Thermal Analysis of a Zirconium Dioxide Coated Aluminum Alloy Piston

Year 2018, , 43 - 50, 27.11.2018

Murat Ozsoy , İsmet Tıkız , Hüseyin Pehlivan

https://doi.org/10.22399/ijcesen.479222

Cited By: 3

Abstract

Performance and operating
costs are the most important factors in internal combustion engines. It is one
of the most commonly used methods to coat pistons with advanced technological
ceramic materials in order to improve performance and fatigue life in internal
combustion engines. In this study, changes in temperature and heat flux were
investigated in various thickness coatings made on a 2500 cc turbo diesel
engine piston. As bonding coat, NiCrAl was used in a thickness
of 0.2 mm, while ZrO₂ (zirconium dioxide) was used in thicknesses of 0.2-0.4-0.6 and 0.8 mm as
thermal barrier coating material. The piston was modeled in PTC Creo parametric
software and then transferred to ANSYS Workbench environment to create a
mathematical model. Engineering calculations were also done using the finite
element method.  After the calculation, the temperatures at the depth of 5 mm from the
combustion chamber upper surface, the binder layer upper surface, the thermal
coating upper surface and the combustion chamber upper surface were compared.
As a result, it was observed that the combustion chamber and the section at the
depth of 5 mm from the combustion chamber had a temperature decrease of 13%.

Keywords

Thermal analysis, Finite element method, Thermal barrier coating, Aluminum alloy piston

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