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Tytuł:
Kierunek wiatru jako czynnik determinujacy poziom imisji tlenku i ditlenku azotu
Autorzy:
Warminski, K
Rogalski, L
Powiązania:
https://bibliotekanauki.pl/articles/806575.pdf
Data publikacji:
2006
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
monitoring zanieczyszczen
tlenek azotu
zanieczyszczenia komunikacyjne
transport drogowy
wiatry
zanieczyszczenia powietrza
dwutlenek azotu
emisja zanieczyszczen
Olsztyn-Kortowo
kierunek wiatru
pollution monitoring
nitrogen dioxide
traffic pollutant
road transport
wind
air pollutant
pollutant emission
Olsztyn city
wind direction
Opis:
Głównym źródłem NOₓ (NO i NO₂) jest działalność człowieka (energetyka, transport), a w mniejszym stopniu procesy naturalne. Tlenek azotu powstaje w wysokich temperaturach, głównie w procesach spalania paliw. W atmosferze ulega on utlenianiu ozonem lub tlenem atmosferycznym do ditlenku azotu, a następnie do azotanów. Badania wykonano w okresie od 10.02. do 31.12.2005 r. wykorzystując stację monitoringu imisji zanieczyszczeń powietrza w Kortowie. Ciągły pomiar stężenia NO i NO₂ wykonywano analizatorem chemiluminescencyjnym MLU 200E (API-Teledyne, Inc. USA; dolny próg wykrywalności 0,4 ppb), a parametrów meteorologicznych zestawem firmy Laboratori di Strumentazione Industriale s.p.a. (Włochy). Największe stężenia NO₂ (rzędu 12 µg·m⁻³) w miesiącach zimowych notowano w przypadku wiatrów wiejących z kierunku lokalizacji niskiej emisji (kilka osiedli z paleniskami domowymi), natomiast w miesiącach letnich (6-7 µg·m⁻³) z centrum Olsztyna i najbliższej ulicy o znacznym ruchu samochodowym. Odmiennie kształtował się poziom NO w zależności od kierunku wiatru. W okresie zimowym nieutleniony jeszcze NO napływał z kierunku pobliskiej arterii komunikacyjnej oraz najbliższego osiedla domów jednorodzinnych. Z kolei latem prawie wyłącznie ze źródeł komunikacyjnych.
The main source of NOₓ (NO i NO₂) is human activity (power engineering, transport). Natural processes play a much less important role. Nitrig oxide is produced at high temperatures, mainly during fuel combustion. In the atmosphere it is oxidized with ozone or atmospheric oxygen to nitrogen dioxide, and next to nitrates. The experiment was conducted over a period from February 10 to December 31, 2005, using data provided by the Ambient Air Quality Monitoring Station in Kortowo. Continuous measurement of the concentrations of NO and NO₂ was performed with a chemiluminescent analyzer MLU 200E (API-Teledyne, Inc. USA; lower detectable limit 0.4 ppb). Meteorological parameters were determined using a system manufactured by LSI s.p.a. (Italy). In the winter months the highest NO₂ concentration (approximately 12 µg·m⁻³) was recorded when the wind was blowing from the direction of a low emission location (several housing estates with domestic furnaces), whereas in the summer months (6-7 µg·m⁻³) - when the wind was blowing from the city center and the nearest street characterized by a high traffic density. The relationship between the NO level and the wind direction differed. In winter non-oxidized NO came from the nearby traffic artery and an estate of detached houses, while in summer - almost entirely from traffic pollutant sources.
Źródło:
Zeszyty Problemowe Postępów Nauk Rolniczych; 2006, 513; 517-525
0084-5477
Pojawia się w:
Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Exhaust emission from vehicles under real road traffic conditions - a new chance for PTI
Autorzy:
Merkisz, J.
Gis, W.
