Effects of B20 on Combustion, Emissions and Performance of a Light-Duty Diesel Engine

This paper compares 20% bio-diesel (B20-choice white grease) fuel with baseline ultra low sulfur diesel (ULSD) fuel on the performance of combustion and emissions of a light-duty 4-cylinder 2.8-liter common-rail DI diesel engine. The results show that operating the engine in the Low Temperature Combustion (LTC) regime produces lower PM and NOx with a slight penalty in fuel consumption, THC, and CO emissions. B20, in general, produces less soot. A slight increase in NOx emissions is shown with B20 compared to ULSD, with an exception at the high speed point where B20 has lower NOx values. In addition, the performance and emission characteristics are investigated as a function of the ECU injection strategy. The addition of pilot injections is found to effectively reduce combustion noise and extends the injection retard window to reach LTC combustion regimes with acceptable noise level for LD diesel engines.

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A New High Speed Light Duty DI Diesel Engine

10.4271/881209 ◽

1988 ◽

Cited By ~ 1

Author(s):

Otto Freudenschuss

Keyword(s):

Diesel Engine ◽

High Speed ◽

Light Duty ◽

Di Diesel Engine

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A comparative evaluation and optimization of performance and emission characteristics of a DI diesel engine fueled with n-propanol/diesel, n-butanol/diesel and n-pentanol/diesel blends using response surface methodology

RSC Advances ◽

10.1039/c6ra11643d ◽

2016 ◽

Vol 6 (66) ◽

pp. 61869-61890 ◽

Cited By ~ 17

Author(s):

B. Rajesh Kumar ◽

T. Muthukkumar ◽

V. Krishnamoorthy ◽

S. Saravanan

Keyword(s):

Response Surface Methodology ◽

Diesel Engine ◽

Comparative Evaluation ◽

Statistical Approach ◽

Emission Characteristics ◽

High Carbon ◽

Performance And Emission ◽

Di Diesel Engine ◽

And Performance ◽

Emissions And Performance

A comparative evaluation of emissions and performance of a diesel engine fueled with three high carbon bio-alcohol/diesel blends was carried out using a statistical approach.

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Role of nanoadditive blended biodiesel emulsion fuel on the performance and emission characteristics of diesel engine

JOURNAL OF MECHANICAL ENGINEERING AND SCIENCES ◽

10.15282/jmes.13.2.2019.08.0405 ◽

2019 ◽

Vol 13 (2) ◽

pp. 4869-4879

Author(s):

S. Rajesh Kumar ◽

P. Sai Chaitanya

Keyword(s):

Diesel Engine ◽

High Speed ◽

Direct Injection ◽

Aluminium Oxide ◽

Emission Characteristics ◽

Mechanical Agitation ◽

Performance And Emission ◽

Di Diesel Engine ◽

Aluminium Oxide Nanoparticles

An investigational research is carried out to found the performance and emission characteristics of a direct injection (DI) diesel engine with aluminium oxide nanoparticle additives in water and biodiesel blend. Palm methyl ester was produced by transesterification and blended with water. Aluminium oxide nanoparticles of 50 and 100 ppm in proportion are subjected to high-speed mechanical agitation followed by ultrasonication. The experimentations were conducted on a single cylinder DI diesel engine at a constant speed of 1500 rpm using different aluminium-oxide (AL2O3)-blended with emulsified biodiesel (PBD5%W+100ppm, PBD10%W+50ppm, PBD15%W+100ppm, PBD20%W+50ppm) and the outcomes were compared with those of neat diesel and Palm biodiesel. The experimental results indicated that brake thermal efficiency of PBD20%W+50 ppm and PBD+15%W+100ppm aluminium oxide was increased by 3-4% with 1.72% betterment in specific fuel consumption. Emissions of nitrogen oxide and hydrocarbon were reasonably lower than diesel fuel.

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Noise, Emissions and Fuel Economy Investigation on a Small DI Diesel Engine Working on Jatropha Bio-Diesel, Using Taguchi Methods

ASME 2012 Internal Combustion Engine Division Spring Technical Conference ◽

10.1115/ices2012-81155 ◽

2012 ◽

Author(s):

Vineet Kumar ◽

Rakesh Parkash Gakkhar

Keyword(s):

Diesel Engine ◽

Fuel Economy ◽

High Speed ◽

Direct Injection ◽

Taguchi Methods ◽

Combustion Noise ◽

Injection Timing ◽

Engine Noise ◽

Di Diesel Engine ◽

Hc Emissions

Experimental investigation was carried out in order to optimize the performance of a small high speed direct injection diesel engine running on Jatropha methyl ester (JME), using Taguchi methods. In the investigation three controlled parameters — injection timing, load and speed — were varied at three levels and their effect on the engine output responses — engine noise, combustion noise, smoke, NOx, HC emissions and brake specific fuel consumption were studied. Taguchi method was found to be efficient for investigating the effect of speed, load and injection timing on the engine noise, emissions and fuel economy. Analysis of variance (ANOVA) was used to find out the percentage contributions of the controlled parameters on the engine output responses. To optimize the performance, optimum combinations of the controlled parameters were found using the signal to noise (S/N) ratio. The engine output responses were predicted at those combinations. Further, confirmation runs were carried out which showed good agreement with the predicted engine output responses.

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Emission and performance behavior of safflower oil biodiesel/diesel blends in DI diesel engine

Materials Today Proceedings ◽

10.1016/j.matpr.2021.03.248 ◽

2021 ◽

Author(s):

M.A. Asokan ◽

S. Senthur Prabu ◽

S. Prathiba ◽

Shrey Mishra ◽

Harsh Mittal ◽

...

Keyword(s):

Diesel Engine ◽

Safflower Oil ◽

Di Diesel Engine ◽

And Performance ◽

Performance Behavior ◽

Emission And Performance

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Experimental investigations on diesel engine using alumina nanoparticle fuel additive

Advances in Mechanical Engineering ◽

10.1177/1687814020988402 ◽

2021 ◽

Vol 13 (2) ◽

pp. 168781402098840

Author(s):

Mohammed S Gad ◽

Sayed M Abdel Razek ◽

PV Manu ◽

Simon Jayaraj

Keyword(s):

Diesel Engine ◽

Diesel Fuel ◽

Alumina Nanoparticles ◽

Experimental Investigations ◽

Fuel Additive ◽

Alumina Nanoparticle ◽

Fuel Injectors ◽

Performance And Emission ◽

And Performance ◽

The Impact

Experimental work was done to examine the impact of diesel fuel with alumina nanoparticles on combustion characteristics, emissions and performance of diesel engine. Alumina nanoparticles were mixed with crude diesel in various weight fractions of 20, 30, and 40 mg/L. The engine tests showed that nano alumina addition of 40 ppm to pure diesel led to thermal efficiency enhancement up to 5.5% related to the pure diesel fuel. The average specific fuel consumption decrease about neat diesel fuel was found to be 3.5%, 4.5%, and 5.5% at dosing levels of 20, 30, and 40 ppm, respectively at full load. Emissions of smoke, HC, CO, and NOX were found to get diminished by about 17%, 25%, 30%, and 33%, respectively with 40 ppm nano-additive about diesel operation. The smaller size of nanoparticles produce fuel stability enhancement and prevents the fuel atomization problems and the clogging in fuel injectors. The increase of alumina nanoparticle percentage in diesel fuel produced the increases in cylinder pressure, cylinder temperature, heat release rate but the decreases in ignition delay and combustion duration were shown. The concentration of 40 ppm alumina nanoparticle is recommended for achieving the optimum improvements in the engine’s combustion, performance and emission characteristics.

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