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    Wyświetlanie 1-5 z 5
    Tytuł:
    Characteristics of unit emissions "e j" of toxic compounds in vehicles
    Autorzy:
    Ubysz, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/246249.pdf
    Data publikacji:
    2010
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    unit emissions
    characteristics of unit emissions
    passenger vehicles
    Opis:
    This study presents the proposal for calculations of overall characteristics of unit HC emissions from passenger whicles. Inspiration for the project was derived from the author 's own research and the research works by the selected centres, both in Poland and abroad. Overall, (static) characteristics, with maps of unit emissions of HC, CO and NOx were employed as a basis. This assumption is based on different profiles of fuel consumption and emissions in driving and non-driving phases. In calculations for driving conditions, static overall characteristics of unit emissions were complemented with characteristics of changes in DeltaHC, DeltaCO and DeltaNOx for non-stationary engine working conditions. The author based on the results obtained by other authors has already developed these partial characteristics. Development of reliable characteristics requires implementation of expensive research program (in cooperation with main research centres in Poland), which will require changes in a leading control parameter. In particular, uncorrected, corrected, dynamic correction maps for emissions of HC, examples of dynamic characteristics for emissions from vehicles, characteristics of HC emissions for 5 run-up phases in higher gears and engine braking, numbers for vehicle driving and non-driving phases considered in calculations, coverage of operation field for the engine, static overall characteristics of unit HC emissions, effect of equivalence ratio on performance of three-way catalytic exhaust converter are presented in the paper.
    Źródło:
    Journal of KONES; 2010, 17, 4; 537-546
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ stanów pracy silnika o zapłonie samoczynnym na emisję jednostkową zanieczyszczeń
    Impact of diesel engine operating conditions on unit emissions of pollutants
    Autorzy:
    Chłopek, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/973124.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    testy dynamiczne
    emisja zanieczyszczeń
    combustion engines
    engine operating conditions
    static tests
    dynamic tests
    exhaust emissions
    silnik spalinowy
    stan pracy silnika
    testy statyczne
    Opis:
    Właściwości użytkowe silników spalinowych zależą od stanów pracy silników, zarówno od stanów statycznych, jak i od występowania stanów dynamicznych, przy czym stan pracy silnika spalinowego nagrzanego do ustabilizowanej temperatury może być określony przez obciążenie i przez prędkość obrotową. W pracy przedstawiono wyniki badań empirycznych emisji jednostkowej zanieczyszczeń z silnika Cummins 6C8.3 w testach statycznych i dynamicznych, zarówno standardowych, stosowanych w procedurach homologacyjnych, jak i w testach specjalnych, opracowanych dla silników spalinowych maszyn roboczych.
    The performance of internal combustion engines depends on the engine operating conditions, both on the static conditions as well as on the presence of dynamic conditions, where the operating condition of the engine heated to a stable temperature can be determined by the load and the speed. This paper presents the results of empirical studies of unit emissions of pollutants from Cummins 6C8.3 engine in static and dynamic tests, both for standard tests used in certification procedures, as well as for special tests developed for internal combustion engines of work machines.
    Źródło:
    Combustion Engines; 2015, 54, 3; 1094-1102
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of nuclear power unit on decreasing emissions of greenhouse gases
    Autorzy:
    Stanek, W.
    Szargut, J.
    Kolenda, Z.
    Czarnowska, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/240112.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    power plants
    energy policy
    global warming
    greenhouse gasses
    nuclear power
    elektrownie
    polityka energetyczna
    globalne ocieplenie
    gazy cieplarniane
    energia atomowa
    Opis:
    The paper presents a comparison of selected power technologies from the point of view of emissions of greenhouse gases. Such evaluation is most often based only on analysis of direct emissions from combustion. However, the direct analysis does not show full picture of the problem as significant emissions of GHG appear also in the process of mining and transportation of fuel. It is demonstrated in the paper that comparison of power technologies from the GHG point of view has to be done using the cumulative calculus covering the whole cycle of fuel mining, processing, transportation and end-use. From this point of view coal technologies are in comparable level as gas technologies while nuclear power units are characterised with lowest GHG emissions. Mentioned technologies are compared from the point of view of GHG emissions in full cycle. Specific GHG cumulative emission factors per unit of generated electricity are determined. These factors have been applied to simulation of the influence of introduction of nuclear power units on decrease of GHG emissions in domestic scale. Within the presented simulations the prognosis of domestic power sector development according to the Polish energy policy till 2030 has been taken into account. The profitability of introduction of nuclear power units from the point of view of decreasing GHG emissions has been proved.
