THERMO MECHANICAL ANALYSIS OF ENGINE CYLINDER seminar copy 2.pptx
- 1. Comparative Analysis of Engine Cylinder Through Design Modification Using Catia V5 & Ansys By Dr.K. Mallikarjuna Professor and Head, Dept of Mech. Engineering, G. Pullaiah college of Engineering and Technology, Kurnool, AP, India
- 2. The Engine cylinder is one of the major automobIile components, which is subjected to high temperature variations and thermal stresses. The main aim of the paper is to analyze the thermal properties by varying geometry of cylinder fins, material. The models are created by varying the geometry circular and also by varying thickness of the fins for both geometries using CATIA V5 software. Thermal analysis is done on the cylinder fins to determine variation of temperature distribution over time using ANSYS 14.5. Globally it is observed that, the material used for cylinder fin body is Cast Iron. In this paper, authors made an attempt to change the material of cylinder fins by choosing Copper and Aluminum alloy 6082. Further, a comparative analysis is made between geometries before and after modification. Finally it is concluded that effectiveness of fins over engine cylinder after modification with draft is higher than the effectiveness of engine cylinder ABSTRACT
- 3. Engine cylinder The internal combustion engine is an engine in which the combustion of a fuel (normally a fossil fuel) occurs with an oxidizer (usually air) in a combustion chamber. In an internal combustion engine, the expansion of the high-temperature and -pressure gases produced by combustion applies direct force to some component of the engine, such as pistons, or a nozzle. This force moves the component over a distance, generating useful mechanical energy
- 4. NECESSITY OF COOLING SYSTEM IN IC ENGINES It has been practically found that out of total heat generated by internal combustion engine due to combustion of fuel, only 30% of heat is converted in useful workout of remaining 70% about 40 % is carried by exhaust gases into the atmosphere during exhaust stroke. The rest of 30% must be passed to atmosphere by some suitable arrangement
- 5. METHODS OF COOLING SYSTEMS Cooling system are used to reduce the temperature of engine These are classified into two types i.e.. AIR COOLING SYSTEM WATER COOLING SYSTEM
- 6. AIR-COOLING Cars and trucks using direct air cooling (without an intermediate liquid) were built over a long period beginning with the advent of mass produced passenger cars and ending with a small and generally unrecognized technical change. Before World War II, water cooled cars and trucks routinely overheated while climbing mountain roads, creating geysers of boiling cooling water. This was considered normal, and at the time, most noted mountain roads had auto repair shops to minister to overheating engines.
- 7. LIQUID COOLING Liquid cooling is also employed in maritime vehicles (vessels, ...). For vessels, the seawater itself is mostly used for cooling. In some cases, chemical coolants are also employed (in closed systems) or they are mixed with seawater cooling. Fully closed IC engine Open IC engine cooling system Semi closed IC engine cooling system
- 8. 1. Mallikarjuna Naraga., Babu Uppalapti.: Design Optimization and Stress Analysis of Multicylinder Diesel Engine Crankshaft. International Journal of Innovative Research in Science, Engineering and Technology. Vol. 5, Issue 6, June 2016 2. Dnyandeep K. Rupesh Tiwari.: Optimization and Fatigue Analysis of Modified Connecting Rod Using FEA Tool. International Journal of Electronics, Communication & Soft Computing Science and Engineering ISSN: 2277-9477, Volume 3, Issue 5 3. Venkata Rajam.C , Murthy.P.V.K: Design Analysis and Optimization of Piston using CATIA and ANSYS Tool. International Journal of Innovative Research in Engineering & Science . January 2013, issue 2 volume 1 4. Isam Jasim Jaber and Ajeet Kumar Ra.: “ Design and Analysis of I.C. Engine piston and piston-ring using Catia and Ansys software” Volume 5, Issue 2, February (2014), pp. 64-73. LITERATURESURVEY
- 9. Problem Description The main aim of the paper is to design cylinder with fins for Passion Plus 100cc engine, by changing the geometry, distance between the fins and thickness of the fins by analyzing the fin body with other materials and to analyze the thermal properties of the fins. Geometry of fins – Original model and Modified Model Thickness of fins – 1.0 mm and Distance between the fins for combustion side 7.89mm and for opp side 4.23 mm For Original model - Thickness of fins – 1.5mm and Distance between the fins for combustion side 9.65mm and for opt side 4.23 mm Materials – Cast Iron, Copper and Aluminum alloy 6082
- 10. STEPS INVOLVED MODELING THERMALANALYSIS For modeling of the fin body, we have used CatiaV.5 ,which is a parametric 3D modeling software. For analysis we have used ANSYS, which is a FEA software.
- 11. INTRODUCTION TO CATIA V5 CATIA (Computer AidedThree-dimensional Interactive Application) is a multi- platformCAD/CAM/CAE commercial software suite developed by the French company Dassault Systèmes directed by Bernard Charlès.Written in the C++ programming language, CATIA is the cornerstone of the Dassault Systèmes software suite. CatiaV5 introduced at 1998, version R17
- 12. CATIA V5 TOOL BARS The toolbars available in the catia part design are:- Standard . Operations Workbench . Sketcher View . Sketch tools Graphic properties . Visualization Constraint . Select Measure . Profile CATIA default window
- 13. DESIGNING OF CYLINDER Design of engine cylinder
- 14. Cylinder with curved fins
- 15. detailed view of cylinder with curved fins
- 16. CATIA Model of modified Engine Cylinder without draft
- 17. Catiya model of modified engine cylinder with draft
- 18. MODIFIED MODEL WITHOUT DRAFT MESHED MODEL MODIFIED MODEL RESULTS NODALTEMPERATURE TEMPERATURE DISTRIBUTION
- 19. MODIFIED MODELWITH DRAFT MODIFIED MODEL WITHOUT DRAFT MESHED MODEL MODIFIED MODEL RESULTS NODALTEMPERATURE TEMPERATURE DISTRIBUTION
- 20. The shape of the cylinder fin body is modified and proven analytically that it can be used. But more experiments have to be done on that modified model to check the feasibility of the arrangement in the two wheeler. Since the shape of the fins of modified model is curved, the cost for manufacturing is also to be considered. Since to manufacture this model, if the cost is very high, it is not preferable since it may increase the cost of two wheeler.
- 21. EFFECTIVENESS OF FIN S.No Model Materials Aluminum Copper Cast iron 1 Original model fin 1.67 1.60 1.58 2 modified model fin without draft 1.81 1.70 1.63 3 modified model fin with draft 1.89 1.75 1.68
- 22. Original model fin -- -- modified model fin without draft -- -- -- modified model fin with draft 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 comparison of Effectiveness for different engine models with different materials EFFECTIVENESS DIFFERENT ENGINE MODELS WITH DIFFERENT MATERIALS ALIMINIUM COPPER CAST IRON
- 23. CONCLUSION In this paper, a cylinder fin body for Passion Plus 100cc motorcycle is modeled using parametric software Catia V5. The original model is changed by changing the geometry of the fin body, distance between the fins and thickness of the fins From plots it is found that,the effectiveness of fin with draft after modification is more than before modification and after modification without draft for aluminium when compare with copper and cast iron this is to be considered for design of engine cylinder . By observing the thermal analysis results, thermal flux is more for Aluminum alloy than other two materials and also by using Aluminum alloy its weight is less, so using of Aluminum alloy 6082 is better
- 24. ANY…?