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논문 기본 정보

자료유형
학술저널
저자정보
P. Mohan Kumar (Jayalakshmi Institute of Technology) V.C. Uvaraja (Bannari Amman Institute of Technology) P. Madhu (Karpagam College of Engineering)
저널정보
한양대학교 세라믹공정연구센터 Journal of Ceramic Processing Research Journal of Ceramic Processing Research 제23권 제5호
발행연도
2022.10
수록면
647 - 655 (9page)

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In this research work, alumina (Al2O3) with Partially Stabilized Zirconia (PSZ) and Yttria Stabilized Zirconia (YSZ) werecoated on the engine piston and intake and exhaust valves using the atmospheric plasma spray technique as a thermal barriercoating (TBC) over NiCrAl bond coat. The aim of this work is to experimentally investigate the thermal cycling behavior andperformance and emission analysis of the coated engine fuelled with ternary blends produced from castor and jatropha seedoils dosed with diesel. Three ternary blends were prepared in various proportions of B20, B40 and B50 and tested in coatedand uncoated engines. The experimental findings revealed that Al2O3/YSZ based TBC has good thermal cycling behavior andthe formation of thermally generated oxide (TGO) was primarily responsible for the spallation of the coating. The ternaryblends showed higher brake thermal efficiency (BTE) and lower specific fuel consumption (SFC) when operated in the TBCengine. At B20 operating conditions maximum improvement of 2.98% and 3.43% BTE is recorded using Al2O3/PSZ andAl2O3/YSZ coated engine compared to conventional engine operated with neat diesel. In emissions, compared to conventionaldiesel engines, both TBC coated engines produced less HC and CO with increased NOx levels.

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