Please use this identifier to cite or link to this item: http://hdl.handle.net/10603/17299
Title: Performance and emission studies on Bio diesel using different combustion chambers in ci engine
Researcher: Jaichandar S
Guide(s): Annamalai K
Keywords: Bio-diesel
CI Engine
Combustion chambers
Mechanical Engineering
Petroleum based diesel fuel
Pongamia Oil
Upload Date: 10-Mar-2014
University: Anna University
Completed Date: 01/09/2013
Abstract: The fossil fuels are depleting and their prices are going up day by newlineday. Moreover, the environmental issues concerned with the exhaust gases newlineemission by the usage of fossil fuels are also increasing steadily. In this newlinecontext, there has been growing interest on alternative fuels such as biodiesel newlineto provide a suitable diesel oil substitute for internal combustion engines. newlineVarious researchers have shown that biodiesel fuel exhibits physical, newlinechemical and thermodynamic properties which are similar or even better than newlinethat of petroleum based diesel fuel (PBDF). However certain properties such newlineas viscosity, calorific value, density and isothermal compressibility of newlinebiodiesel differ from PBDF. These properties strongly affect injection, airfuel newlinemixing and thereby combustion characteristics of biodiesel in a diesel newlineengine. A number of experimental investigations were carried out on the newlineperformance and emission characteristics of biodiesel fuelled diesel engines, newlinewithout any modification to the engines. These investigations have reported newlinethat, the use of neat biodiesel and its blends in the diesel engine, increased newlinebrake specific fuel consumption, decreased brake thermal efficiency and newlinebrake mean effective pressure compared to PBDF. In addition, increased newlineexhaust emission levels of oxides of nitrogen (NOx) have also been reported. The poor performance of biodiesel operated diesel engine in comparison with newlinePBDF fuelled diesel engine is mainly due to change in fuel properties, engine newlinedesign and operating parameters. Although transesterification reduces newlineviscosity of biodiesel, the viscosity of biodiesel was found to be 60-85% newlinehigher than PBDF. The high viscosity of biodiesel affects injection newlinecharacteristics, particularly atomization of the fuel. Poor atomization, newlineinsufficient in-cylinder air motion and low volatility of biodiesel lead to newlinedifficulty in the air-fuel mixing.
Pagination: xxiv, 201p.
URI: http://hdl.handle.net/10603/17299
Appears in Departments:Faculty of Mechanical Engineering

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01_title.pdfAttached File39.03 kBAdobe PDFView/Open
02_certificate.pdf351.81 kBAdobe PDFView/Open
03_abstract.pdf12.09 kBAdobe PDFView/Open
04_acknowledgement.pdf6.76 kBAdobe PDFView/Open
05_contents.pdf37.55 kBAdobe PDFView/Open
06_chapter1.pdf60.93 kBAdobe PDFView/Open
07_chapter2.pdf56.88 kBAdobe PDFView/Open
08_chapter3.pdf903.09 kBAdobe PDFView/Open
09_chapter4.pdf1.4 MBAdobe PDFView/Open
10_chapter5.pdf226 kBAdobe PDFView/Open
11_chapter6.pdf624.4 kBAdobe PDFView/Open
12_chapter7.pdf579.56 kBAdobe PDFView/Open
13_chapter8.pdf647.75 kBAdobe PDFView/Open
14_chapter9.pdf752.97 kBAdobe PDFView/Open
15_chapter10.pdf703.52 kBAdobe PDFView/Open
16_chapter11.pdf13.11 kBAdobe PDFView/Open
17_appendix.pdf223.38 kBAdobe PDFView/Open
18_references.pdf31.93 kBAdobe PDFView/Open
19_publications.pdf8.41 kBAdobe PDFView/Open
20_vitae.pdf5.39 kBAdobe PDFView/Open


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