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Wyświetlanie 1-3 z 3
Tytuł:
Analysis concerning possibilities of adjustability of cruise ferries and Ro-Ro vessels operating on the Baltic Sea to the requirements of Annex VI of the MARPOL convention
Autorzy:
Giernalczyk, M.
Wojciechowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/247480.pdf
Data publikacji:
2016
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
cruise ferry
ro-ro vessel
toxic compounds
carbon dioxide
air pollution
environmental protection
fuel-water emulsion
Opis:
The goal of the paper is to focus on the problem of emission of harmful compounds e.g. NOx, SOx and CO2 from seagoing ships to environment. The VI Amendment to MARPOL Convention concerning prevention against air pollution by seagoing ships, brought into practice in May 19th 2005, forced ship owners to use means for reduction of environment harmful substances emission to atmosphere. They may comprise construction and operating methods. Energy Efficiency Design Index (EEDI) is one of the tools enabling implementation of the above-mentioned regulations, compulsory to all new design and build ships. However, for units already in operation, the problem requires a different approach. The article presents various methods of reduction of toxic substances and CO2 by seagoing vessels in order to adapt to the requirements of the Convention and other legal regulations in this regard. As an example, the analysis has been presented concerning possibilities of adjustability of cruise ferries and Ro-Ro vessels operating on the Baltic Sea to the requirements of Annex VI of the MARPOL Convention. Some possible solutions have been shown focusing on selection of system of combustion of hydro-fuel emulsion in main drive engine. Article contains description of introducing water to the combustion chamber methods and water influence on the combustion process.
Źródło:
Journal of KONES; 2016, 23, 3; 143-150
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
BMD bio - fuel for diesel engines
Autorzy:
Sitnik, L.
Malinowski, A.
Matuszewska, A.
Biedrzycki, J.
Powiązania:
https://bibliotekanauki.pl/articles/247980.pdf
Data publikacji:
2012
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
road transport
biobutanol
rapeseed oil (RO)
bio-fuel
combustion engines
air pollution
environmental protection
Opis:
The paper regards the use of bio-blends consisting of vegetable oil and higher alcohol (biobutanol) as a new component of diesel fuels. The use of rapeseed oil as one of the components eliminates the need energy-intensive conversion rapeseed oil to FAME. The use of higher alcohol, such as a butanol obtained directly from biomass is in accordance with requirements of the EU on the promotion of renewable energy resources. Experiments on chassis dynamometer with fuels containing 20% by volume bio-blend (BM) and 80% of diesel fuels (D) were performed. Main parameters of engine (power output, torque, specific fuel consumption) and the main exhaust gas components (THC, CO, NOx and PM) showed very promising results. The properties of different alcohols and engine fuels, properties of investigated fuels, examples of investigations results on the car test chassis bed by NEDC test load and by fuelling the engine with investigated bmd20 and standard diesel fuel, relatives change of pollutants emission and fuel consumption by fuelling the car engine with BMD20 and Diesel fuel, the differences in emission and fuel consumption during fuelling the car engine with BMD20 and Diesel fuel recorded during the test bed investigation of the car, relatives change of pollutants emission and fuel consumption during engine fuelling with BMD20 and Diesel fuel are presented in the paper.
Źródło:
Journal of KONES; 2012, 19, 1; 365-370
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of rapeseed oil blending with ethanol on engine performance and exhaust emissions
Autorzy:
Labeckas, G.
Slavinskas, S.
Pauliukas, A.
Powiązania:
https://bibliotekanauki.pl/articles/246446.pdf
Data publikacji:
2007
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
diesel engine
rapeseed oil (RO)
ethanol
effective parameters
emissions
smoke opacity
Opis:
The article presents the bench testing results of a four stroke, four cylinder, direct injection, unmodified, naturally aspirated diesel engine operating on neat rapeseed oil (RO) and its 2.5vol% (ERO2.5) and 7.5vol percent (ERO7.5) blends with ethanol. The purpose of the research was to investigate the effect of ethanol inclusion in the RO and preheating temperature on bio-fuel viscosity, engine brake power, specific fuel consumption, break thermal efficiency and emission composition changes, especially NO, NO2, NOx, CO, CO2, HC and smoke opacity of the exhausts. Inclusion in the RO 2.5 and 7.5vol% of ethanol the blend viscosity at ambient temperature of 20 centigrade diminishes by 9.2 and 28.3%. During operation under constant air-to-fuel equivalence ratio gamma = 1.6, blends ERO2.5 and ERO7.5 ensure the brake mean effective pressure (bmep) lower at the maximum torque 1800 min-1 by 0.5 and 2.3% (bmep=0.770 mpa) and at rated 2200 min1 speed by 2.4 and 9.1% (bmep=0.740 mpa), correspondingly, than that of neat RO case. The bsfc at maximum torque (248.7 g/kwh) and rated power (247.5 g/kwh) for blends ERO2.5 and ERO7.5 is higher by 1.3-4.4% and 4.2-10.7% and the brake thermal efficiency lower by 0.5-1.5% and 3.3-7.6%, respectively. The tests revealed that during operation of the fully loaded engine at rated 2200 min-1 speed, ethanol inclusion in the RO up to 7.5vol% diminishes NO, nox, HC, CO2 emissions, smoke opacity and temperature of the exhausts however it may increase simultaneously NO2, NO2/NOx and CO emissions.
Źródło:
Journal of KONES; 2007, 14, 3; 331-338
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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