Examination of Internally and Externally Coated Cr3C2 Exhaust Pipe of a Diesel Engine via Plasma Spray Method

Authors: H. Hazar, S. Sap

Abstract:

In this experimental study; internal and external parts of an exhaust pipe were coated with a chromium carbide (Cr₃C₂) material having a thickness of 100 micron by using the plasma spray method. A diesel engine was used as the test engine. Thus, the results of continuing chemical reaction in coated and uncoated exhaust pipes were investigated. Internally and externally coated exhaust pipe was compared with the standard exhaust system. External heat transfer occurring as a result of coating the internal and external parts of the exhaust pipe was reduced and its effects on harmful exhaust emissions were investigated. As a result of the experiments; a remarkable improvement was determined in emission values as a result of delay in cooling of exhaust gases due to the coating.

Keywords: Chrome carbide, diesel engine, exhaust emission, thermal barrier.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1132405

References:

[1] B. Aydoğan, Investigation of NOx emissions in diesel engines fuelled with biodiesel and NOx reduction methods, Master Thesis, Pamukkale University Graduate School of Natural and Applied Sciences, Denizli, 2008, pp.19-21.
[2] S. Şap, The impact of the ceramic coating by plasma spray coating method on the exhaust pipe, Master Thesis, Firat University Graduate School of Natural and Applied Sciences, Elazig, 2016, pp.1-2.
[3] P. K. Aw, A. L. K. Tan, T. P. Tan, J. Ve Qiu, Corrosion resistance of tungsten carbide based cermet coatings deposited by High velocity oxy-fuel spray process, Journal of Materials Processing Technology, Warsaw, 2008, pp.5710–5715.
[4] S. Sharafat, A. Kobayashi, Y. Chan, N. M. Ghoniem, Plasma spraying of micro-composite thermal barrier coatings, Vacuum 65 2001, pp.415-425.
[5] C. Oner, Experimental investigation of the use of a gasoline-powered LPG as fuel and exhaust gas emissions, Vth National burning symposium, The book of fire and air pollution reported, Turkey, 2000, pp.228-239.
[6] A. Ercan, R. Güven, Reduction of NOX emissions in medium speed marine diesel engines, VIth International Combustion Symposium, Turkey, 1999, pp.377-387.
[7] O. A. Kutlar, M. Ergeneman, H. Arslan, M. Mutlu, Vehicle Exhaust Pollutants, Birsen Publishing House, İstanbul, 1998, pp. 13-14.
[8] C. Sayin, M. Canakci, Effect ofinjection timing on the engine performance and exhaust emissions of a dual-fuel diesel engine, Energy Conversion and Management, Turkey, 2009, pp.203-213.
[9] E. Önem, P. Sekmen, Determination of lubrication properties of diesel fuels, Electronic Journal of Vehicle Technology, Turkey 2009, pp.1 (2): 1-8.
[10] L. Cherng-Yuan, L. Hsui-An, Diesel Engine Performance and Emission Characteristics of Biodiesel Produced by the Peroxidation Process, Fuel, 2006, pp.85: 298–305.
[11] S. Puhana, N. Vedaramana, B. V. B. Rama, G. Sankarnarayananb and K. Jeychandran, Mahua oil (madhuca ındica seed oil) methyl ester as biodiesel-preparation and emission characteristics, Biomass and Bioenergy, 2005, pp.28,87–93.
[12] A. N. Özsezen and M. Çanakçı, Performance and emission analysis of a diesel engine using biodiesel and its mixtures, Pamukkale University Journal of Engineering Sciences, 2009, 15 (2): pp.173-180.
[13] A. Aktaş and Y. Sekmen, Effect of biodiesel-driven diesel engine fuel injection advance on performance and exhaust emissions, Gazi University Journal of Engineering and Architecture, Turkey, 2008, 23 (1): pp.199- 206.
[14] R. Stone, Motor Vehicle Fuel Economy, Macmillan Educational Ltd, Houndsmills, 1989.
[15] H. Hazar and U. Oztürk, The effects of ceramic coating on the performance and emission of hazelnut oil and d2 fuel mixture, Vth International Advanced Technologies Symposium (IATS’09), 2009, pp.13-15 May, Karabuk, Turkey.
[16] A. Demirci, M. Gümüş, C. Sayın, M. Atmaca, A. K. Binark and M. O. Işıktan, Impact on exhaust emissions of biodiesel-diesel mixtures in a compression-ignited engine, VIth International Advanced Technologies Symposium (IATS’11), Elazig,Turkey, 2011, pp.25-27.
[17] B. Alkaya and A.M. Yıldırım, Methods of reducing vehicle pollutants, Balikesir University Faculty of Engineering and Architecture, Balikesir, Turkey, 20009 (34): pp.15-20.
[18] Alkaya, B. ve Yıldırım, A. M., “Taşıt kaynaklı kirleticilerin azaltılma yöntemleri”, Balıkesir Üniversitesi Mühendislik Mimarlık Fakültesi, Balıkesir, 9 (34): 15-20 (2000).