Powiązania:
https://bibliotekanauki.pl/articles/244862.pdf
Data publikacji:
2008
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
exhaust emission
road transport
combustion engines
air pollution
environment protection
Opis:
The paper presents regulations and methods of testing emissions of exhaust toxic components from vehicles, particularly with respect to research methods under real road traffic conditions. In Europe, legal regulations determine emission values of the exhaust toxic components: carbon monoxide CO, unburned hydrocarbons HC and hydrocarbons released by evaporation (VOC - Volatile Organic Compound), nitrogen oxides NOx, and also PM emitted with the exhaust gasses. Emission of the harmful substances from the vehicles is tested on the chassis dynamometer, and the combustion engines them, on engine test bench. Due to a high cost of the test equipment and complexity of the tests, it is possible to use one measuring system, for both types of stands. Basic EU Directives and UN-ECE Regulations contain rules on conducting the aforementioned tests together with the regulations for the measuring equipment. In the beginning of 2005 in Europe the introduction of a new set of regulations began be introduced, concerning emissions from the M1 and N1 category vehicles. They are called Euro IV (currently obligatory) and Euro V (introduced in 2008). New regulations introduced not only more stringent requirements for the vehicles they refer to, but also for the research laboratories as far as the equipment level and research methods are concerned. Compliance with these requirements is being verified during type approval of vehicles, conformity of production (COP), and in-service conformity.
Źródło:
Journal of KONES; 2008, 15, 4; 321-330
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An application of artificial neural network to exhaust emission modelling from diesel engine
Autorzy:
Reszka, K.
Rakoczy, J.
Morgiel, J.
Powiązania:
https://bibliotekanauki.pl/articles/242238.pdf
Data publikacji:
2011
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
transport
road transport
simulation
combustion engines
air pollution
environmental protection
Opis:
Processes of the combustion of liquid fuels and solid are more complex than combustion of fuel gases. With reference to liquid fuels occur additionally processes of vaporization of the fuel, and with reference to solid fuels - decomposition of the solid phase with processes of melting and vaporization, pyrolysis, or gasification. This simultaneous and also different influence of different parameters is sometimes a reason of incorrect interpretation of experimental results. The study of the theoretical model of the combustion process concerning of liquid and solid fuels and which then the model takes into account also the gas- phase, because combustion processes take place in this phase, and occurs the interaction of the phase gas- and liquid or the solid one. The theoretical model is presented basing on experimental initial researches realized in a model with reference to liquid fuels and solid ones. Researches realized in the constant volume chamber with measurements of the pressure during the process of the combustion with the use of quick photography and with measurement of the distribution of the velocity in the spray of the fuel and droplet measurements by means the laser Doppler equipment LDV and PDPA. There were obtained a good agreement of findings experimental researches with the theoretical model. Generally on the combustion velocity of liquid fuels and solid one significant influence has a kind (laminar, temporary and turbulent) and the thickness of the thermal boundary layer.
Źródło:
Journal of KONES; 2011, 18, 2; 365-367
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of LPG gas fuel injectors on the properties of low emission vehicles
Autorzy:
Majerczyk, A.
Radzimirski, S.
Powiązania:
https://bibliotekanauki.pl/articles/241843.pdf
Data publikacji:
2012
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
road transport
liquid fuels
LPG
combustion engines
air pollution
environmental protection
Opis:
Modern spark-ignition engines used for the propulsion of low emission vehicles are fuelled by injection systems in which the fuel is individually metered to each cylinder by a single injector (multipoint injection). For the proper engine operation, it is necessary that the injectors are similar to each other and stable in respect of the fuel dosage during the whole engine operation. This requirement is satisfactorily met by petrol injectors used by OEM. In contrast to petrol injectors, gas injector used in LPG-fuelled vehicles, in particular for the retrofit, are still in the development phase and therefore their quality and production consistency are often regarded as unsatisfactory from the standpoint of view of the proper engine operation. The injector-to-injector variation in the fuel dosage results in air-fuel mixture maldistribution in the cylinders, which, in turn, affects vehicle emission characteristics. The paper presents results of an investigation of inconsistency of gas injectors used in LPG vehicles in respect of their dosage. The method of measurement of the dosage uniformity is described. On the basis of the measurement, three sets of injectors differing in respect of injector-to-injector variation were selected for further vehicle tests. Tests were conducted on a passenger Euro 4 car. The emissions of limited pollutants were measured over the NEDC type-approval cycle and cycle's representative for the real world driving under Polish driving conditions. The paper presents results of the conducted tests and discusses the effect of injector-to-injector variation on the pollutant emissions.
Źródło:
Journal of KONES; 2012, 19, 4; 401-410
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
In - cylinder OH and CO2* detection in SI engine through UV natural emission spectroscopy
Autorzy:
Merola, S. S.
Tornatore, C.
Marchitto, L.
Valentino, G.
