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A PROJECT REPORT ON
“WORKING MODEL OF STIRLING ENGINE”
SUBMITED BY :
VISHAL V. PATEL (110750119018)
HARSHAD B. PATEL (1107...
CONTENTS
 ABSTRACT……………………………………..1
 INTRODUCTION………………………………3
 LITERATURE REVIEW………………………6
 METHODOLOGY……………………………......
ABSTRACT
1
ABSTRACT
Worldwide attempts are being made to increase
the use of our renewable energy sources as well as to use our
curre...
INTRODUCTION
3
HISTORY
The Stirling Engine is one
of the hot air engines. It was
invented by Robert Stirling
(1790-1878) and his brother
...
DIFFERENT TYPES
Alpha Stirling Engine Gamma Stirling Engine
Beta Stirling Engine
5
LITERATURE REVIEW
6
 Author: DaWei Tanga, Zhigang Lia 20 July 2011
 Title : Development and test of a Stirling
engine driven by waste gases ...
 Author: Halit Karabuluta, Hüseyin Serdar 30
October 2007
 Title : An experimental study on the development of
b-type St...
 Author: Chin-Hsiang Cheng 6 April 2010
 Title Dynamic simulation of a beta-type Stirling engine
with cam-drive mechanis...
METHODOLOGY
10
STIRLING CYCLE
 1-2: constant volume
process
 2-3: isothermal
expansion process
 3-4: constant volume
process
 4-1: is...
CYCLE EFFICIENCY
 Net work, Wnet = Wexp + Wcomp
 Net work, Qtotal = Qheat + Qexp
Recovered mechanical energy :
 Wnet = ...
Provided heat :
Qexp = ∫exp PdV
Qexp = nR Tmax ln(Vmax / Vmin )
Qheat = nCv (Tmax - Tmin)
Qtotal = nCv (Tmax - Tmin) + nR ...
SETUP AND PREPARATION
14
ASSEMBLY DRAWING
15
: Assembly drawing
FABRICATION DRAWING
16Cylinder fabrication drawing
17
Clamp fabrication drawing
Crank wheel
FABRICATION AND ASSEMBLY
 Cylinder
 Material: Steel
 Manufacturing
process: Turning in
CNC Machine and Facing
in lath m...
 Fly Wheel :-
 Material: Plastic
 Importance : Provide
potation energy during no
load stock.
 Support Stud
 Material:...
PISTON, DISPLACER, GLASS CYLINDER
 Material: Aluminum
alloy and Glass
 Manufacturing
process : Using CNC
20
Hot Size Cha...
 Assembly Section View  Disassembly
21Assembly Section View Assembly Section View
3-D MODEL OF STIRLING ENGINE :
223D model of Actual machine
FABRICATION ASSEMBLY:
23
Stirling Engine
CONCLUSION
24
 The lack of pressurization may also be an opportunity
to improve the engine. Most successful Stirling
engines in our res...
REFERENCES
 [1] Institute of Engineering Thermo physics, Chinese
Academy of Sciences, No. 11, BeiSiHuanXi Road, Beijing
1...
THANK YOU
27
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stirling engine ppt

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working model of stirling engine

