Assessment of Thin Thermal Barrier Coatings for I.C. Engines
Date Published: 1995-02-01
Paper Number:950980
DOI: 10.4271/950980
Citation:
Wong, V., Bauer, W., Kamo, R., Bryzik, W. et al., "Assessment of Thin Thermal Barrier Coatings for I.C. Engines," SAE Technical Paper 950980, 1995, doi:10.4271/950980.
Author(s):
Victor W. Wong - Massachusetts Institute of Technology
Wolf Bauer - Massachusetts Institute of Technology
Roy Kamo - Adiabatics, Inc.
Walter Bryzik - U.S. Army Tank - Automotive Command
Michael Reid - U.S. Army Tank - Automotive Command
Abstract:
This paper investigates theoretically the effects of heat transfer characteristics, such as crank-angle phasing and wall temperature swings, on the thermodynamic efficiency of an IC engine. The objective is to illustrate the fundamental physical basis of applying thin thermal barrier coatings to improve the performance of military and commercial IC engines. A simple model illustrates how the thermal impedance and thickness of coatings can be manipulated to control heat transfer and limit the high temperatures in engine components. A friction model is also included to estimate the overall improvement in engine efficiency by the proper selection of coating thickness and material.
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