Powiązania:
https://bibliotekanauki.pl/articles/242972.pdf
Data publikacji:
2012
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
road transport
simulation
combustion engines
air pollution
environmental protection
Opis:
Processes of the combustion of liquid fuels and solid are more complex than combustion of fuel gases. With reference to liquid fuels occur additionally processes of vaporization of the fuel, and with reference to solid fuels - decomposition of the solid phase with processes of melting and vaporization, pyrolysis, or gasification. This simultaneous and also different influence of different parameters is sometimes a reason of incorrect interpretation of experimental results. The study of the theoretical model of the combustion process concerning of liquid and solid fuels and which then the model takes into account also the gas- phase, because combustion processes take place in this phase, and occurs the interaction of the phase gas- and liquid or the solid one. The theoretical model is presented basing on experimental initial researches realized in a model with reference to liquid fuels and solid ones. Researches realized in the constant volume chamber with measurements of the pressure during the process of the combustion with the use of quick photography and with measurement of the distribution of the velocity in the spray of the fuel and droplet measurements by means the laser Doppler equipment LDV and PDPA. There were obtained a good agreement of findings experimental researches with the theoretical model. Generally, on the combustion velocity of liquid fuels and solid one significant influence has a kind (laminar, temporary and turbulent) and the thickness of the thermal boundary layer.
Źródło:
Journal of KONES; 2012, 19, 4; 429-437
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Lowering of exhaust emission in modern two - stroke engine
Autorzy:
Mitianiec, W.
Rodak, Ł.
Powiązania:
https://bibliotekanauki.pl/articles/246651.pdf
Data publikacji:
2012
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
transport
experiments
combustion engines
air pollution
Opis:
In the article the results of experimental tests carried out on the modified SI two-stroke experimental combustion engine with direct fuel injection system and the prototype of the oxidizing catalytic converter are presented. Volumetric exhaust emissions of the most important chemical components are many times smaller than standard limits of gaseous emissions given by EU directive for the new stationary engines applied in non-road vehicles and machines Spark ignition two-stroke engine fitted with a catalytic reactor is characterized by high temperature of exhaust gases, which the energy may be used in cogeneration systems. The paper presents the test stand, volumetric concentration of the main components of exhaust gases, results of converted emissions and fuel consumption as a function of air excess coefficient at chosen rotational speeds together with the assessment of the test results. There is decreasing of CO and HC emission during increasing of air excess coefficient and a strong increase of CO2 behind the catalytic converter. Application of catalytic converter in the outflow system together with direct fuel injection of the tested two-stroke engine enables to achieve values of exhaust emission of main toxic chemical components close to automobile four stroke engines. The paper presents also the comparison of exhaust gas emission of this engine with other engines equipped with different fuelling systems. Presented work is the successor of a wide range of research work in the field of development of modern two-stroke engines carried out in the Cracow University of Technology.
Źródło:
Journal of KONES; 2012, 19, 2; 337-344
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ograniczanie emisyjności pojazdów w transporcie drogowym. Pojazdy hybrydowe i elektryczne w Polsce – perspektywy i bariery rozwoju
Limiting emission from road transport. Hybrid and electric vehicles in Poland – perspectives and barriers for market development
Autorzy:
Krzak, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/16539512.pdf
Data publikacji:
2012
Wydawca:
Kancelaria Sejmu. Biuro Analiz Sejmowych
Tematy:
road transport
air pollution
emission standards
electric car
Opis:
In this paper the author addresses the issue of road transport in the context of its environmental impact. The article discusses the issue of air pollution from motor vehicle emissions and various methods of tackling this problem. The first section provides an overview of the most important data related to air pollution caused by road transport and the main EU regulations concerning vehicle emission standards. The second section of the article is devoted to barriers that hinder the growth of the hybrid and electric vehicle market. This analysis is carried out on the basis of the vehicle market conditions in Poland.
Źródło:
Studia BAS; 2012, 1(29); 161-184
2080-2404
2082-0658
Pojawia się w:
Studia BAS
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Approval tests and evaluation of emission properties of vehicle
Autorzy:
Majerczyk, A.
Powiązania:
https://bibliotekanauki.pl/articles/246994.pdf
Data publikacji:
2013
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
transport
road transport
combustion engines
air pollution
environmental protection
Opis:
Operation of vehicles equipped with combustion engines is a source of pollution. That is why the emissions from this source are restricted. The emissions reduction system consists of several steps, whose basic component is a typeapproval of vehicle in terms of emissions level and admission to the registration of vehicles that meets the requirements for emissions. It is assumed, that the gradual reduction of emissions limits will improve the emission properties of the vehicles, and gradual withdrawal of used vehicles, will reduce of emissions growth. The basis for issuing opinions on a vehicle's exhaust emissions is the measurement of emissions performed in the laboratory on a chassis dynamometer in reproducible conditions of preparing the vehicle for testing, test replication, fuel for the engine, and the procedure for collecting the exhaust gas analysis. Motor Transport Institute conducts the type approval tests, as well as the research on emissions from vehicles in the real traffic conditions, which are used to determine the actual emission from the vehicle population. Emission tests for applications, that go beyond the application of type approval show, that there are vehicles whose emissions in operation is substantially different from the emissions measured during type approval. It is a natural phenomenon in the case of used vehicles and vehicles with engine malfunctions or exhaust aftertreatment system defect. However, there are vehicles whose emissions under specific operating traffic conditions are significantly different from the values obtained in the course of type approval tests, despite the good properties of emission measured under the conditions provided by the type-approval procedure. The article discusses the results of the emissions from vehicles, obtained in the tests used to determine the emission factors for vehicles used in real traffic conditions, thus taking into account emissions from vehicles, made under different conditions than the type approval tests, which show that, in terms of driving cycles, which are not covered by the emission test procedure, can multiply and exceed the approved values.. This is particularly true for modern diesel engines.
Źródło:
Journal of KONES; 2013, 20, 4; 245-251
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identification and analysis of parameters for the areas of the highest harmful exhaust emissions in the model emitransys
Autorzy:
Ambroziak, T.
Gołębiowski, P.
Pyza, D.
Jacyna-Gołda, I.
Merkisz-Guranowska, A.
Powiązania:
https://bibliotekanauki.pl/articles/247522.pdf
Data publikacji:
2013
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
proecological transport system
transport
air pollution
emission of exhaust gases
EMITRANSYS
Opis:
A scheme has been developed to be utilized for solving the interaction between wing aerodynamic loads and the flexibility of wing structures under a quasi static assumption. The interaction is implemented through a link between the nodes of finite element model and the grids of transonic small disturbance model. The particular finite element responses, namely translational displacement vectors (TDV), are utilised for reconstructing the deflected wing surfaces. So in each iteration, the updated surfaces are involved as the parent for regenerating the TSD grids. The criteria of the Euclidean norm is applied for evaluating the convergency of aero-structure interaction. Catia-V5, is fully employed to manage three dimensional geometries for developing the model of wing structures, calculating grids and aerodynamic loads, as well as for reconstructing the updated wing surfaces. Numerous functions and objects of Catia are employed by conducting particular accesses via component object models using Microsoft Visual Basic.Net. A case study is excersized to demonstrate the interaction in transonic speed. The results shown that the scheme is very good in the way performing the interaction in quasi static condition. The utilization of TDV for generating the deflected wing surfaces indicates the capability of high fidelity deformations with respect to the complexity of finite element model
Źródło:
Journal of KONES; 2013, 20, 3; 9-20
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wykorzystanie biometanu jako paliwa w transporcie samochodowym efektywnym sposobem ograniczenia emisji zanieczyszczeń do powietrza
Implementation of biomethane as fuel in transportation effective way to reduce emission of pollutants to air
Autorzy:
Wodołażski, A.
Rejman-Burzyńska, A.
Jędrysik, E.
Powiązania:
https://bibliotekanauki.pl/articles/271402.pdf
Data publikacji:
2013
Wydawca:
Górnośląska Wyższa Szkoła Pedagogiczna im. Kardynała Augusta Hlonda
Tematy:
biometan
biopaliwo
transport samochodowy
emisja
powietrze
biomethane
biofuel
transportation
emission
air
Opis:
W artykule przedstawiono możliwości wykorzystania biometanu jako paliwa w transporcie samochodowym. Porównano emisje zanieczyszczeń ze spalania biometanu oraz powszechnie stosowanych paliw silnikowych. Zwrócono uwagę na korzyści środowiskowe związane z wprowadzeniem tego paliwa w transporcie: znaczne ograniczenie emisji zanieczyszczeń do powietrza, smogu oraz hałasu w aglomeracjach miejskich.
This paper presents the possibility to use biomethane as a fuel for transportation. The emissions of pollutants from combustion of biomethane and the commonly used fuels have been compared. It was indicated that implementation of this fuel for transport results in environmental benefits: significant reduction of pollutant emissions, smog and noise in the urban agglomerations.
Źródło:
Journal of Ecology and Health; 2013, R. 17, nr 4, 4; 169-175
2082-2634
Pojawia się w:
Journal of Ecology and Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation methods of the impact of motorization on the quality of the atmospheric air
Autorzy:
Skrętowicz, M.
Sitnik, L.
Każmierczak, A.
Magdziarz-Tokłowicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/242005.pdf
Data publikacji:
2014
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
vehicle
exhaust emission
ecology
road transport
combustion engines
air pollution
Opis:
The automotive industry is one of the fastest developing branches in the world. From year to year on the roads appear more and more cars. In the modern vehicles, better and more efficient technologies reducing exhaust emission are applied. However, the cars are still the leading source of air pollution, especially in towns and cities. Car exhaust gases have adverse effect on the human health, because they form so-called “low emission”. It means that they are released into the troposphere at the people living height. As a result, people are exposed to the direct and long-lasting contact with the fumes. Therefore, precise assessment is very important to the vehicles’ impact on the quality of the atmospheric air. The review of the evaluation methods of the impact of vehicles on the air quality was presented in the paper, with special regard to the mathematical dispersion modelling of the exhaust gases. In particular, NOx emission by sector in Poland, changing NOx emissions from road transport in Poland in the years 2000-2009 with regard to the change in the number of cars, vertical cross-section of a typical symmetric urban street canyon are presented in the paper.
Źródło:
Journal of KONES; 2014, 21, 4; 445-452
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Minimum emission unconventional MAGLEV assisted take-off
Autorzy:
Majka, A.
Powiązania:
https://bibliotekanauki.pl/articles/246124.pdf
Data publikacji:
2014
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
air transport
green trajectory
take-off
aircraft emission
magnetic levitation
Opis:
Among the most important problems faced by the air transport today there can be mentioned some negative influences of aircraft and airports on the environment and the increasing costs of air transport. One of the possibilities to improve the situation is to work out innovative solutions aimed at decreasing of the aircraft pollution and improving the transport effectiveness. Among the most innovative ideas is the use of magnetic levitation (MAGLEV) to aid the take-off and landing of the transport aircraft. The “Integrated Ground and on-Board system for Support of the Aircraft Safe Take-off and Landing” – GABRIEL, deals with radically new integration of the MAGLEV technology into the air transportation system that contains aircraft, airport, air traffic control, authority, logistic and operational support, maintenance, etc. GABRIEL idea includes operation of the aircraft without the conventional undercarriage system and using the ground based power and supporting systems for take-offs and landings. In case of using the GABRIEL system as a catapult, the aircraft on the track must be accelerated to the speed permitting to reach the altitude of 300 m or more. Such take-off and climb results in minimum noise and minimal emission of substances harmful for the environment. After reaching the altitude of 300 m, the aircraft may follow its flight with using different flight strategies. Different conditions of the unconventional take-off needs to shape other way the trajectory of the initial stage of the aircraft flight after the lift-off. The aim of the present work was to determine the optimal conditions of the lift-off and the optimal trajectory of the initial climb minimizing the emission. Simplified realization of the Ritz- Galerkin method was used in this work, which uses an approximate solution to boundary value problems for determining the optimal flight trajectory.
Źródło:
Journal of KONES; 2014, 21, 4; 335-342
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Technical and environmental limitations of pro-ecological transport system designing
Autorzy:
Jacyna, M.
Żak, J.
Pyza, D.
Gołębiowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/241921.pdf
Data publikacji:
2014
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
pro-ecological transport system
transport
air pollution
emission of exhaust fumes
EMITRANSYS
Opis:
Transport is one of the most environmentally destructive branches of economy. It contributes to environmental degradation and influences negatively on human live. It should therefore seek to reduce the negative impact on the environment. The paper presents many aspects of development of the national transport system. In article characterized technical constraints and environmental issues, which are applicable to the designing of pro-ecological transport system. Presented in it also indicators of the proposed design solution quality. In shaping the pro-ecological system the special role plays environmental restrictions, because they mainly determine the quality of solutions in terms of minimizing the negative impact of transport on the environment. Technical factors are equally important, because they allow, among others, reducing the external costs of congestions and allow on the creation of transport tasks on the appropriate level. In particularly, EU requirements for sustainable development of the transport system, the components of the external costs arising from the sphere of transport, indicators and ecological limitations in designing of pro-ecological transport system, ecological limitations, technical limitations, indicators for assessing pro-ecological transport system are presented in the paper.
