Mustafa Ozcanli

Biodiesel Production from Terebinth (Pistacia Terebinthus) Oil and its Usage in Diesel Engine

This paper presents the results of investigations carried out on a three-cylinder, fourstroke, and direct-injection CI engine operated with terebinth (pistacia terebinthus) oil biodiesel. Terebinth oil was squized using the extraction method and therefore terebinth oil biodiesel was produced via the transesterification method. Terebinth oil biodiesel (B)—diesel fuel (D) blends were tested in a direct injection diesel engine at full load condition. Power values showed a trend of decreasing with all biodiesel fuels at high engine speeds. Specific fuel consumption (SFC) values increased depending on the amount of biodiesel in the test fuels. In general, exhaust emission profile of biodiesel fuels improved. CO and CO2 emissions decreased up to 34.54% and 10.69% respectively. However, NOx emissions increased up to 32.97%.

Biodiesel Production From Tea Seed (Camellia Sinensis) Oil and its Blends With Diesel Fuel

Biodiesel has been produced from various vegetable oils, such as palm, canola (rapeseed), cottonseed, sunflower, and soybean oils as well as a variety of less common oils. This study evaluated the production of biodiesel using tea seed (Camellia sinensis) oil as a raw material. Methyl ester was produced by transesterification of tea seed oil with methanol in the presence of a catalyst (NaOH). The fuel properties such as pour point (PP), kinematic viscosity, cetane number, flash point, density, copper strip corrosion, and heating value were determined and discussed in light of American (ASTM D6751) and European (EN 14214) biodiesel standards. Not only the specifications of pure biodiesel but also its blends with diesel fuel were analyzed. Biodiesel produced from tea seed oil exhibit a low pour point value of −5°C, one of the lowest found for a biodiesel fuel. The cold flow properties of tea seed methyl ester (TSME) demonstrate its operational viability during the cold weather conditions. As a result, tea seed oil, as agricultural crop, might be a reasonable raw material for the biodiesel production.

Performance and Emission Studies of Castor Bean (Ricinus Communis) Oil Biodiesel and Its Blends with Diesel Fuel

Abstract An experimental study was conducted to evaluate the use of various blends of castor (Ricinus Communis) oil methyl ester with diesel fuel. Performance and exhaust emissions of castor oil biodiesel with diesel fuel in a commercial compression ignition engine were presented in this study. Biodiesel produced from castor oil was blended with diesel fuel at the volumetric ratios of 5% (B5), 10% (B10), 25% (B25), 50% (B50), and 100% (B100). Fuel properties of castor oil methyl ester and its blends with diesel fuel were stated. The performance results showed that blends of castor oil methyl ester with diesel provided an increase on brake specific fuel consumption and a small decrease on brake power output. Compared with diesel fuel, diesel-castor oil methyl ester blends showed that while the carbon monoxide and carbon dioxide emissions became reduced; the oxides of nitrogen emissions observed higher than diesel fuel emission characteristics. Test results showed that B25 was determined as a suitable alternative fuel for diesel engines.

Engine Performance and Emission Characteristics of Plastic Oil Produced from Waste Polyethylene and Its Blends with Diesel Fuel

The overall objective of this study was to explore the utility of waste plastics as a potential source of diesel fuel. An experimental study was conducted to evaluate the use of various blends of plastic oil produced from waste polyethylene (WPE) with diesel fuel (D). WPE was degraded thermally and catalytically using sodium aluminum silicate as a catalyst. The oil collected at optimum conditions (414°C–480°C range and 1 h reaction time) was fractionated at different temperatures and fuel properties of the fractions were measured. Plastic oil was blended with diesel fuel at the volumetric ratios of 5%, 10%, 15%, 20%, and 100%. Fuel properties of blends are found comparable with those of diesel fuel within the EN 590 Diesel Fuel standard and they can also be used as fuel in compression ignition engines without any modification. Engine performance and exhaust emission studies of 5% WPE-D (WPE5) blend were performed. Experimental results showed that carbon monoxide (CO) emission is decreased by 20.63%, carbon dioxide (CO2) emission is increased by 3.34%, and oxides of nitrogen (NOx) emission is increased by 9.17% with WPE-D (WPE5) blend compared to diesel fuel.

Investigation of Nanoparticle Additives to Biodiesel for Improvement of the Performance and Exhaust Emissions in a Compression Ignition Engine

Worldwide energy demand has been growing steadily during the past five decades and most experts believe that this trend will continue to rise. The amount of emitted harmful emission gases increases in parallel with increasing energy consumption. This increase has forced many countries to take various precautions, and various restrictions on emitted emissions have been carried. In this study, effects of addition of oxygen containing nanoparticle additives to biodiesel on fuel properties and effects on diesel engine performance and exhaust emissions were investigated. Two different nanoparticle additives, namely MgO and SiO2, were added to biodiesel at the addition dosage of 25 and 50 ppm. Fuel properties, engine performance, and exhaust emission characteristics of obtained modified fuels were examined. As a result of this study, engine emission values NOx and CO were decreased and engine performance values slightly increased with the addition of nanoparticle additives.

