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Determining the effect of the addition of temperature on the rheological properties of biofuels FAME and RME

Wcisło G., Pracuch B., Łagowski P., Kurczyński D., Leśniak A., Tomyuk V.

ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes

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2019

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Vol. 8, No 4

3--7

EN

The aim of the study was to compare the impact of dynamic viscosity of two biofuels. One was a mixture of 50% (m / m) SBME and 50% (m / m) RME of own production. The mixture was conventionally called FAME. The second biofuel was commercial RME from a gas station. Dynamic viscosity as a function of temperature from -20 to 50oC was tested. The main device used at the measuring stand was ReolabQC rheometer manufactured by a German Anton Paar GmbH company. Dynamic viscosity especially grew rapidly after cooling biofuels to temperatures below -5°C. Dynamic viscosity FAME biofuels produced from pure vegetable oil (soybean oil and rapeseed oil) in a temperature range of 50 to -20°C has a value of c.a. 9 to 53[mPa∙s]. Dynamic viscosity of Biofuel FAME produced from mixtures of vegetable oils it was on average lower by about 1 to 8 [mPa∙s] of RME shopping from a gas station.

2

Evaluation of the diesel engine feed by unified battlefield fuel F-34/F-35 mixed with biocomponents

Karczewski Mirosław

Combustion Engines

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2019

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R. 58, nr 3

240--246

EN

The problem of the military vehicles engines fuelling increases with the growth of the amount of vehicles in the armies. At the same time, another problem with fuel supply in modern engines is the use of bio component additives, which changes characteristics (quality) of the used fuels. Therefore, it is important to take actions to adapt engines to powering with fuels coming from renewable sources. The aim of the research was to evaluate the possibility of feeding the diesel engine (influence on the useful parameters and composition) with mixtures of the unified battlefield fuel F-34/F-35 with biocomponents in the form of anhydrous ethyl alcohol and RME. The tests were conducted during fuelling of the engine with six kinds of fuels: basic fuel (diesel oil), NATO code F-34/F-35 fuel, as well as fuel mixtures: F-34 and RME with different ratio and F-34/F-35 with bioethanol. In the result of the research it was concluded that the parameters of the G9T Renault engine with the common rail fuel system in terms of F-34 and RME consumption (using) decreased in comparison to diesel oil basic fuel. It is not possible to supply the engine with the mixture of ethyl alcohol and F-34 fuel - alcohol precipitation and obliteration of fuel system components.

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Rozkład wymiarowy cząstek stałych emitowanych przez silnik ZS zasilany mieszaninami oleju napędowego i RME

Merkisz J., Kozak M., Andrzejewski M., Ziółkowski A.

Combustion Engines

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2013

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R. 52, nr 3

757--761

PL

W artykule zaprezentowano wyniki badań rozkładów wymiarowych cząstek stałych silnika o zapłonie samoczynnym w teście ESC zasilanego różnym rodzajem paliwa. W badaniach stosowano cztery paliwa: konwencjonalny olej napędowy, RME w czystej postaci oraz dwie mieszaniny wymienionych paliw, zawierające odpowiednio 20 i 50 % RME. Celem badań było określenie potencjału RME w zmniejszaniu emisji cząstek stałych z jednostek napędowych pojazdów. Pomiarów rozkładów wymiarowych cząstek stałych dokonano z wykorzystaniem spektrometru masowego Engine Exhaust Particle Sizer 3090 firmy TSI Inc. Na podstawie wyników badań stwierdzono, że najmniejsze stężenie liczbowe cząstek stałych w cyklu ESC występuje przy zasilaniu silnika paliwem o pośredniej zawartości RME (20 %).

EN

The article presents some results of the dimensional distribution of particulate matter emitted from a compression ignition engine fueled by different types of fuel over the ESC cycle. Four different diesel fuel/RME blends were tested. These blends contained respectively: 5 (conventional diesel fuel), 20, 50 and 100 % RME. The aim of this study was to determine the potential of RME in reducing particulate emissions from vehicles engines. The Engine Exhaust Particle Sizer 3090 by TSI Inc. (measurement of the dimensional distribution) was used to measure PM emissions. The results showet that the smallest number of PM was emmited when the engine was fuelled with the blend containing an intermediate volume of RME, namely 20 %.