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Wyszukujesz frazę "Diesel particulate matter" wg kryterium: Temat


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Tytuł:
Future needs for ship emission abatement and technical measures
Przyszłe potrzeby ograniczania emisji ze statków i techniczne środki ich realizacji
Autorzy:
Antes, T.
Szudyga, M.
Śliwiński, Ł.
Jaworek, A.
Krupa, A.
Balachandran, W.
Di Natale, F.
Gregory, D.
Jackson, M.
Powiązania:
https://bibliotekanauki.pl/articles/374561.pdf
Data publikacji:
2013
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
diesel engine
exhaust gas
diesel particulate matter
electrostatic scrubber
emission control
silnik Diesla
gaz wylotowy
ograniczenie emisji
Opis:
The International Maritime Organization (IMO) has revised air pollution regulations in MARPOL Annex VI. In 2012 Emission Control Areas (ECA) will limit fuel sulphur content to 1% and from 2015 to 0.1%). NOx emissions based on ships engine speed are also reduced for new vessels (2012 & 2016). Facing this legislation, ship owners have the alternative either to operate ships with costly low-sulphur fuels, or to keep using HFO but together with a gas cleaning equipment at the ship stack in order to reduce the rejected amount of SO2 gas in the atmosphere. To achieve this requirement, research and development organizations came out with proposing a solution that uses a device for cleaning exhaust gas of marine diesel engines. The paper presents a short communication about the DEECON project, which aim is to create a novel on-board after-treatment unit more advanced than any currently available. Each sub-unit of the system will be optimized to remove a specific primary pollutant. In particular, the technology within the DEECON system is based on novel or improved abatement techniques for reducing SOx, NOx, Particulate Matter (PM), CO and Volatile Organic Compounds (VOC). Some of these technologies are completely new for the maritime sector and they will represent a breakthrough in the reduction of the atmospheric emissions of ships, moving forward the performance of exhaust gas cleaning systems and fostering and anticipating the adoption of future and tighter regulatory requirements. In addition, an after-treatment strategy enables the possible adoption of alternative fuels, which often have their own emissions characteristics.
Na właścicieli statków i przewoźników morskich spadł obowiązek redukcji zanieczyszczeń pochodzących z ich działalności. Aby spełnić rygorystyczne wytyczne: dyrektyw Wspólnoty europejskiej, międzynarodowej organizacji morskiej (aneks VI, konwencji) MARPOL oraz praw wewnętrznych innych państw należałoby, w obszarach kontroli emisji, używać jako paliwa oleju napędowego o zmniejszonej zawartości siarki. Obszar kontroli emisji jest to obszar obejmujący Morze Bałtyckie, Morze Północne wraz z jego podejściami pod Kanał La-Manche oraz obszar wokół USA. Ze względu na wysokie ceny paliwa niskosiarkowego, duże koszty ewentualnych zmian technicznych przejścia na paliwo o niższej zawartości siarki spowoduje kilkakrotne zwiększenie opłat i zmniejszy atrakcyjność transportu morskiego. Naprzeciw tym wymaganiom wyszły jednostki badawczo rozwojowe, proponując rozwiązania polegające na zastosowaniu nowych, bardziej skutecznych urządzeń do końcowego oczyszczania spalin z okrętowych silników diesla. Artykuł jest komunikatem projektu o akronimie DEECON, którego głównym celem jest opracowanie innowacyjnego pokładowego urządzenia do oczyszczania spalin z okrętowych silników diesla składającego się z różnych modułów. Urządzenie to będzie optymalizowane w celu usunięcia najważniejszych zanieczyszczeń tj. SOx, NOx, PM, Lotnych Związków Organicznych (VOC) oraz tlenku węgla (CO). Niektóre z tych technologii są całkowicie nowe w przemyśle morskim i stanowią przełom w redukcji emisji zanieczyszczeń do atmosfery. Ponadto, takie rozwiązanie jest uniwersalne, umożliwia zastosowanie alternatywnych paliw do zasilania silników okrętowych, które często mają własne cechy emisji.
Źródło:
Transport Problems; 2013, 8, 3; 101-107
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A field study on the possible attachment of DPM and respirable dust in mining environments
Autorzy:
Gaillard, Sallie
Sarver, Emily
Cauda, Emanuele
Powiązania:
https://bibliotekanauki.pl/articles/92194.pdf
Data publikacji:
2019
Wydawca:
Główny Instytut Górnictwa
Tematy:
diesel particulate matter
dust
transmission electron microscope
NIOSH method 5040
submicron particles
cząstki stałe w silnikach wysokoprężnych
kurz
elektronowy mikroskop transmisyjny
metoda NIOSH 5040
cząstki submikronowe
Opis:
Typcial monitoring procedures for diesel particulate matter (DPM) in mines include the collection of filter samples using particle size selectors. The size selectors are meant to separate the DPM, which is generally considered to occur in the submicron range (i.e.,<0.8 μm), from larger dust particles that could present analytical interferences. However, previous studies have demonstrated that this approach can sometimes result in undersampling, therefore, excluding significant fractions of the DPM mass. The excluded fraction may represent oversized DPM particles, but another possibility is that submicron DPM attaches to supramicron dust particles such that it is effectively oversized. To gain insights into this possibility, a field study was conducted in an underground stone mine. Submicron, respirable, and total airborne particulate filter samples were collected in three locations to determine elemental carbon (EC) and total carbon (TC), which are commonly used as analytical surrogates for DPM. Concurrent with the collection of the filter samples, a low-flow sampler with an electrostatic precipitator was also used to collect airborne particulates onto 400-mesh copper grids for analysis by transmission electron microscope (TEM). Results indicated that, while typical submicron sampling did account for the majority of DPM mass in the study mine, DPM-dust attachment can indeed occur. The effect of exposure to such attached particulates has not been widely investigated.
