Temat: auto transport - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Time-dependent problem for determination of exhaust concentration in urban transport system
Autorzy:: Grashin, S.
Rimshans, J. S.
Kopytov, A. E.
Guseynov, S. E.
Schiptsov, O. V.
Powiązania:: https://bibliotekanauki.pl/articles/312659.pdf
Data publikacji:: 2010
Wydawca:: Instytut Naukowo-Wydawniczy "SPATIUM"
Tematy:: transport miejski
ekologia miasta
stężenie spalin
prędkość przepływu powietrza
auto transport
urban ecology
time-dependent mathematical model
exhaust concentration
airflow velocity
Opis:: The paper proposes the 3-D mathematical model for analytic determination of exhaust concentration dynamics in the city regions under a priori information on airflow velocity. In this model it is provided that the turbulent and molecular diffusion coefficient changes depending on the vertical remoteness above the ground surface. The numerical example of problem solving is presented. The created model can be used for solutions of operative problems on urban traffic organization, of long-term planning of urban agglomeration development and new highway building.
Źródło:: Autobusy : technika, eksploatacja, systemy transportowe; 2010, 11, 6
1509-5878
2450-7725
Pojawia się w:: Autobusy : technika, eksploatacja, systemy transportowe
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Motor transport influence decrease on environment by perfecting autoservice system
Autorzy:: Mavrin, V.
Makarova, I.
Khabibullin, R.
Buyvol, P.
Powiązania:: https://bibliotekanauki.pl/articles/374277.pdf
Data publikacji:: 2011
Wydawca:: Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:: transport motorowy
środowisko
auto serwis
autoservice
motor transport
environment
Opis:: In the article for motor transport influence decrease on the environment it is offered to perfect an autoservice system in two directions: to optimize autoservice enterprises territorial accommodation and to increase an internal efficiency of organization and operation of enterprises. The first way means rational territorial accommodation of autoservice center with taking into account of ecological factors for an even distribution of autoservice centers load on environment. The second way demands creation and intrusion on autoservice centers of an ecological management system with for a decrease by centers of pollutants emissions volumes in environment.
Źródło:: Transport Problems; 2011, 6, 3; 109-113
1896-0596
2300-861X
Pojawia się w:: Transport Problems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: A study of combining gasoline engine downsizing and controlled auto - ignition combustion
Autorzy:: Moxey, B.
Cairns, A.
Ganippa, A.
Zhao, H.
Bassett, M.
Powiązania:: https://bibliotekanauki.pl/articles/248026.pdf
Data publikacji:: 2012
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: road transport
combustion engines
fuel economy
controlled auto-ignition
downsizing
Opis:: In recent years European automotive CO2 emissions targets have largely been met through increased diesel sales. However, the distillation of crude oil results in high proportions of both gasoline and diesel fuel and ultimately this has resulted in Europe being "diesel lean" at times. In order to meet future global emissions goals, in the short term it will be necessary to improve the fuel consumption of the gasoline engine and in the longer term source sustainable alternatives to crude oil. The objective of the current work was to investigate the optimum trade-off between the opposing engine operating requirements of gasoline engine downsizing and Controlled Auto-Ignition (CAI) combustion for use in a family-sized passenger car. Experimental fuel consumption and emissions data were produced for four sizes of spark ignition engine, varying from 1 to 2 litres in capacity. The additional benefits of two experimentally developed CAI operating methodologies were evaluated in each engine using drive cycle simulation software. The first CAI mode was based on novel use of combined internal and external EGR to attain higher loads. The second involved the adoption of turbocharging at part-load for yet higher output via so-called lean-boosted CAI. It was concluded that, for such a vehicle, a compromise exists where best fuel economy can be obtained from a moderately downsized CAI-capable engine. Compared to the baseline 2 litre engine, it was possible to obtain fuel economy benefit equivalent to that offered from an aggressively downsized 1 litre unit but using a moderately downsized 1.4 litre CAI engine, without the need for any complex boosted operation or expensive emissions aftertreatment systems. As capacity was reduced below 1.4 litres, the benefit of CAI diminished at an accelerated rate due to progressive failure to capture key higher load sites visited across the European drive cycle.
Źródło:: Journal of KONES; 2012, 19, 1; 289-300
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki