Temat: transport cycle - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Analysis of the ecological effectiveness of passenger transport by jets of various sizes
Autorzy:: Kardach, Monika
Galant, Marta
Fuć, Paweł
Powiązania:: https://bibliotekanauki.pl/articles/133210.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:: LTO cycle
jet aircraft
air transport emission
cykl LTO
samolot odrzutowy
emisja z transportu lotniczego
Opis:: The article’s aim was to compare an ecological effectiveness of a common jetliner with 189 passenger capacity flying on two CFM engines and a very light jet business aircraft designed to carry up to 8 people on board. The carried-out analysis showed that the NO_x emission per passenger in Very Light Jet (VLJ) is three times higher than in common jet airliner, furthermore there is 15 times difference in CO emission. Based on the results of the analysis, it can be stated that it is appropriate to extend the certification of engines to smaller units, as well as to adjust the LTO test beyond laboratory conditions.
Źródło:: Combustion Engines; 2019, 58, 3; 252-256
2300-9896
2658-1442
Pojawia się w:: Combustion Engines
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Study of Atkinson cycle in two-stroke diesel engine with opposed pistons
Autorzy:: Mitianiec, Władysław
Powiązania:: https://bibliotekanauki.pl/articles/133583.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:: transport
two-stroke opposite piston engine
Atkinson cycle
scavenging
timing phases
silnik o tłokach przeciwbieżnych
obieg Atkinsona
wymiana ładunku
Opis:: The paper presents possibilities of change working parameters of two-stroke diesel engine with opposed pistons. Obtaining of higher engine efficiency is realized by applying of Atkinson cycle. Modification of scavenging process by changing pistons' position connecting with two crankshafts enables asymmetrical scavenge timing. Decreasing of shorter time of closing exhaust ports before compression process and longer expansion process give higher engine work and with high charging ratio increases engine power. These types of engines are recently recommended for power plant stations. The paper includes full analysis of engine work with scavenge and combustion processes for different timing phases based on geometry of the CI Leyland L60 engine by using of CFD modelling and own 0D model. Simulation tests indicate a high scavenge efficiency, good penetration of injected fuel and fast combustion process. The work contains figures of pressure, temperature traces and emission of main chemical species in exhaust gases with comparison of engine works for different timing phases. Atkinson cycle in two-cycle work of engine and full combustion process enables to achieve high total efficiency. The study is an input for realization of such processes in a future of power plant engines with different fuelling systems.
Źródło:: Combustion Engines; 2019, 58, 3; 121-128
2300-9896
2658-1442
Pojawia się w:: Combustion Engines
Dostawca treści:: Biblioteka Nauki

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