International Journal of Research and Innovation (IJRI)
International Journal of Research and Innovation (IJRI) 1401-1402
THERMAL ANALYSIS OF INTERNAL COMBUSTION DIESEL ENGINE EXHAUST VALVE FOR THE EVALUATION OF WELD COMPATIBILITY
Desamsetti. Harikesava1, NS Maruthy Vijay Sripada2,S.N.CH.Dattu.V3 1 Research Scholar,Department of Thermal Engineering, Aditya Engineering College, Surampalem, Andra Pradesh, India. 2 Assistant Professor,Department of Mechanical Engineering, Aditya Engineering College, Surampalem, Andra Pradesh, India. 3 Assistant Professor ,Department of Mechanical Engineering, Aditya Engineering College, Surampalem, Andra Pradesh, India.
Abstract The present project work is forced on different failure modes at the joint of valve seating and stem of internal combustion engine valves and improvement of joint by involving new welding process. In this two materials and three types of weld process are involved to suggest optimum material and weld process, and also evaluation will be done to suggest best coating material. Failures due to fatigue, high temperature effects, and Failures due to impact load that depends on load and time. Couple –field, fatigue and transient analysis will be done on valves and valve with coating to determine structural, fatigue and thermal behavior to find out results in working condition. Best weld process will be suggested by conducting analysis on valve with joint with the change in weld process.
*Corresponding Author:
ing coatings on surface.
Desamsetti. Harikesava Research Scholar,Department of Thermal Engineering, Aditya Engineering College, Surampalem, Andra Pradesh, India.
Fatigue cycles 1e7 *5000 cycles as a single cycle. INTRODUCTION TO IC ENGINE VALVE
Published: November 16, 2015 Review Type: peer reviewed Volume: II, Issue : III Citation:Desamsetti. Harikesava, THERMAL ANALYSIS OF INTERNAL COMBUSTION DIESEL ENGINE EXHAUST VALVE FOR THE EVALUATION OF WELD COMPATIBILITY
PROBLEM DISCRIPTION In this project a diesel engine puppet valve is evaluated by varying material and welding process to join seat and stem. Effect of coating material will be taken in to account in analysis work. METHODOLOGY There are Different methodologies used by researchers to obtain a good design and economic performance of the valves by considering different valves failure criteria. Different types of failure and their causes are discussed in the following articles.
Function of Exhaust valve: exhaust valve works as doors for the ports, these ports are used to escape burnt gases from the cylinder through ports to atmosphere. VALVE DIMENSIONS:
Failure due to fatigue: Transient structural and thermal analysis will be conducted to determine structural and thermal defects individually, coupled field and fatigue analysis will be conducted to determine stress, deflection, strain, life, fatigue sensitivity and damage/error in combination both conditions at 5000 cycles as a single cycle. Above analysis will be done by varying materials, welds process and by add53
International Journal of Research and Innovation (IJRI)
Working Requirements for ExhaustValves a) Allow gases go out of the engine b) Seal the port without leak for remaining period c) Strength to with stand high temperatures d) Resistance to wear at the mating surfaces e) Good sliding surface for seizure resistance INTRODUCTION TO CREO CREO is the industry’s standard 3D mechanical design suit. It is the world’s leading “CAD/CAM /CAE software, gives a broad range of integrated solutions to cover all aspects of product design and manufacturing. Much of its success can be attributed to its technology which spurs its customer’s to more quickly and consistently innovate a new robust, parametric, feature based model, because the Pro/E technology is unmatched in this field, in all processes, in all countries, in all kind of companies along the supply chains.
