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Wyświetlanie 1-15 z 336
Tytuł:
Improved method of processing the output parameters of the diesel locomotive engine for more efficient maintenance
Autorzy:
Zvolenský, Peter
Barta, Dalibor
Grenčík, Juraj
Droździel, Pawel
Kašiar, Ľubomír
Powiązania:
https://bibliotekanauki.pl/articles/1841741.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
maintenance
locomotive
diesel engine
control parameters
Opis:
Modernization of aged rolling stock is one of the possibilities to adapt it to the current requirements for better environmental friendliness and economy of railway transport. However, some vehicle upgrades lead to new failures that were not observed in the original vehicles. The cause is the so-called “hybrid design”, built on a combination of original and selected new components. The aim of the work was to improve the situation with frequent failures and unavailability that occur on the modernized locomotive where a new diesel engine and new electronic control system was installed. Within the work, a simplified methodology for evaluating the outputs of diagnostic equipment was developped based on and applied to specific locomotive type and its diesel engine. The methodology resulted in a significant reduction of the time for assessing the condition of the vehicle’s diesel engine and more effective maintenance. The paper also presents other possibilities in the analysis of big data in the maintenance of rolling stock e.g. using fuzzy logic.
Źródło:
Eksploatacja i Niezawodność; 2021, 23, 2; 315-323
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of biodiesel blended fuel on the performance and emission characteristics of diesel engines – a review
Autorzy:
Zheng, Fangyuan
Cho, Haeng Muk
Xu, Changchun
Powiązania:
https://bibliotekanauki.pl/articles/2174181.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
biodiesel
paliwo
emisja spalin
diesel engine
fuel properties
engine performance
exhaust emission
Opis:
The internal combustion engine plays a vital role in transportation, industry, and shipping. However, diesel as one of the main fuels for internal combustion engines, caused many environmental and human health problems. In order to solve the problems, more researchers have been committed to the research of alternative fuels. Biodiesel is a renewable, sustainable alternative fuel, and its characteristics are similar to traditional diesel. It can be mixed with pure diesel. It has been found that a mix with pure diesel in a certain ratio can effectively reduce the negative effects caused by its characteristics, improve the combustion performance, and reduce the NOx and PM emissions. This article mainly reviews the effects of the mixture of biodiesel and diesel on engine combustion characteristics and exhaust emissions, including three parts: part (1) summarizes and analyzes the biodiesel’s production and characteristics, part (2) analyzes the engine’s performance under different working conditions, and part (3) studies and analyzes the exhaust emission under different working conditions.
Źródło:
International Journal of Applied Mechanics and Engineering; 2022, 27, 1; 215--231
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena zużycia paliwa przez silnik o zapłonie samoczynnym przy zasilaniu wybranymi paliwami
Evaluation of fuel consumption of diesel engine powered with chosen fuels
Autorzy:
Zając, G.
Piekarski, W.
Krzaczek, P.
Powiązania:
https://bibliotekanauki.pl/articles/290186.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Inżynierii Rolniczej
Tematy:
paliwo
silnik o zapłonie samoczynnym
biopaliwo
zużycie
estry metylowe
diesel engine
fuel
consumption
biofuel
rape oil
ethyl esters
Opis:
W pracy przedstawiono wyniki badań godzinowego i jednostkowego zużycia paliwa w funkcji mocy efektywnej silnika 2CA90 zasilanego różnymi paliwami. Wybrane paliwa to estry metylowe oleju rzepakowego, mieszanina B5 zawierająca 95% ON i 5% FAME i porównawczo olej napędowy. Badania przeprowadzono na stanowisku dynamometrycznym hamowni silnikowej przy prędkościach obrotowych silnika odpowiadających maksymalnemu momentowi obrotowemu i mocy znamionowej, w pełnym zakresie obciążenia. Dokonano również analizy paliw pod kątem jej zgodności z normą PN 590:2006. Na podstawie przeprowadzonych badań stwierdzono, że zastosowanie do zasilania paliw zawierających estry etylowych kwasów tłuszczowych oleju rzepakowego powoduje zmianę parametrów energetycznych pracy silnika wysokoprężnego.