Optimizing the Quantity of Diesel Fuel Injection by Using 25HHOCNG Gas Fuel Mixture

Injection behaviors of internal combustion engines are very substantial fact that provides developments to future strategies about optimizing the engine and fuel parameters. During the combustion process, pilot diesel injection technique is more preferable option while using alternative gas fuels in a diesel engine. In this experimental study, a 3.6 L commercial, four stroke, four cylinders and mechanical fuel pump non-modified diesel test engine operated with hydroxy (HHO) and compressed natural gas (CNG) fuel mixtures under 25% and 75% (vol/vol), respectively. Diesel fuel injection quantities were reduced with the help of steeping motor devices which mounted on mechanical fuel pump plunger pin. Sensitive removes of steeping motor, plunger pin twisted clockwise 360°, 720° and 1080°, respectively. Comparisons of engine performance and exhaust emissions were explained briefly and illustrated via graphs. As a result, 720° clockwise twisted pin is the optimum point for experimental fuel pump plunger while using 25HHOCNG fuel mixtures.

Effect of Spark Plug Alteration on Performance Using Hydrogen Enriched Gasoline in Si Engine Under Various Loads and Compression Ratios

In this study, change in brake power (BP) of a variable compression spark ignited engine was investigated with different spark plugs and hydrogen enrichment. The tests were carried out with a four stroke, single cylinder, naturally aspirated, variable compression ratio (VCR) engine. Two different compression ratios (CR) of 8.5:1 and 10:1 under %50 part throttle condition were implemented throughout the experiments. Moreover, engine loads of 8 Nm, 13 Nm and 17 Nm were applied to evaluate effects of different spark plugs and hydrogen usage at different engine loads. Copper, iridium and platinum spark plugs were tested for each experiment condition. In addition, hydrogen was added through the intake manifold with flow rates of 0, 2 and 4 lit/min to enhance combustion of VCR engine. According to test results, iridium and platinum spark plug usage, hydrogen addition and higher compression ratio improved BP significantly. This variance occurred more obvious with platinum spark plug usage comparing to iridium spark plug. In addition, effects of spark plug alteration, hydrogen addition and higher CR on enhancement of BP were comparatively lower at higher engine loads.

Determination of the Impacts of Nanoparticule Additives into Diesel Fuel on NOx Emmision Characteristics of a Heavy Duty Diesel Engine

Transport is crucial for economic and social development of a society as it serves a key role for transportation of goods and people. But it is not free of negative externalities. Operation of transport vehicles require energy use and this energy is mostly generated with fossil fuel combustion. Unfortunately, the fossil fuel combustion comes with both global emissions (CO2, N2O, CH4), which cause climate change, and local emissions (PM, NOx, HC, CO, O3), which cause adverse health effects and damage natural environment. In this paper the level of NOx emission by adding fuel additive metal oxide based nanoparticles in heavy duty engines were investigated. Three different nanoparticle additives namely Titanium Oxide (TiO2), Silicon Oxide (SiO2) and Zinc Oxide (ZnO), were added to diesel fuel at the dosages of 15, 20 and 25 ppm. Eventually, the most proper additive and addition dosages were indicated.

Effect of foam application in bus structure for conservation of residual space during rollovers

Rollovers are complex crashes that have serious consequences for vehicle safety and human life. Bus manufacturers are focusing on passenger life against bus rollovers. Different materials and assembly techniques have been tried out by manufacturers to reduce the deathly impacts of rollovers. The Economic Commission for Europe enforced Regulation No. 66 (ECE R66) for the superstructure strength of buses to provide vehicle safety and protect passenger lives. Thus, design characteristics must satisfy ECE R66 under various load applications, without fail. This paper presents the evaluation of foam applied on the sidewalls of a non-commercial bus during rollover. The non-linear explicit dynamics code LS-DYNA as a solver and ANSA software as FEA pre/post-processors were used throughout the rollover analysis. Results showed that foam application on the sidewalls enhanced the impact resistance of buses during rollovers without making the body structure heavier.

Performance and Exhaust Emission Studies of a Compression Ignition Engine Fueled With Waste Chicken Oil Methyl Ester (WCOME)-Diesel Fuel Blends

Performance and exhaust emission studies of Waste Chicken Oil Methyl Ester (WCOME)-diesel fuel blends has been presented in this paper. The production of biodiesel from waste chicken oil was carried out via transesterification method. Blending ratios were preferred as 5% (B5), 10% (B10), 25% (B25) and 50% (B50) respectively. Performance and emission studies were carried out in a commercial diesel engine. The performance results reveal that blends of WCOME with diesel fuel provide increase on the brake specific fuel consumption (bsfc) and decrease on the brake power output proportional to the reduction in the heating value of blends. As a result, while the carbon monoxide (CO) and the carbon dioxide (CO2) emissions were reduced, nitrogen oxides (NOx) emissions were stated higher compared with the diesel fuel emission characteristics.Copyright