IRON ROD
2. ALLUMINIUM ROD
3. COPPER ROD

4. THE COMPONENTS USE IN THIS
EXPERIMENT
1. IRON ROD
2. ALLUMINIUM ROD
3. THERMO CUPLE

5. THE COMPONENTS USE IN THIS EXPERIMENT
SPEED- 13000 r/min
POWER- 600 watts
CAPACITY- 230 v-50 Hz

6. WORKING PRINCIPLE
IN MANY ENGINEERING APPLICATION,LARGE
QUALITIES OF HEAT HAVE TO BE DISSIPATED FROM
SMALL AREAS.
THE FINS INCREASES THE EFFECTIVE AREA OF THE
SURFACE THEREBY INCREASING THE HEAT TRANSFER
BY CONVECTION.
IN OTHER WORDS,THE SHAPE OF FINS MUST BE
OPTIMZED SUCH THAT HEAT TRANSFER DENSITY IS
MIXIMIZED WHEN THE SPACE AND THE MATERIALS
USED FOR THE FINNED SURFACE ARE CONSTRAINTS.

7. TYPES OF FINS
STRAIGHT FIN
<----- OF UNIFORM
CROSS
SECTION
STRAIGHT FIN
<----- OF
NONUNIFORM
CROSS
SECTION
ANNULAR FIN
PIN FIN

8. EXPERIMENMTAL VALUE OF IRON ROD IN SENCE OF
REYNOLDS NO. OR NUSSELT NO.
TEMPERATURE VOLTS AMPEAR
188.8 220 0.3
190.8 “ 0.3
192.8 “ 0.3
194.8 “ 0.3
196.8 “ 0.3
T AVG.= 806.56.C 0.3

9. REYNOLDS NUMBER
Re = (1.2*1000*14.5*0.001) (2.0*105)
= 870,000
TURBULENT FLOW.
FOR CALCULATION
NUSSELTS NO. COMES
UNDER Re>2300.

10. FOR ALLUMINIUM ROD :-

11. ADVANTAGE :-
BY USING THE FINS, HEAT TRANSFER RATE
CAN BE INCREASED WITHOUT ANY
PRENVENTIVE MAINTANENANCE.IT IS THE
CHEAPEST WAY FOR INCREASING THE HEAT
TRANFERRING RATE FROM THE HOT
BODIES.DISADVANTAGE :-
WE KNOW THAT THE LENGTH OF FINS IS
DIRECTLY PROPOTIONAL TO THE HEAT
TRANSFERRING RATE,BUT THE LARGER LENGTH
IS MAY BE CAUSE OF BENDING IN THE FINS AND
ALSO INCREASES THE WEIGHT OF ENGINE.

12. TYPES BY DESIGN
 THE FIN ARE DESIGNED AND MANUFACTUREF IN
MANY SHAPES AND FORMS.
 THEY MANUFACTURED IN DIFFERENT
GEOMETRIES,DEPENDING UPON THE PRACTICAL
APPLICATIONS.
 THE RIBSATTACHED ALONG THE LENGTH OF A
TUBES ARE CALLED LONGITUDINAL FINS.
 THE CONCENTRIC ANNULAR DISC AROUND A
TUBE ARE TERMED AS CIRCULAR OR ANNULAR
FINS.

13. APPLICATION OF FIN
 COOLING OF ELCTRICS COMPONENTS
 CONDENSORS AND ECONO MISERS OF
THERMAL POWER PLANT.
 DRY TYPE COOLING TOWERS.
 AIR COOLED CYLINDER OF
COMPRESSION,IC ENGINES
 ELECTIC MOTOR AND TRNASFERS.

14. FUTURE SCOPE
 NOW A DAYS PIN FIN USED FOR THE
BETTERMENT CHIMNY.
 THE PROBLEM IS SOLVED ASSUMED PLATE
FIN.PIN FIN AS BASED AS ISOTHERMAL SURFACE.
 IT USED 3D MODEL WITH 3D BOUNDARY
CONDITION.
 THE HEIGHT IS FLOW IS SELECTED AS 10 TIME
THE FIN HEIGHT AND USE OF 0.3 M CELL COUNT
WITH APPROPRIATE GRADING IS FOUNF
APPROPRIATE.

15. DESIGN BY
RAJU