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) | 
|
| © 2015 by IJETT Journal | ||
| Volume-27 Number-6 |
||
| Year of Publication : 2015 | ||
| Authors : K.Simhadri, P.Srinivas |
||
| DOI : 10.14445/22315381/IJETT-V27P252 |
Citation
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.