Investigation of performanceand exhaust emissions in direct...

tahani@iust.ac.ir

Investigationofperformance andexhaustemissionsindirectinjectionengineusingcoconutoilbiodiesel

M.H.Shojaeefard1,M.Tahani2*,M.M.Etghani3,M.Akbari4

1- Automotive Eng. Department, Iran University of science and technology, Tehran 2- Automotive Eng. Department, Iran University of science and technology, Tehran 3- Automotive Eng. Department, Iran University of science and technology, Tehran 4- Automotive Eng. Department, Iran University of science and technology, Tehran

* (tahani@iust.ac.ir)

AbstactIn this study, the performance and emission characteristics of a direct injection diesel engineusingcoconut oil biodieselwere investigated. For this aim, coconut oil was converted to its biodiesel viatransesterificationapproach.Then, theeffects of thebiodieselpercentage inblend, engine load,andspeedonbrakepower,brakespecificfuelconsumption(BSFC),nitrogenoxides(NOx),carbondioxide(CO2),carbonmonoxide(CO),andparticlematter(PM)havebeenconsidered.Fuelblendswithvariouspercentages of biodiesel ( %0 - %3 ) at various engine speeds and loadswere tested. The results

indicatedthatblendsofcocunutwithdieselfuelprovideadmissibleengineperformance;ontheotherside,emissionsdecreasedsomuch

Keywords:Biodiesel,Cocunt,EnginePerformance,Emission

COCO

NOxPM

MT4.244

.

ASTM D664Mg KOH/gr

ASTM D525min

co100 ASTM D130-

ASTM D4951

Ppm

ASTM D2500

co

ASTM D97co

ASTM D240MJ/Kg

co20 ASTM D7042

g/mL

co40 ASTM D7042

Cst

ASTM D92co

Osmomatg/mol

ASTM D7042

Mass%

.

Hp

rpm

N.m

rpm

Kg

Stage-2

SCHENCK-

WT190

ISO2534

AVL DiCOM

BSFC

CI

WOT

PM

PM

PM

ppm

NONO

NOx

NOx

NOx

CO

CO

CO

CO

Speed (rpm)

Diesel B5 B10

B15 B20 B25

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