Performance and Emission Analysis of Partially Insulated Four Stroke Diesel Engine Fuelled with Blends of Sunflower Methyl Ester

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
  
© 2015 by IJETT Journal
Volume-27 Number-6
Year of Publication : 2015
Authors : K.Simhadri, P.Srinivas
  10.14445/22315381/IJETT-V27P252

MLA 

K.Simhadri, P.Srinivas"Performance and Emission Analysis of Partially Insulated Four Stroke Diesel Engine Fuelled with Blends of Sunflower Methyl Ester", International Journal of Engineering Trends and Technology (IJETT), V27(6),287-291 September 2015. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group

Abstract
Methyl esters extracted from vegetable oils are an important alternative fuel for diesel. The direct usage of these fuels without any modification damages engine parts. The performance of these fuels in a diesel engine can be improved by providing insulation to the inner walls of combustion chamber. It increases the operating temperature within the combustion chamber reducing the viscosity of methyl esters which have higher viscosity than diesel. These low quality fuels can be more readily used in Low Heat Rejection engines. In this experimental study, cylinder head, inlet and exhaust valves and piston were coated with Yttrium stabilized Zirconia using plasma spray technique. The effects of Sunflower methyl ester from Transesterification method blended in diesel as a fuel in diesel was studied in both performance and emission aspects. An increase in engine brake thermal efficiency and decrease in specific fuel consumption was observed for pure diesel and the characteristics of methyl ester were better in case of coated engine rather than uncoated engine. Significant reduction in emissions were observed for methyl esters except CO at full load and NOx at all load conditions in case of coated engine compared to uncoated engine.

 References

[1] I. Taymaz, An experimental study of energy balance in low heat rejection diesel engine, Energy 31 (2006) 364-371.
[2] S.H. Chan, K.A. Khor, The effect of thermal barrier coated piston crown on engine characteristics, Journal of Materials engineering and performance 9(2000) 103-109.
[3] A. Parlak, H.Yasar, C.Hasimoglu, A.Kolip, The effects of injection timing on NOx emissions of a low heat rejection indirect diesel injection engine, Applied Thermal Engineering 25 (17-18) (2005) 3042-3052.
[4] A. Parlak, The effect of heat transfer on performance of diesel cycle and exergy of the exhaust gas stream in a LHR diesel engine at the optimum injection timing, Energy Conservation and Management 46 (2) (2005) 167-179.
[5] Jaichandar S, Tamilporai P, Low heat reection engines-an overview, SAE Paper No. 2003 01-045; 2003.
[6] Encinar JM, Gonzalez JF, Rodriguez-Reinares A., Ethanolysis of used frying oil: Biodiesel preparation and characterization, Fuel Process Technology2007;88: 513-522.
[7] Lu X, Ma J, Ji L, Huang Z, Simultaneous reduction of NOx emission and smoke opacity of biodiesel-fueled engines by port injection of ethanol, Fuel 2008;87: 1289-1296.
[8] Zheng M, Mulenga MC, Reader GT, Wang M, Ting DSK, Tjang J, Biodiesel engine performance and emissions in low temperature combustion, Fuel 2008;87:714-722.
[9] Altin R; An experimental investigation on use of vegetable oils as diesel engine fuels, PhD thesis, Gazi University; 1998.
[10] Yamane K, Ueta A, Shimamoto Y: Influence of physical and chemical properties of biodiesel fuels on injection, combustion and exhaust emission characteristics in a direct injection compression ignition engine, International Journal of Engine Research 2001;2:249-261..

Keywords
Diesel engine, coating, Sunflower, Yttrium Stabilised Zirconia, YSZ, emissions.