Results of research of hourly and unitary fuel consumption in a function of effective power of, powered with various fuels, 2CA90 engine were presented in this paper. Following fuels: methyl esters of rape oil, B5 blend containing 95% of diesel fuel (DF) and 5% FAME, were chosen and compared with DF. Research was carried out on a dynamometric engine stand with full range of loads and engine's rotation speed for which maximum torque and rated power were obtained. Analyses of investigated types of fuel and their conformity with PN 590:2006 norm were also conducted. Relying on research results, it was stated that utilization of fuel containing fatty acids methyl esters of rape oil caused change of diesel engine energetic work parameters.
Źródło:
Inżynieria Rolnicza; 2008, R. 12, nr 2(100), 2(100); 323-330
1429-7264
Pojawia się w:
Inżynieria Rolnicza
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Estimation of biodiesel fuel on the basis of rape oil and isopropyl alcohol
Ocena wlasciwosci eksploatacyjnych paliwa oleju napedowego bio na podstawie oleju rzepakowego i alkoholu izopropylowego
Autorzy:
Zaharchuk, V.
Tkachuk, V.
Zaharchuk, O.
Powiązania:
https://bibliotekanauki.pl/articles/791924.pdf
Data publikacji:
2011
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
biodiesel fuel
diesel engine
toxicity
isopropyl ester
methyl ester
rapeseed oil
diesel fuel
operating property
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2011, 11
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Model tests of a marine diesel engine powered by a fuel-alcohol mixture
Autorzy:
Zacharewicz, Marcin
Kniaziewicz, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/2097626.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
model tests
diesel engine
model adequacy assessment
alternative fuels
diagnostics
badania modelowe
silnik Diesla
ocena adekwatności modelu
paliwa alternatywne
diagnostyka
Opis:
The paper presents the results of model and empirical tests conducted for a marine diesel engine fueled by a blend of n-butanol and diesel oil. The research were aimed at assessing the usefulness of the proprietary diesel engine model in conducting research on marine engines powered by alternative fuels to fossil fuels. The authors defined the measures of adequacy. On their basis, they assessed the adequacy of the mathematical model used. The analysis of the results of the conducted research showed that the developed mathematical model is sufficiently adequate. Therefore, both the mathematical model and the computer program based on it will be used in further work on supplying marine engines with mixtures of diesel oil and biocomponents.
Źródło:
Combustion Engines; 2022, 61, 2; 83--88
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cycle-to-cycle variations of a diesel engine operating with palm biodiesel
Autorzy:
Yasin, M. H.
Mamat, R.
Abdullah, A. A.
Abdullah, N. R.
Wyszynski, M. L.
Powiązania:
https://bibliotekanauki.pl/articles/950092.pdf
Data publikacji:
2013
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
cycle-to-cycle variations
biodiesel
combustion
diesel engine
Opis:
Biodiesel is one of biodegradable and renewable fuel, which is originated from vegetable oil or animal fats. Different fuel properties of biodiesel produce different combustion characteristics which slightly differ to mineral diesel. Combustion studies on palm-biodiesel and mineral diesel were conducted using a multi-cylinder diesel engine operating at medium engine load at 2500 rpm. The engine was water cooled inline four cylinder diesel engines without exhaust gas recirculation system. Cycle-to-cycle variations of peak cylinder pressure and mean indicated pressure of the test fuels were determined for the combustion characteristics of diesel engine. In-cylinder pressure data for the 200 consecutive cycles were determined using a Kistler pressure transducer and recorded into a combustion analyser. Three different engine loads: 20%, 40% and 60% were selected in this study with a constant engine speed of 2500 rpm. The results show that at lower load, in-cylinder pressure variations for palm biodiesel were lower compared to mineral diesel. However, at medium and high loads, palm biodiesel has dominated the peak cylinder variations. Different combustion cyclic variations for mineral diesel and B100 are observed and generally influenced by psychochemical properties differences including viscosity and density of fuel.
Źródło:
Journal of KONES; 2013, 20, 3; 443-450
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multi-criteria fuel system optimization with an electronic control unit
Autorzy:
Wróblewski, A.
