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Content available Environmental analysis of the traffic closure on Piotrowo and Berdychowo streets in Poznań
Kozak Miłosław, Kryger Tomasz, Siejka Piotr
Combustion Engines
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2022
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R. 61, nr 3
18--22
EN
The article deals with the ecological assessment of the potential road investment, which is the closure of Piotrowo and Berdychowo streets within the campus of the Poznań University of Technology. The research was carried out on a simulation model of the city of Poznań with the use of PTV software. Research has shown that the closure of these streets has virtually no impact on city-wide emissions. However, the emissions deterioration takes place on a local scale, i.e. in the vicinity of the campus of the Poznań University of Technology and on most of the streets leading to it.
2
Content available Soot contamination of engine oil - the case of a small turbocharged spark-ignition engine
Kozak Miłosław, Siejka Piotr
Combustion Engines
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2020
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R. 59, nr 3
28--32
EN
The paper presents the results of thermogravimetric tests of engine oil used in a small turbocharged spark-ignition engine. The main observation from the research was a significant soot contamination of engine oil, that appears even at its low mileage. This indicates that also in the case of port fuel injection spark-ignition engine, high particulate matter emissions may occur. A rapid soot contamination of the oil in this engine indicates that the oil change interval should be shortened.
3
Content available Ethyl alcohol as a fuel for contemporary internal combustion engines
Kozak Miłosław
Diagnostyka
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2019
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Vol. 20, No. 2
27--32
EN
The article presents the conditions for the use of ethyl alcohol as a component and a sole fuel for internal combustion engines. Methods of ethanol production, its properties and the benefits and risks associated with using it as engine fuel have been described. The variants of commercial ethanol fuels allowed by law have also been presented. Ecological aspects of the use of ethanol fuels for modern internal combustion engines were presented. The opinion was expressed that although ethanol is used in bulk as a component of gasolines, its use as a self-contained fuel is and probably will continue to be small in the near future.
PL
W artykule przedstawiono uwarunkowania stosowania alkoholu etylowego jako składnika oraz samodzielnego paliwa do silników spalinowych. Opisano metody produkcji etanolu, jego właściwości oraz korzyści i zagrożenia związane ze stosowaniem go jako paliwa silnikowego. Zaprezentowano dopuszczalne prawem warianty handlowych paliw etanolowych. Przedstawiono ekologiczne aspekty stosowania paliw etanolowych do współczesnych silników spalinowych. Wyrażono opinię, iż mimo, że etanol stosowany jest masowo jako komponent benzyn silnikowych, to jego zastosowanie jako samodzielnego paliwa jest i prawdopodobnie w najbliższej przyszłości będzie niewielkie.
4
Content available A comparison of thermogravimetric characteristics of fresh and used engine oils
Kozak Miłosław
Combustion Engines
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2019
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R. 58, nr 3
289--292
EN
The requirements set for engine oils are nowadays very high, varied, often contradictory and significantly go beyond the classic functions of engine oils. Also for the testing of engine oils, many different and advanced research methods are currently used. This article describes tests of fresh and used oil from a diesel engine using thermogravimetric analysis. This method was also used to determine the soot content of the used oil. The tests showed that the thermograms of fresh and used oil are similar, however in the oil used in the diesel engine the soot content increases.
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