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stirling engine ppt

  1. 1. A PROJECT REPORT ON “WORKING MODEL OF STIRLING ENGINE” SUBMITED BY : VISHAL V. PATEL (110750119018) HARSHAD B. PATEL (110750119001) RITESH V. PATEL (110750119024) PIYUSH J. PATEL (110750119026) GUIDED BY UMANG R. PATEL SHANKERSINH VAGHELA BAPU INSTITUTE OF TECHNOLOGY
  2. 2. CONTENTS  ABSTRACT……………………………………..1  INTRODUCTION………………………………3  LITERATURE REVIEW………………………6  METHODOLOGY……………………………...10  SETUPAND PREPARATION………………....14  CONCLUSION………………………………….24
  3. 3. ABSTRACT 1
  4. 4. ABSTRACT Worldwide attempts are being made to increase the use of our renewable energy sources as well as to use our current fossil fuel energy sources more efficiently. Waste heat recovery forms a substantial part of the latter and is the focus of this project. The aim of this project was to design, build, and review of Stirling engine capable of generating power. This project provided a great opportunity to gain experience with mechanical design, manufacturing, and the fundamentals of Stirling engines. We applied our knowledge of thermodynamics to the design of the engine, and developed formulas to predict its power output at different temperature differentials. 2
  5. 5. INTRODUCTION 3
  6. 6. HISTORY The Stirling Engine is one of the hot air engines. It was invented by Robert Stirling (1790-1878) and his brother James. His father was interesting in engine and he inherited it. He became a minister of the church at Scotland in 1816. At this period, he found the steam engines are dangerous for the workers. He decided to improve the design of an existing air engine. He hope it wound be safer alternative. Robert Stirling Earlier Stirling Engine 4
  7. 7. DIFFERENT TYPES Alpha Stirling Engine Gamma Stirling Engine Beta Stirling Engine 5
  8. 8. LITERATURE REVIEW 6
  9. 9.  Author: DaWei Tanga, Zhigang Lia 20 July 2011  Title : Development and test of a Stirling engine driven by waste gases for the micro-CHP system.  Remark : The test results confirm the fact that Stirling engines driven by mid-high temperature waste gases are able to achieve a valuable output power for engineering application. 7
  10. 10.  Author: Halit Karabuluta, Hüseyin Serdar 30 October 2007  Title : An experimental study on the development of b-type Stirling engine for low and moderate temperature heat sources  Remark : Experimental results presented in this paper were obtained by testing the engine with air as working fluid. The hot end of the displacer cylinder was heated with a LPG flame and kept about 200 C constant temperature throughout the testing period. 8
  11. 11.  Author: Chin-Hsiang Cheng 6 April 2010  Title Dynamic simulation of a beta-type Stirling engine with cam-drive mechanism via the combination of the thermodynamic and dynamic models.  Remark . An extensive parametric study of the effects of different operating and geometrical parameters has been performed, and results regarding the effects of mass moment of inertia of the flywheel, initial rotational speed, initial charged pressure, phase angle, gap size, displacer length, and piston stroke are investigated. 9
  12. 12. METHODOLOGY 10
  13. 13. STIRLING CYCLE  1-2: constant volume process  2-3: isothermal expansion process  3-4: constant volume process  4-1: isothermal compression process P-V diagram 11
  14. 14. CYCLE EFFICIENCY  Net work, Wnet = Wexp + Wcomp  Net work, Qtotal = Qheat + Qexp Recovered mechanical energy :  Wnet = Wexp + Wcomp  Wnet = ∫exp PdV + ∫comp PdV (P = nRT / V)  Wnet = ∫exp (nRTmax / V) dV+ ∫comp (nRTmin / V) dV  Wnet = nR (Tmax - Tmin) ln (Vmax / Vmin) 12
  15. 15. Provided heat : Qexp = ∫exp PdV Qexp = nR Tmax ln(Vmax / Vmin ) Qheat = nCv (Tmax - Tmin) Qtotal = nCv (Tmax - Tmin) + nR Tmax ln (Vmax / Vmin) Cycle efficiency : η = [R (Tmax - Tmin) ln (Vmax / Vmin)] / [Cv (Tmax - Tmin) + R Tmax ln (Vmax / Vmin)] 13
  16. 16. SETUP AND PREPARATION 14
  17. 17. ASSEMBLY DRAWING 15 : Assembly drawing
  18. 18. FABRICATION DRAWING 16Cylinder fabrication drawing
  19. 19. 17 Clamp fabrication drawing Crank wheel
  20. 20. FABRICATION AND ASSEMBLY  Cylinder  Material: Steel  Manufacturing process: Turning in CNC Machine and Facing in lath machine.  Importance : The piston and displace work base on this portion. Another parts are also attached to this part. 18Cool Size Chamber
  21. 21.  Fly Wheel :-  Material: Plastic  Importance : Provide potation energy during no load stock.  Support Stud  Material: Brass  Importance :  Cylinder, flywheel, bearing all are mounting using this stud provide rigidity. 19 Fly Wheel Pivot Mount
  22. 22. PISTON, DISPLACER, GLASS CYLINDER  Material: Aluminum alloy and Glass  Manufacturing process : Using CNC 20 Hot Size Chamber Piston Displacer
  23. 23.  Assembly Section View  Disassembly 21Assembly Section View Assembly Section View
  24. 24. 3-D MODEL OF STIRLING ENGINE : 223D model of Actual machine
  25. 25. FABRICATION ASSEMBLY: 23 Stirling Engine
  26. 26. CONCLUSION 24
  27. 27.  The lack of pressurization may also be an opportunity to improve the engine. Most successful Stirling engines in our research were pressurized to some extent. Currently there are leakage issues on the hot side preventing pressurization, and more may become apparent as pressure is increased  Several problems remain to be addressed within the engine. First among them is the overall lack of useful work output by the engine. Most of the work is being absorbed by the friction of the crankshaft and piston linkages, and possibly by inferior bearings. Further inspection of the compressor block is recommended to isolate and rectify these problems. 25
  28. 28. REFERENCES  [1] Institute of Engineering Thermo physics, Chinese Academy of Sciences, No. 11, BeiSiHuanXi Road, Beijing 100190, China Beijing ShiYanTianQiang Technology ompany, Beijing 100076, Chin Received 20 July 2011  [2] Department of Mechanical Technology, Faculty of Technical Education, Gazi University, 06500 Teknikokullar, Ankara, Turkey,( Received 30 October 2007)  [3] Department of Mechanical Technology, Faculty of Technical Education, Gazi University, Besevler, 06500, Ankara, Turkey Received 16 July 2007,  [4]. Wikipedia free encyclopedia. Stirling engine, www.wikipedia.org/wiki/stirlin-engine, (02/18/2009)  [5] stirling cycle efficiency http://www.robertstirlingengine.com/alpha_uk.php 26
  29. 29. THANK YOU 27

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