Źródło:
Journal of KONES; 2014, 21, 4; 555-564
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The issue of the atmosphere protection against toxic compounds gas emissions in maritime transport
Autorzy:
Witkowski, K.
Powiązania:
https://bibliotekanauki.pl/articles/242376.pdf
Data publikacji:
2014
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
laboratory tests
supercharging air pressure
exhaust gas content
emission of nitric oxides
vessels propulsions
diesel engines
air humidification
Miller systems
Opis:
The paper discusses influence of the charging air parameters marine diesel engine on the emission toxic compounds in aspect of protecting the atmosphere against pollution from the sea vessels, pointed to the possibility of reducing NOx emissions by changing the parameters of charging air. In this group of activities undertaken to reduce nitric oxides emissions applied inter alia cooling the air and changes in pressure at the beginning of compression stroke. This is discussed in the background of normative acts, in particular the 73/78 MARPOL Convention (International Convention for the Prevention of Pollution from Ships) referring to prevention against marine environment pollution, and later amendments to the Convention with Annex VI (Regulation for the Prevention of Air Pollution from Ships) dealing with reducing the emission of nitric oxides and sulphur oxides into the atmosphere by sea vessels engines.It was also discussed the issue of air humidification as a method to reduce NOx by injecting hot water into a stream of pumped air. This is an overview on the example of two methods proposed for using in marine engines: CASS (Combustion Air Saturation System), HAM (Humid Air Motor system). The results of experimental tests of the influence of charging air pressure on content of exhaust gas, especially content nitric oxides (NOx), of ship diesel engine supplied with marine heavy fuel oil IF40 have been presented in this paper.
Źródło:
Journal of KONES; 2014, 21, 3; 293-300
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Emisja wybranych, toksycznych składników spalin przez różne środki transportu
Chosen toxic components of exhaust gasses emission for different means of transport
Autorzy:
Witaszek, M.
Witaszek, K.
Powiązania:
https://bibliotekanauki.pl/articles/196212.pdf
Data publikacji:
2015
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
emisja
tlenek azotu
węglowodory
tlenek węgla
cząstki stałe
transport
drogowy
transport kolejowy
transport lotniczy
emission
nitrogen oxide
hydrocarbons
carbon monoxide
particles
road transport
railway transport
air transport
Opis:
W niniejszym artykule zestawiono emisję: tlenków azotu, węglowodorów, tlenku węgla i cząstek stałych dla różnych środków transportu. W zestawieniu uwzględniono transport: drogowy, kolejowy i lotniczy. Do analizy użyto danych dostępnych w literaturze. Przedstawiono je oddzielnie dla każdego z ww. rodzajów transportu. W celu ułatwienia porównania środków pasażerskiego i towarowego transportu drogowego zestawiono dane dotyczące emisji przypadającej na jednostkę drogi. Ponadto, zaprezentowano dane dotyczące emisji na jednostkę pracy przewozowej, która umożliwia porównanie transportu drogowego z kolejowym i lotniczym. Porównanie to umożliwiło określenie różnic występujących pomiędzy poszczególnymi rodzajami transportu. W transporcie lotniczym zaobserwowano istotny wpływ odległości pokonywanej w trakcie lotu na emisję. W przypadku lotów w kierunku zbliżonym do równoleżnikowego istotne jest także, czy odbywa się on zgodnie z ruchem Ziemi czy przeciwnie do niego.
This article presents data that concerns emission of nitrogen oxides, hydrocarbons, carbon monoxide and particles by different transport means. The road, rail and air transport were taken into account. The data published in references were analysed. To compare freight and passenger road transport emission expressed in grams per kilometre was presented. The emission in mg per passenger-kilometre enabled comparison of cars trains and planes in terms of air pollutant discharge. The data comparison revealed significant differences between transport modes. For aviation significant influence of flight distance on emission was observed. For flights running evenly with a parallel of latitude also the direction – according or opposite to the Earth rotation is significant.
Źródło:
Zeszyty Naukowe. Transport / Politechnika Śląska; 2015, 87; 105-112
0209-3324
2450-1549
Pojawia się w:
Zeszyty Naukowe. Transport / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł

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