Powiązania:
https://bibliotekanauki.pl/articles/133240.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
diesel engine
fuel system
solenoid injection
optimization
silnik spalinowy
system paliwowy
wtrysk elektromagnetyczny
optymizacja
Opis:
This paper presents the results of the multi-criteria synthesis of a diesel engine fuel system using the optimization method. The optimization criteria, functional restrictions and quality criteria have been selected. The efficiency of the proposed method was demonstrated using the example of a diesel engine with the Common Rail system.
Źródło:
Combustion Engines; 2017, 56, 1; 51-55
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Exhaust emission features of variable compression ratio (VCR) diesel engine
Autorzy:
Woś, P.
Kuszewski, H.
Ustrzycki, A.
Powiązania:
https://bibliotekanauki.pl/articles/247640.pdf
Data publikacji:
2010
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
diesel engine
compression ratio
variable compression ratio VCR
exhaust emission
toxic compounds
Opis:
One of the important design parameters for internal combustion engines is the geometric compression ratio epsilon. It is defined by the ratio of the maximum volume of the combustion chamber Vmax at the bottom dead centre (BDC) piston position and a minimum volume of the combustion chamber Vmin at the top dead centre (TDC) piston position. Conventional engines have this parameter set unchangeable, what is not the solution ensuring optimal benefits coming from the heat release in the combustion process, especially under altering conditions of load and speed in which they perform powering the road vehicles. It is reflected mainly in exhaust emission problem. Despite a considerable progress, further improving the ecological and energetic performances of the piston engines faces severe system limits, elimination of which requires major changes in engine design, including conversion the fixed compression ratio into the flexible one. For such innovative engine designs with so-called variable compression ratio VCR feature the geometric compression ratio parameter is as the one of the operation regulators. Due to the new development prospect the paper scope is an analysis and showing some results for the impact of compression ratio on the emissions of selected exhaust harmful components for a direct injection diesel engine. The schematics and prototype solutions for VCR technology are briefly presented too.
Źródło:
Journal of KONES; 2010, 17, 3; 521-526
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
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:
Biogas as a fuel for diesel engines
Autorzy:
Wierzbicki, S.
Powiązania:
https://bibliotekanauki.pl/articles/246845.pdf
Data publikacji:
2012
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
biogas
methane
diesel engine
dual-fuel supply system
Opis:
The pursuit of reduced greenhouse gas emissions, as well as the increased share of renewable fuels in the overall energy balance has led to a search for alternative energy sources. One of the fuels on which great hopes are set as fuel for engines is biomethane or biogas, whose main component is methane. Biogas can be obtained from different products by using different technologies, so that it has potential as a widelyavailable fuel, which is quite easy to produce. The percentage of methane in biogas depends on the technology for obtaining biogas and ranges from 35% to around 75%. The largest biogas sources can be animal farms, where it is obtained from animal excrement. Another source is sewage treatment plants and rubbish dumps, where substantial quantities of biogas are obtained as a result of natural processes occurring in waste dumping sites or sewage. Biogas can also be acquired from waste obtained from fruit and vegetable processing as well as waste from meat plants. This paper examines the possibility of using biogas as a fuel for diesel engines. In these engines, the combustion of biogas (methane) requires the application of a dual-fuel supply system in which liquid fuel initiating gas fuel selfignition will be injected into the combustion chamber along with methane. The paper also contains example results showing the effect of the methane dose on the course of the combustion process in diesel engines.
Źródło:
Journal of KONES; 2012, 19, 3; 477-482
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of the parameters of pilot dose injection in a dual fuel diesel engine on the combustion process
Autorzy:
Wierzbicki, S.
