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Wyszukujesz frazę "Lasocki, M." wg kryterium: Autor


Wyświetlanie 1-3 z 3
Tytuł:
The effect of alternative fuels injection timing on toxic substances formation in CI engines
Autorzy:
Wojs, M. K.
Orliński, P.
Lasocki, J.
Powiązania:
https://bibliotekanauki.pl/articles/133347.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
biofuels
diesel engine
toxic substances
biopaliwa
silnik spalinowy
substancje toksyczne
Opis:
The present study describes selected issues associated with the emission level in toxic exhaust gases and fuel injection timing. The study was focused on the following types of fuels: Diesel oil (the base fuel) and the other fuels were the mixture of fatty acid methyl ester with Camelina (L10 – diesel fuel with 10% V/V FAME of Camelina and L20 – diesel fuel with 10% V/V FAME of Camelina) was used. Fuel injection advanced angle was set for three different values – the factory setting – 12° before TDC, later injection – 7° and earlier injection – 17°. The most important conclusion is that in most measurement points registered in the same engine operating conditions, the concentration of fuel NOx in L10 and L20 increased but PM emissions decreased which is caused by active oxygen located in the internal structure of the fuel. This fact contributes to the rise in temperature during the combustion process. At the same time factory settings of the angle makes NOx emissions lower and close to reference fuel.
Źródło:
Combustion Engines; 2017, 56, 1; 73-76
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of the impact of the hydration degree of bioethanol on the operation parameters of the spark-ignition engine
Autorzy:
Owczuk, M.
Matuszewska, A.
Odziemkowska, M.
Bednarski, M.
Wojs, M. K.
Lasocki, J.
Powiązania:
https://bibliotekanauki.pl/articles/133652.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
bioethanol
water content
spark-ignition engine
engine performance
bioetanol
zawartość wody
silnik o zapłonie iskrowym
osiągi silnika
Opis:
The article presents an overview of methods for the production of bioethanol and the possibility of its use to power internal combustion engines. The effects of supplying spark-ignition engine with bioethanol having various degrees of hydration were examined experimentally on the engine dynamometer. The measurement results were referred to the anhydrous bioethanol, which is used widely as petrol biocomponent and compared in terms of the course of the pressure in the combustion chamber of the engine as well as engine performance parameters – torque and power. It was found that with the decrease in alcohol concentration, the performance of the spark ignition engine deteriorated. The reduction of in-cylinder pressure was proportional to the increase in the water content in the fuel. No significant changes in the general shape of in-cylinder pressure curves were observed. Engine torque and power decreased with an increase in the water content in the fuel, especially at high engine speed. It has been stated that supplying the engine with bioethanol containing up to 6% (v/v) of water does not result in significant losses in engine performance.
Źródło:
Combustion Engines; 2017, 56, 2; 71-75
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hydroxyl radicals as an indicator of knocking combustion in the dual-fuel compression-ignition engine
Autorzy:
Lasocki, J.
Orliński, P.
Wojs, M. K.
Owczuk, M.
Matuszewska, A.
Powiązania:
https://bibliotekanauki.pl/articles/133881.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
knocking combustion
dual-fuel engine
radicals
hydroxyl radicals
spalanie stukowe
silnik dwupaliwowy
rodniki hydroksylowe
Opis:
The occurrence of knocking combustion is one of the basic problems of dual-fuel compression-ignition engines supplied with diesel oil and gaseous fuel. In order to detect this phenomenon and evaluate its intensity, several methods are commonly used, including the analysis of pressure of working medium in the combustion chamber of the engine or vibrations of certain engine components. This paper discusses the concept of using mass fraction of hydroxyl radicals as the indicator of the occurrence of knocking combustion. Current knowledge on the conditions of hydroxyl radical formation in the engine combustion chamber has been systematized and the results of research on this subject have been presented. Theoretical considerations are illustrated by exemplary results of simulation studies of the combustion process in a dual-fuel compression-ignition engine supplied with diesel oil and methane. The conclusions drawn may be useful for the development of dual-fuel engine control systems.
Źródło:
Combustion Engines; 2017, 56, 1; 178-185
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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