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Wyszukujesz frazę "hydrorafinowany olej roślinny" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Environmental assessment of the exploitation of diesel engines powered by biofuels
Autorzy:
Grzelak, Paulina Luiza
Żółtowski, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/2097454.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
biorefineries
biofuels
green diesel
bioeconomy
hydrotreated vegetable oil
biorafineria
biopaliwa
zielony diesel
biogospodarka
hydrorafinowany olej roślinny
Opis:
Many factors, such as climate change and the associated risk of increasing the average temperature on the globe, energy security and the finishing of fossil fuel deposits have caused other renewable energy sources to be sought. Transport, as a branch of industry largely responsible for air pollution and greenhouse gas emissions in large cities, requires the necessary changes in the way vehicles are powered. Until now, the fuels available at petrol stations use admixtures of first generation biofuels, such as bioethanol, as a 5% additive to motor gasolines and biodiesel (FAME) as a 7% additive to diesel oil. The article presents the idea of biorefinery installations, specifies the spectrum of substrates of the second and advanced generations, which may be a biorefinery input, including waste oils that can be used to produce hydrogenated HVO vegetable oils and other high-value products. The paper presents he existing biorefinery plant in Venice resulting from the transformation of a conventional oil refinery in which HVO fuel is produced. The article also presents the parameters of this new biofuel and compared them with the parameters of other fuels used to power self-ignition engines, such as FAME and diesel, along with discussing the prospects for HVO fuel development in Europe.
Źródło:
Combustion Engines; 2020, 59, 1; 31--35
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative study of combustion and emissions of diesel engine fuelled with FAME and HVO
Autorzy:
Hunicz, Jacek
Krzaczek, Paweł
Gęca, Michał
Rybak, Arkadiusz
Mikulski, Maciej
Powiązania:
https://bibliotekanauki.pl/articles/2097506.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
diesel engine
renewable fuels
HVO
hydrotreated vegetable oil
emissions
silnik Diesla
paliwa odnawialne
hydrorafinowany olej roślinny
emisje
Opis:
This study investigates combustion and emission characteristics of a contemporary single-cylinder compression ignition engine fuelled with diesel, fatty acid methyl esters (FAME) and hydrotreated vegetable oil (HVO). These two drop-in fuels have an increasing share in automotive supply chains, yet have substantially different physical and auto-ignition properties. HVO has a lower viscosity and higher cetane number, and FAME has contrary characteristics. These parameters heavily affect mixture formation and the following combustion process, causing that the engine preoptimized to one fuel option can provide deteriorated performance and excess emissions if another sustainable option is applied. To investigate the scale of this problem, injection pressure sweeps were performed around the stock, low NOx and low PM engine calibration utilizing split fuel injection. The results showed that FAME and HVO prefer lower injection pressures than diesel fuel, with the benefits of simultaneous reduction of all emission indicators compared to DF. Additionally, reduction of injection pressure from 80 MPa to 60 MPa for biodiesels at low engine load resulted in improved brake thermal efficiency by 1 percentage point, due to reduced parasitic losses in the common rail system.
Źródło:
Combustion Engines; 2021, 60, 1; 72--78
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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