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Thermal-Mechanical Effects of Ceramic Thermal Barrier Coatings on Diesel Engine Piston

Published online by Cambridge University Press:  17 March 2011

Jesse G. Muchai ,
Ajit D. Kelkar ,
David E. Klett  and
Jagannathan Sankar
Jesse G. Muchai
Affiliation:
NSF Center for Advanced Materials and Smart Structures Department of Mechanical Engineering North Carolina A&T State University Greensboro, NC 27411, USA
Ajit D. Kelkar
Affiliation:
NSF Center for Advanced Materials and Smart Structures Department of Mechanical Engineering North Carolina A&T State University Greensboro, NC 27411, USA
David E. Klett
Affiliation:
NSF Center for Advanced Materials and Smart Structures Department of Mechanical Engineering North Carolina A&T State University Greensboro, NC 27411, USA
Jagannathan Sankar
Affiliation:
NSF Center for Advanced Materials and Smart Structures Department of Mechanical Engineering North Carolina A&T State University Greensboro, NC 27411, USA
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Abstract

The purpose of this paper is to investigate the piston temperature and stress distribution resulting from varying coating thicknesses of Partially Stabilized Zirconia (PSZ) thermal barrier coatings for the performance in diesel engine applications. This analysis is based on the premise that coating thickness affects the heat transfer and temperature distribution in the piston. A gas dynamic engine cycle simulation code was used to obtain thermal boundary conditions on the piston then, a 2-D axisymmetric Finite Element Analysis (FEA) using ANSYS was performed to evaluate the temperature and stress distributions in the piston as a function of coating thickness. Coating thicknesses studied include 0.1, 0.2, 0.3, 0.5, 1.0, 1.5, and 2.0mm. The results indicate increased piston surface temperature with increasing coating thickness. The maximum stress on the coated piston surface was high while the substrate stress was less than the coating yield stress for all coating thicknesses. Further, the analysis showed that the interface stress at all coated conditions is low enough such that no separation of the coating is expected. The FEA results suggest an optimum coating thickness of 0.1 to 1.5 mm for diesel engine application to avoid unduly high stress in the ceramic.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 697: Symposium P – Surface Engineering 2001--Fundamentals and Applications , January 2001 , P8.10
Copyright
Copyright © Materials Research Society 2002

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References

1. Kamo, R., Assanis, D., and Bryzik, W., “Thin Thermal Barrier Coatings for Engines”, SAE Paper 890143, 1989.Google Scholar
2. Miyairi, Y., Matsuhisa, T., Ozawa, T., Oikawa, H., and Nakashima, N., “Selective Heat Insulation of Combustion Chamber Walls for a DI Diesel Engine with Monolithic Ceramics.” SAE Paper 890141, 1989.Google Scholar
3. Sankar, J., Klett, D.E., Kelkar, A. D., Muchai, J., and Yarmolenko, S. “Processing and Characterization of Structural and Functional Material for Heavy Vehicle Applications”, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, Report No. EE 0701000, 2001 Google Scholar
4. Russell, L., Sankar, J., Miller, R. A., Zhu, D. and Calamino, A., “Effects of Mullite/YSZ Coatings on the Performance of SiC/SiC Composite Combustion Liners” Ceramic and Engineering Science Proceedings, Jan. 23-28, 2000, Cocoa Beach, FL, Vol. 21 (4), 243–250 Google Scholar
5. Bryzik, W., Schwarz, E., Kamo, R., and Woods, M., “Low Heat Rejection From High Output Ceramic Coated Diesel Engine and Its Impact on Future Design.” SAE Paper 931021, 1993.Google Scholar
6. Afify, E. M., and Klett, D. E., “The Effects of Selective Insulation on the Performance, Combustion, and NO Emissions of a DI Diesel Engine.” SAE Paper 960505, 1996.Google Scholar
7. Moore, C., and Hoene, J., “Combustion Chamber Insulation Effects on the Performance of a Low Heat Rejection Cummins V-903 Engine”, SAE Paper 860317, 1986.Google Scholar
8.4stroke- 2000. “Gas Dynamics Engine Cycle Simulation.” Engine Research Center, University of Wisconsin- Madison, 2000.Google Scholar
9. Woshini, G., “A Universally Applicable Equation for Instantaneous Heat Transfer Coefficient in Internal Combustion Engine”, SAE Paper 670931, 1967.Google Scholar
10. Annand, W. J. D. “Heat Transfer in the Cylinders of a reciprocating Internal Combustion Engine”, Proc. Instn. Mech. Engrs., 177, p973, 1963.Google Scholar
11. Hohenberg, G. F., “Advanced Approaches for Heat Transfer Calculations.” SAE Paper 790825, 1979.Google Scholar
12. Muchai, J. G., PhD Thesis, North Carolina A&T State University, 2001 Google Scholar
13. Assanis, D. N., and Badillo, E., “Transient Heat Conduction in Low-Heat Rejection Engine Combustion Chambers.” SAE Paper 870156, 1987.Google Scholar