Above placed image is showing meshed model
MODEL OF VALVE
Above placed image is showing load applied
Above placed image is showing valve model
Above placed image is showing temperature
Above placed image is showing assembly of seat and stem
INTRODUCTION TO ANSYS TRANSIENT THERMAL ANALYSIS OF EXHAUST VALVE Material: nickel chromium steel
Above placed image is showing total heat flux
Above placed image is showing imported model
54
International Journal of Research and Innovation (IJRI)
COUPLED FIELD ANALYSIS OF EXHAUST VALVE
TRANSIENT THERMAL ANALYSIS OF EXHAUST VALVE
Material: nickel chromium steel
Material: titanium
Above placed image is showing total deformation
Above placed image is showing temperature
Above placed image is showing total heat flux Above placed image is showing stress
COUPLED FIELD ANALYSIS OF EXHAUST VALVE Material: titanium
Above placed image is showing safety factor Above placed image is showing total deformation
55
International Journal of Research and Innovation (IJRI)
COUPLED FIELD ANALYSIS OF EXHAUST VALVE Material: INCONCAL-X751
Above placed image is showing stress
TRANSIENT THERMAL ANALYSIS OF EXHAUST VALVE
Above placed image is showing total deformation
Material: INCONCAL-X751
Above placed image is showing stress Above placed image is showing temperature
TRANSIENT THERMAL VALVE WITH WELDING
ANALYSIS
OF
EXHAUST
Material: INCONAL-X751
Above placed image is showing total heat flux
Above placed image is showing temperature
56
International Journal of Research and Innovation (IJRI)
Above placed image is showing total heat flux
Above placed image is showing total heat flux
TRANSIENT THERMAL ANALYSIS OF EXHAUST VALVE WITH FSW AND COATING
RESULT GRAPHS
MATERIAL: INCONAL-X751
TRANSIENT THERMAL ANALYSIS OF EXHAUST VALVE
COATING MATERIAL: CERAMIC
Above placed image is showing meshed model
Above placed image is showing temperature
57
International Journal of Research and Innovation (IJRI)
TRANSIENT THERMAL ANALYSIS OF EXHAUST VALVE WITH WELDING,EB WELDING AND FSW
COUPLED FIELD ANALYSIS OF EXHAUST VALVE
58
International Journal of Research and Innovation (IJRI)
als, latest weld technology and coatings to restrict the temperature effect on valve. In the next stage modeling and assembly of valve seat and stem is prepared to conduct further work in ansys Transient thermal analysis is conducted on exhaust valve using nickel chrome steel, titanium and inconcal with the time history process at 5000 cycles, as per the analysis results inconcal is having total heat flux of 16.009 w/mm2 ,coupled field analysis is conducted with above conditions to evaluate stress and deformation values at combinational load conditions as per the analysis results stress value is low for titanium ,while considering ultimate yield strength of deformation and strain values inconcal is showing good characteristics. So better to use inconcal. Transient thermal and coupled field analysis is done on exhaust value using inconcal material with the variation of weld process(fusion welding, EB welding and FSW welding) as per the analysis results friction steel welding is the best process to join value seat and stem. Transient thermal analysis is done on exhaust value by varying coating materials chromium (present material) and ceramic (partially stabilized zerconium) as per the analysis results ceramic is completely restricting the temperature transfer through the valve. to reduce the thermal effect on valve better to use inconcal with ceramic coating ,and to improve the thermal and structural abilities better to use frictional stir welding. REFERENCES Combating Automotive Engine Valve Recession By Roger Lewis and Rob S.Dwyer-Joyce University of SheffieldDept.of Mechanical Engineering Sheffield, United Kingdom engine valve recession 9/11/03 T R I B O L O G Y & L U B R I C AT I O N T E C H N O LO GY Modelling of the heat loads of the engine valves and the accuracy of calculations P. Gustof, A. Hornik* Faculty of Transport, Department of Vehicle Service, Silesian University of Technology, ul. Krasińskiego 8, 40-019 Katowice, Poland Received 03.04.2007; published in revised form 01.08.2007 Journal of Achievements in Materials and Manufacturing Engineering Computational Visualization and Simulation of Diesel Engines Valve Lift Performance Using CFD Conclusion The present project work is to analyze internal combustion diesel engine exhaust valves at different welding and coating conditions and also evaluation is done by varying materials. Analysis is done to evaluate heat flux value for different materials and weld process and also coupled field analysis is conducted with above conditions to evaluate structural behavior while applying combinational loads of thermal and pressure. Initially literature survey and data collection was done to understand the methodology, selection of latest materi-
1Semin, 1Rosli Abu Bakar and 1Abdul Rahim Ismail 1Automotive Focus Group, Faculty of Mechanical Engineering, University Malaysia Pahang, Locked Bag 12, 25000 Kuantan, Pahang, Malaysia, American Journal of Applied Sciences 5 (5): 532-539, 2008 ISSN 1546-9239 © 2008 Science Publications Investigation of Exhaust Valve Failure in Heavy – duty Diesel Engine Nurten VARDAR1, Ahmet EKERİM2 Gazi University Journal of Science GU J Sci 23(4):493-499 (2010) FAILURE ANALYSIS OF INTERNAL COMBUSTION ENGINE VALVES: A REVIEW
59
International Journal of Research and Innovation (IJRI)
Naresh Kr. Raghuwanshi1, Ajay Pandey2, R. K. Mandloi3 Department of Applied Mechanics, M.A.N.I.T., Bhopal, Madhya Pradesh, India1 International Journal of Innovative Research in Science, Engineering and Technology Vol. 1, Issue 2, December 2012 Modelling and analysis of radial thermal stresses and temperature field in diesel engine valves with and without air cavity Subodh Kumar Sharma1*, P. K. Saini2, N. K. Samria3 1*2Department of Mechanical Engineering, National Institute of Technology Kurukshetra, Kurukshetra, INDIA Author
Desamsetti. Harikesava, Research Scholar, Department of Thermal Engineering, Aditya Engineering College, Surampalem, Andra Pradesh, India.
NS Maruthy Vijay Sripada Assistant Professor, Department of Mechanical Engineering, Aditya Engineering College, Surampalem, Andra Pradesh, India
S.N.CH.Dattu.V Assistant Professor, Department of Mechanical Engineering, Aditya Engineering College, Surampalem, Andra Pradesh, India
60