Tag Archives: diesel

977-984 A. Birkavs and R. Smigins
An assessment of stratification of exhaust gases from gasoline and diesel engine
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An assessment of stratification of exhaust gases from gasoline and diesel engine

A. Birkavs* and R. Smigins

Latvia University of Life Sciences and Technologies, Faculty of Engineering, Motor Vehicle Institute, 5 J.Cakstes blvd, LV3001 Jelgava, Latvia
*Correspondence: aivars.birkavs@llu.lv

Abstract:

Research the aim of which was to find out stratification of main exhaust components outside the tailpipe of the vehicle was realized in Alternative Fuels Research Laboratory of Latvia University of Agriculture using two commercially produced testing vehicles (diesel and gasoline) and exhaust gas analytical system AVL SESAM FTIR. Additionally there was created a gas testing camera allowing to measure concentration of exhaust gas components in different heights and windless conditions. Regulated and unregulated emissions from gasoline and diesel engines were measured and discussed. Results obtained during the measurements showed main stratification of toxic components from both engine types from 0.6 to 1.1 m from the ground making a risk to get some health problems by inhalation, especially for children. Main components (NOx, CO, HC) of exhaust gases of gasoline engines stay in the air for about 15 minutes in height of 1.0 m from the ground level, while methane and acetylene stay in the air for a 15 minutes in height of 0.6 m from the ground level.

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406–416 V. Hönig,, Z. Linhart, P. Procházka and K. Pernica
Regulatives for biorefineries
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Regulatives for biorefineries

V. Hönig¹,*, Z. Linhart², P. Procházka³ and K. Pernica¹

¹ University of Economics, Faculty of Business Administration, Department of Strategy, W. Churchill Sq., CZ130 67 Prague 3, Czech Republic
² University of Economics and Management, Department of Marketing, Nárožní 2600/9A, Prague 5, Czech Republic
³ Czech University of Life Sciences Prague, Faculty of Economics and Management, Department of Economics, Kamýcka 129, CZ165 21 Prague 6, Czech Republic
*Correspondence: vladimir.honig@vse.cz

Abstract:

The relationship between uncertainty and risk–taking behaviour towards innovations and Common Market protection are investigated in this article. Therefore, the aim of this article is to assess points of control over market regulation protecting innovative products. It was found that risk of creative destruction due to implementation of innovations is increased by regulators due to antimonopoly metric they use. EU fiscal policy implementation in renewable fuels in Czech Republic of both EU and CZ calculations is compared. Historical data has shown that regulators have collapsed market of high condensed biofuels. Pattern of fine calculation has explained a market collapse. Comparison of excise duty of favoured biofuels was compared with subsidies for photovoltaics. Substitution of former fossil fuels taking into account excise duty and subsidies of alternative or renewable energies is less market distorting than recent tariffs of excise duty and fines to first generation biofuels.

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400–406 V. Hönig, Z. Linhart and M. Orsák
Effect of gasoline contamination on the quality of arctic diesel fuel
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Effect of gasoline contamination on the quality of arctic diesel fuel

V. Hönig¹*, Z. Linhart² and M. Orsák¹

¹Czech University of Life Sciences Prague, Faculty of Agrobiology, Food and Natural
Resources, Department of Chemistry, Kamýcka 129, CZ16521, Prague 6, Czech Republic
²Czech University of Life Sciences Prague, Faculty of Economics and Management,
Department of Management, Kamýcka 129, CZ16521, Prague 6, Czech Republic
*Correspondence: honig@af.czu.cz

Abstract:

Fuel quality is affected predominantly during its transport between producer and user as hired transporting companies may use one transport vehicle for more different fuels. Therefore, gasoline from previous transport may cause contamination of diesel fuel in next transport. Many drivers add gasoline as additive to diesel fuel to improve start of engine avoiding difficulties of cold winter temperatures. Therefore, the objective of this article is to assess maximum gasoline content added still compliant with default values of standard EN590 and values certified by producer. Only 2% maximal gasoline content in arctic diesel fuel was found safe for both machine and operator. Distillation curve, kinematic viscosity, density, lubricity and cetane index were influenced unimportantly. Cloud point, CFPP were not changed at all.

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