Powiązania:
https://bibliotekanauki.pl/articles/246181.pdf
Data publikacji:
2011
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
diesel engine
injection pressure
injector opening time
fuel injection advance angle
course of combustion
Opis:
The paper presents the effect of the main parameters of pilot dose ignition: injection pressure, injection advance angle and injector opening time on the combustion process in a dual fuel diesel engine. The study continues the research conducted at the Department of Mechatronics of the University of Warmia and Mazury, Olsztyn, on optimisation of dual fuel self-ignition engines with CNG as the main fuel dose. The results presented in the paper were obtained with a single-cylinder engine HATZ 1B40, adapted to methane combustion. The results presented in the paper show the recorded changes of pressure in the combustion chamber with a constant fuel pilot dose and different ignition advance angles. Scheme of fuelling and measurement systems, view of engine indicating system, average changes of pressure in the combustion chamber, average changes of pressure in the combustion chamber and average changes of pressure in the combustion chamber at dual fuel engine supply with diesel oil at varied pilot dose injection angle, effects of advance angle of the pilot dose injection on the maximum pressure of combustion, at various proportions of diesel oil and CNG, average changes of pressure in the combustion chamber at double-fuel engine fuelled with diesel oil and various shares of methane in the dose powering the engine, CNG consumption as a function of the advance angle of the pilot dose injection for various shares of the pilot dose are presented in the paper.
Źródło:
Journal of KONES; 2011, 18, 3; 499-506
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of chromatography to the analysis of quality of RME type biofuels obtained from pure, fresh rapeseed oil and from the waste (previously fried) oil of the same origin
Zastosowanie chromatografii do analizy jakosci biopaliw typu RME uzyskanych z oleju czystego oraz zuzytego
Autorzy:
Wcislo, G.
Strzelczyk, M.
Powiązania:
https://bibliotekanauki.pl/articles/793751.pdf
Data publikacji:
2012
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
biodiesel fuel
biofuel
fatty acid methyl ester
rapeseed methyl ester
gas chromatography
diesel engine
thermal condition
physical property
chemical property
rapeseed oil
transesterification process
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2012, 12, 2
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of the impact of the type of animal fat used for production of biofuels on the fractional composition of AME
Autorzy:
Wcisło, G.
Labak, N.
Powiązania:
https://bibliotekanauki.pl/articles/410965.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:
biodiesel
AME
animal fat methyl esters
diesel engine
fractional composition
temperature distillation
estry metylowe tłuszczu zwierzęcego
silnik Diesla
skład frakcyjny
temperatura destylacji
Opis:
The aim of the study was to determine the impact of the frying process on the fractional composition of AME Biodiesel in comparison to the AME obtained from unused (fresh) animal fat. The fresh animal fat was divided into two portions. One was used for frying chips at 63°C for a period of 4 hours. The study showed the AME biodiesel produced from unused (pure) animal fat generally has better distillation properties. The temperatures at the start of distillation were similar for both of the AMEs. Within the 45-60% mid-range temperatures, the AME produced from the used cooking animal fat was characterized by higher distillation temperatures for the same volume of fuel. The largest differences were observed for the 85% and 95% distillation temperatures and the final temperature of the distillation process. This may testify to lower purity of the AME produced from the used cooking oil. In such a biofuel may consist less volatile mono-diglycerides or other chemicals which remain in the oil after frying. It must be said, though, these are not solid particles, as those were separated from the oil through filtration.
Źródło:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2017, 6, 1; 111-114
2084-5715
Pojawia się w:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of the impact of the type of camelina oil used for production of biofuels on the fractional composition of CSME
Określenie wpływu rodzaju użytego oleju rzepakowego do produkcji biopaliw na skład frakcyjny CSME
Autorzy:
Wcislo, G.
Pracuch, B.
Powiązania:
https://bibliotekanauki.pl/articles/792893.pdf
Data publikacji:
2014
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
biodiesel production
biodiesel fuel
biofuel
gold of pleasure oil
diesel engine
fractional composition
distillation
temperature
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2014, 14, 4
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of the rheological properties of biofuels containing SBME biocomponent
Określenie własności reologicznych biopaliw zawierających biokomponent SBME
Autorzy:
Wcislo, G.
Powiązania:
https://bibliotekanauki.pl/articles/793262.pdf
Data publikacji:
2014
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
diesel engine
biodiesel fuel
biofuel
biocomponent
dynamic viscosity
rheological property
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2014, 14, 4
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 336

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