    Źródło:
    Archives of Thermodynamics; 2015, 36, 1; 55-65
    1231-0956
    2083-6023
    Pojawia się w:
    Archives of Thermodynamics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ definicji zespołu stacjonarnych urządzeń technicznych na kryteria uczestnictwa w systemie handlu uprawnieniami do emisji gazów cieplarnianych
    The Influence of the Definition of Stationary Technical Unit on Meeting the Criteria of Participation in the EU Emission Trading System
    Autorzy:
    Piekut, Maximilian
    Powiązania:
    https://bibliotekanauki.pl/articles/518871.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Jagielloński. Fundacja Utriusque Iuris
    Tematy:
    emissions
    installation
    reduction of emissions
    EU ETS
    technical unit
    Opis:
    The transposition of the EU ETS directive in Poland causes several interpreta- tion problems. The biggest concern is caused by the imprecise definition of the stationary technical unit, which forces the installations’ operators to function in state of uncertainty. The primary reason for this is that the word unit in Polish language might be translated in various manners. The choice of Polish legislator does not allow the operators that have several devices that only jointly meet the requirements of Annex I of the EU ETS directive to have the capability of defining whether they will be regarded as one installation or several technical units that do not meet the participation criteria of EU ETS. The problem of practical nature, which is shown by the response of Ministry of Environment of Republic of Poland to the author’s motion for disclosure of public information. The article focuses on the problem itself, the Ministry of Environment response, as well as de lege ferenda considerations.
    Źródło:
    Forum Prawnicze; 2018, 5 (49); 77-88
    2081-688X
    Pojawia się w:
    Forum Prawnicze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Thermo-economic analysis and environmental aspects of absorption refrigeration unit operation onboard marine vehicles: RO- PAX vessel case study
    Autorzy:
    Ammar, N. R.
    Sediek, I. S.
    Powiązania:
    https://bibliotekanauki.pl/articles/260242.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    ship emissions
    IMO
    lithium bromide-water ARU
    thermodynamic analysis
    economic and environmental analysis
    Opis:
    Marine diesel engines lose a huge amount of fuel heat content in the form of exhaust gas and jacket cooling water, especially onboard high-powered marine vehicles such as Ro-Pax ships. In this paper, the possibility of using the waste heat of marine diesel engines as a source of heat for air conditioning absorption system is investigated. The thermodynamic analysis, in addition to the environmental and economic analysis of the air condition absorption cycle operated with two heat sources using lithium bromide as absorbent, are performed using the Engineering Equation Solver (EES) software. The last 10 years have seen a steady growth in the passenger ferry and Ro-Pax market, with particularly strong growth in passenger numbers. As a case study, a Ro-Pax vessel operating in the Red Sea area is considered, regarding the profitability of using air conditioning absorption system. The results show specific economic benefits of the jacket cooling water operated absorption refrigeration unit (ARU) over the exhaust gas operated unit, with annual costs of capital money recovery of 51,870 $/year and 54,836 $/year, respectively. Environmentally, applying an ARU machine during cruising will reduce fuel consumption by 104 ton/year. This, in turn, will result in reducing NOx, SOx, and CO2 emissions with cost-effectiveness of 7.73 $/kg, 20.39 $/kg, and 0.13 $/kg, respectively.
    Źródło:
    Polish Maritime Research; 2018, 3; 94-103
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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