scholarly journals Effect of rapeseed methyl ester on emission production

2014 ◽  
Vol 60 (No. 1) ◽  
pp. 1-9
Author(s):  
M. Pexa ◽  
K. Kubín
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Particulate Matter ◽  
Methyl Ester ◽  
Engine Speed ◽  
Test Procedure ◽  
Diesel Oil ◽  
Emission Component ◽  
Rapeseed Methyl Ester ◽  
Tractor Engine

This paper describes the effect of a mixture of rapeseed methyl ester and diesel oil on emission production of tractor engine. The hydraulic dynamometer was used to load the engine of Zetor Forterra 8641 tractor over rear power take-off. The measured tractor is almost new with less than 100 h worked. The measurements were realized for several ratios of diesel oil and rapeseed methyl ester (from pure diesel to pure rapeseed methyl ester). The engine was loaded by the dynamometer in several working points which were predefined by engine speed and its torque. The production of carbon monoxide (CO), carbon dioxide (CO<sub>2</sub>), hydrocarbons (HC), nitrogen oxides (NO<sub>x</sub>) and particulate matter (PM) were measured in each of these points. The comparison of different fuels was performed using the Non-Road Steady Cycle (NRSC) test procedure. Engine maps were also created for each emission component and for all of tested fuels. &nbsp; &nbsp;

scholarly journals  Effect of rapeseed methyl ester on fuel consumption and engine power

2012 ◽  
Vol 58 (No. 2) ◽  
pp. 37-45
Author(s):  
M. Pexa ◽  
K. Kubín
Keyword(s):  
Methyl Ester ◽  
Fuel Consumption ◽  
Engine Speed ◽  
Calorific Value ◽  
Diesel Oil ◽  
Specific Fuel Consumption ◽  
Flow Meter ◽  
Rapeseed Methyl Ester ◽  
Tractor Engine ◽  
Engine Power

This paper describes the effect of a mixture of rapeseed methyl ester and diesel oil on fuel consumption and power parameters of tractor engine. The hydraulic dynamometer was used to load the engine of Zetor Forterra 8641 tractor over rear power take-off. The measured tractor is almost new with less than 100 h worked. The measurements were realized for several ratios of diesel oil and rapeseed methyl ester (from pure diesel to pure rapeseed methyl ester). The engine was loaded by the dynamometer in several working points which were predefined by engine speed and its torque. The fuel consumption was measured by the flow meter in each of these points. The reduction of engine&rsquo;s power parameters and the increase of specific fuel consumption are expected due to the nature of rapeseed methyl ester such as e.g. lower calorific value. &nbsp;

scholarly journals COMPARATIVE RESEARCH INTO MULTICOMPONENT CAMELINA SATIVA AND RAPESEED METHYL ESTER BIOFUELS / DAUGIAKOMPONENČIŲ CAMELINA SATIVA IR RAPSO METILESTERIO BIODEGALŲ PALYGINAMIEJI TYRIMAI

2012 ◽  
Vol 4 (4) ◽  
pp. 391-396 ◽  
Author(s):  
Justas Žaglinskis ◽  
Paulius Rapalis ◽  
Vygintas Daukšys
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Methyl Ester ◽  
Carbon Dioxide Emissions ◽  
Comparative Research ◽  
Environmental Parameters ◽  
Camelina Sativa ◽  
Nitrogen Oxide Emissions ◽  
Effective Performance ◽  
Rapeseed Methyl Ester

The article presents the results of comparative motor research on FAME biofuels using diesel engine VALMET 320 DMG. Energy (ηe, be) and environmental parameters (CO2, CO, NOx, HC, SM) of the engine were estimated. The obtained data on motor research into new biofuels show that the properties of Camelina sativa biofuels are as good as those observed in standardized rapeseed methyl ester biofuels. In case of using Camelina sativa biofuels blends VME and ZME at different engine loads, exhaust emissions from gas smoke could be reduced up to 10% and 30% accordingly comparing with mineral diesel. When the engine is fueled with tested biofuel blends, carbon monoxide emissions decrease by about 5–6%, and the factor for effective performance increases by approximately 4%. In all range of engine loads, an increase in nitrogen oxide emissions reaching 2–3% was observed. In all cases of using biofuel blends, carbon dioxide emissions keep close to the application of mineral diesel. Santrauka Straipsnyje pateikiami RRME biodegalų palyginamųjų motorinių bandymų, kurie buvo atlikti dyzeliniame variklyje VALMET 320 DMG, rezultatai. Įvertinti variklio energetiniai (ηe, be) ir ekologiniai rodikliai (CO2, CO, NOX, HC, SM). Atliktų naujų biodegalų motoriniai tyrimų rezultatai rodo, kad naujų Camelina sativa biodegalų savybės nenusileidžia standartizuotiems rapso metilesterio biodegalų savybėms. Lyginant su mineraliniu dyzelinu, naudojant Camelina sativa biodegalų mišinius VME ir ZME, skirtingais variklio apkrovos režimais galima sumažinti išmetamųjų dujų dūmingumą atitinkamai iki 10 % ir 30 %. Varikliui dirbant bandomaisiais biodegalų mišiniais, buvo pasiektas 5–6 % anglies monoksido emisijos sumažėjimas ir 4 % naudingo veikimo koeficiento padidėjimas. Visame variklio apkrovos diapazone stebimas 2–3 % azoto oksidų emisijos padidėjimas. Anglies dioksido emisija visais biodegalų naudojimo atvejais išlieka artima mineralinio dyzelino naudojimui.

