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Transient Heat Conduction in Low-Heat-Rejection Engine Combustion Chambers
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1987 by SAE International in United States
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Predicting the effects of transient heat conduction in low-heat-rejection engine components have been analyzed by applying instantaneous boundary conditions throughout a diesel engine thermodynamic cycle. This paper describes the advantages and disadvantages of one-dimensional finite difference and two-dimensional finite element methods by analyzing simple and complicated geometries like diesel bowl-in pistons. Also the performance characteristics of plasma sprayed zirconia, partially stabilized zirconia, and a monolithic reaction bonded silicon nitride ceramic materials are discussed and compared. Finite element studies have indicated that the steep temperature gradients associated with cyclic temperature swings in excess of 400 K may contribute to the failure of ceramic coatings near the corner joining the surface of the piston and the surface of the bowl for bowl-in pistons.
CitationAssanis, D. and Badillo, E., "Transient Heat Conduction in Low-Heat-Rejection Engine Combustion Chambers," SAE Technical Paper 870156, 1987, https://doi.org/10.4271/870156.
SAE 1987 Transactions: Reciprocating Engines--Spark Ignition and Diesel
Number: V96-4 ; Published: 1988-09-01
Number: V96-4 ; Published: 1988-09-01
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