Finite element modelling of Lanthanum Cerate (La2Ce2O7) coated piston used in a diesel engine
| Autor: | Sateesh Kumar, Jai Kumar Sharma, Mukesh Kumar Pandey, Ratan Kumar Jain, Ritu Raj |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Finite element method
Materials science 020209 energy chemistry.chemical_element 02 engineering and technology engineering.material Diesel engine 01 natural sciences Lanthanum cerate law.invention Thermal barrier coating Stress (mechanics) Piston Thermal conductivity Coating law 0202 electrical engineering electronic engineering information engineering Lanthanum IC engine Ceramic Composite material Engineering (miscellaneous) Fluid Flow and Transfer Processes Engineering (General). Civil engineering (General) 010406 physical chemistry 0104 chemical sciences Ceramic coating chemistry visual_art visual_art.visual_art_medium engineering TA1-2040 |
| Zdroj: | Case Studies in Thermal Engineering, Vol 25, Iss, Pp 100865-(2021) |
| ISSN: | 2214-157X |
| Popis: | Nowadays, the performance of IC engines and its components are improved by having a thermal barrier coating which decreases the heat losses and the harmful emissions such as hydrocarbons and the NOx emissions. The steady-state temperature of a diesel engine piston with a ceramic coating has been determined in this analysis. The Al–Si piston is used in this analysis and the ceramic material which is used for coating the crown is Lanthanum Cerate (La2Ce2O7). Temperature distributions are investigated and further compared with an uncoated piston. All the investigations are performed by using finite element method (FEM) based on the software ANSYS Workbench. The piston model is created in the ANSYS Workbench and convection boundary conditions are considered for further analysis. The coating thickness is in the range of 0.4–1.6 mm for the analysis of temperature. In the coated piston, the increased maximum temperature is 45.5% for 0.4 mm thick coating. The temperature at the top surface increases with coating thickness and it also leads to the depletion of substrate surface temperature and stress. Lanthanum cerate is a better ceramic material than magnesium zirconate due to its low thermal conductivity. |
| Databáze: | OpenAIRE |
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