scholarly journals Selected physical properties of liquid biofuels

2013 ◽  
Vol 59 (No. 4) ◽  
pp. 121-127
Author(s):  
P. Trávníček ◽  
M. Valach ◽  
Z. Hlaváčová ◽  
J. Mareček ◽  
T. Vítěz ◽  
...  
Keyword(s):  
Shear Stress ◽  
Shear Rate ◽  
Methyl Ester ◽  
Physical Properties ◽  
Methyl Esters ◽  
Calorific Value ◽  
Diesel Oil ◽  
Rapeseed Methyl Ester ◽  
Control Samples

The goal of this study was the determination of basic physical properties such as density, calorific value and rheological properties of liquid biofuels. Biofuels on the base of bioethanol and rapeseed methyl ester were chosen. Following control samples were selected: diesel oil without admixture of methyl esters and commercially available diesel oils with small amount of methyl ester admixture (6.2 and 6.5%). Dynamic viscosities of individual samples were measured in the range from &ndash;10&deg;C to 50&deg;C. Then dependence of shear rate on shear stress was measured at temperatures &ndash;10, 0, 20 and&nbsp;40&deg;C. The most of samples showed the Newtonian behaviour. However, samples with high content of methyl esters or pure methyl esters showed thixotropy behaviour at the low temperature.

scholarly journals Performance and exhaust gases of a diesel engine using different magnetic treatments of the fuel

2020 ◽  
Vol 14 (1) ◽  
pp. 6285-6294
Author(s):  
R. Arias Gilart ◽  
M. R. B. Ungaro ◽  
C. E. A. Rodríguez ◽  
J. F. F. Hernández ◽  
M. C. Sofia ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Diesel Engine ◽  
Compression Ratio ◽  
Engine Speed ◽  
Magnetic Treatment ◽  
Static Magnetic Fields ◽  
Mass Consumption ◽  
Exhaust Gases ◽  
Carbon Dioxide Co2

In this research, different magnetic treatments were applied to diesel fuel using static magnetic fields of 0.36T of magnetic induction. The magnetic conditioners (MCs) were installed in different positions of the fuel lines in the engine and the magnetic treatment of the diesel was also carried out before introducing it into the engine tanks. The study was conducted using a four-stroke, two-cylinder, Lister Petter (LPWS2) engine with a compression ratio of 23.5:1 and a constant engine speed of 1500 rpm. The emissions of carbon monoxide (CO), carbon dioxide (CO2), oxygen (O2), nitrogen oxides and the temperature of the exhaust gases and the mass consumption of fuel were measured. The highest levels of reduction were achieved with the magnetic treatments that locate the MC directly in the engine's pipes. As the number of MC in the engine pipes increases, the emissions of polluting gases decrease. With the treatment that locates one MC in front of each injector, two MC at the entrance of the filter and two MC in the return of fuel were able to increase the O2 emissions by 6.9% and decrease the CO emissions in about 21.3% in the last load of the generator set. With this treatment a decrease in fuel consumption of 4.89% to 80% of engine load was obtained.

scholarly journals Emisja zanieczyszczeń przy zasilaniu silnika ZS olejem napędowym z domieszką bioetanolu

2013 ◽  
Vol 11 (2) ◽  
pp. 139-146
Author(s):  
Anna Matuszewska ◽  
Małgorzata Odziemkowska ◽  
Joanna Czarnocka
Keyword(s):  
Carbon Monoxide ◽  
Particulate Matter ◽  
Nitrogen Oxides ◽  
Diesel Oil ◽  
Particulate Matters ◽  
Chassis Dynamometer ◽  
Oxygen Compound ◽  
Dynamometer Test

Bioethanol is an oxygen compound added to gasoline. Research into the possibility of applying it to diesel oil is conducted. It is assumed that such fuel could help reduce the emission of gaseous and particulate matter in comparison with conventional fuels. This paper presents the results of the authors’ chassis dynamometer test for biofuel containing 15% bioethanol. Emissions of carbon monoxide (CO), nitrogen oxides (NOx), hydrocarbons (THC), and particulate matters (PM) were related to diesel oil emissions.

Biomass Burning and Resulting Emissions in the Northern Territory, Australia

1995 ◽  
Vol 5 (4) ◽  
pp. 229 ◽  
Author(s):  
J Beringer ◽  
D Packham ◽  
N Tapper
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Particulate Matter ◽  
Biomass Burning ◽  
Trace Gases ◽  
Northern Territory ◽  
Total Particulate Matter ◽  
Nitrous Oxides ◽  
Noaa Avhrr ◽  
Fire Activity

The extent of biomass burning in the Northern Territory, Australia, during 1992 (a year of low fire activity) was estimated using NOAA-AVHRR satellite imagery and was subsequently used to calculate the emission of gaseous compounds from biomass burning for that year. A total of 73,729 km2 was determined to have been burnt, representing 5.5% of the total Northern Territory area. The extent of biomass burning in different vegetation units in the Northern Territory was also estimated with eucalypt communities comprising 72% of the total area burnt. An estimated 29.5 x 106 tonnes of biomass was consumed by burning, resulting in the production of an estimated : 1. 11.3 Tg C as carbon dioxide, 2. 1.02 Tg C as carbon monoxide, (3) 5.23 x 10-3 Tg C as total particulate matter, 4. 26.1 x 10-3 Tg N as nitrous oxides, 5. various other trace gases. The calculated release of CO2 in this study accounts for only 41% of the estimated Australian contribution to global emmissions from biomass burning, indicating that the Australian contribution may be overestimted.

scholarly journals Evaluation of properties of elastomer seal for fuel systems exposed to effects of rapeseed methyl ester 

2017 ◽  
Vol 63 (No. 3) ◽  
pp. 115-120
Author(s):  
Šleger Vladimír ◽  
Müller Miroslav ◽  
Pexa Martin
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Methyl Ester ◽  
Permanent Deformation ◽  
Diesel Oil ◽  
Negative Influence ◽  
Compression Set ◽  
Rapeseed Methyl Ester ◽  
Elastomer Seal

Elastomer seals in fuel systems have to evince required mechanical properties also at exposure to fuels. The aim of the research was to determine an influence of various concentrations of rapeseed methyl ester (RME) on a change of mechanical properties of sealing O-rings made from polyacrylate elastomer (an indication ACM). A permanent deformation – compression set (CS), a tensile strength and an elongation after the exposure to the tested environment for the time 20 months were evaluated within the experiment. A fall of the tensile strength, the elongation and the permanent deformation – compression set CS was proved depending on the type of the fuel. The increased negative influence of various concentrations of RME (20% to 100%) on the tested properties of the sealing O-rings compared with the diesel oil complying with the standard EN 590:2004 was not proved. So a significant negative influence of degradation aspects on the tested properties of the O-rings of the ACM type (polyacrylate elastomer) was not proved.

scholarly journals Inventory of pollutant emission from motor vehicles in Poland using the COPERT 5 software

2019 ◽  
Vol 178 (3) ◽  
pp. 150-154 ◽  
Author(s):  
Katarzyna BEBKIEWICZ ◽  
Zdzisław CHŁOPEK ◽  
Jakub LASOCKI ◽  
Krystian SZCZEPAŃSKI ◽  
Magdalena ZIMAKOWSKA-LASKOWSKA
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Particulate Matter ◽  
Volatile Organic Compounds ◽  
Nitrogen Oxides ◽  
Organic Compounds ◽  
Relative Increase ◽  
Motor Vehicles ◽  
Pollutant Emission ◽  
Volatile Organic

This article presents results of the inventory of pollutant emission from motor vehicles in Poland. To determine emission from motor vehicles in Poland COPERT 5 software was used for the first time. In addition, a comparison of the national emission from motor vehi-cles in 2016 and in 2015 was included. Pollutants harmful to health were considered primarily: carbon monoxide, organic compounds, nitrogen oxides and particulate matter. Emission of substances contributing to the intensification of the greenhouse effect were also examined: carbon dioxide, ammonia and nitrous oxide. It was found that the relative increase in volume of emission of carbon monoxide and non-methane volatile organic compounds is less than 10%, and nitrogen oxides and particulate matter less than 15%. The relative increase in carbon dioxide emission is approximately 14%, which corresponds to a relative increase in fuel consumption. The relative increase of volume of heavy metal emission is similar. The assessment of the energy emission factor (emission of pollution related to energy equal to used fuel) proves that – amongst pollutants harmful to health – for carbon monoxide and non-methane volatile organic compounds there is a relative reduction by approximately 5% in 2016, and for nitrogen oxides and particulate matter – increase by approximately (3–4)%.

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