Źródło:
Journal of Sustainable Mining; 2019, 18, 2; 100-108
2300-1364
2300-3960
Pojawia się w:
Journal of Sustainable Mining
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Lube oil consumptions impact on environment
Autorzy:
Krzymień, P.
Powiązania:
https://bibliotekanauki.pl/articles/246960.pdf
Data publikacji:
2010
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
lubricating oil consumption
particulate matter
diesel particulate filter
Opis:
The problem of lube oil consumption has been the point of interest of scientists for years,first because of economy and later - because of stringent standards of environment protection. From the point of economy lube oil consumption is not a problem of modern engines. On the other hand even a brief look proves that there is a quite wide range of admissible consumption from negligible values up to even l litr per 100 km. The question is why this range is so wide. Possible answer is that engine manufacturers leave so wide margin taking into consideration situations of very short trips, mainly in towns, when engine runs not fully warmed up with greater clearances, especially within the piston-cylinder assembly. Any oil consumption results in emission of particulate matter, which conveys a weighty number of hydrocarbons of which the most manifest serious hazardous properties, mainly carcinogenic ones. Nowadays, standards of environment protection require for instance the use of diesel particle filters and the excessive oil consumption could lead to the premature damage of these devices. Correct operation of the DPF could be disturbed not only by the excessive oil consumption but also by the use of improper oil, i.e. the non-low ash one. Certain additives that improve oil properties could produce ash as a result of oil combustion, which could clog filter irreversibly.
Źródło:
Journal of KONES; 2010, 17, 2; 265-270
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Particulate matter emission reduction from marine diesel engines by electrohydrodynamic methods
Autorzy:
Sobczyk, Arkadiusz T.
Jaworek, Anatol
Marchewicz, Artur
Krupa, Andrzej
Czech, Tadeusz
Śliwiński, Łukasz
Charchalis, Adam
Powiązania:
https://bibliotekanauki.pl/articles/241550.pdf
Data publikacji:
2019
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
exhaust gases
marine diesel engines
particulate matter
PM
scrubber
Opis:
Particulate matter (PM) and gaseous compounds (SO2, NOx, VOC) emitted by diesel engines causes serious global environmental problems and health impact. Despite numerous evidences about the harmfulness of diesel particles, the PM emission by diesel engines used by ships, cars, agricultural machines, or power generators is still unregulated, and the efficient removal of PM from diesel exhausts is still the major technological challenge. In order to comply with the International Maritime Organization regulation, the NOx emission is reduced by using selected catalytic reactor, and sulphur oxide emission has been reduced by using fuels of low sulphur content. However, both of those measures cannot be used for the reduction of PM emission produced during combustion of marine fuels. The lack of appropriate regulations results from insufficiently developed technology, which could remove those particles from exhaust gases. Conventional scrubbers currently available on the market remove only sulphur oxide with required collection efficiency, but the collection efficiency for PM2.5 is below 50%. The article discusses the technical means used for the removal of PM from marine diesel engines via applying electrohydrodynamic methods, in particular electrostatic agglomeration, as a method of nanoparticles coagulation to larger agglomerates, which could operate in two-stage electrostatic precipitation systems, and electrostatic scrubbers, which remove particles by electrically charged water droplets. The experimental results were obtained for a 2-stroke 73 kW diesel engine fuelled with marine gas oil (MGO). The agglomerator allowed increasing the collection efficiency from diesel exhausts for PM2.5 particles by about 12%, compared to electrostatic precipitator operating without agglomerator, and the total mass collection efficiency was above 74%. The collection efficiency of electrostatic scrubber was higher than 95wt.%. The advantage of using the electrostatic scrubber is that it can also reduce the SO2 emission by more than 90%, when HFO is used.
Źródło:
Journal of KONES; 2019, 26, 3; 203-210
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Particulate matter emission from dual fuel diesel engine fuelled with natural gas
Autorzy:
Stelmasiak, Z.
Larisch, J.
Pielecha, J.
Pietras, D.
Powiązania:
https://bibliotekanauki.pl/articles/260157.pdf
Data publikacji:
2017
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
dual fuel engine
natural gas
particulate matter
emission
opacity
Diesel engine
Opis:
The paper presents the results of examination of particulate matter emission from the Diesel engine FPT 1.3 MJT simultaneously fuelled with diesel oil and natural gas CNG. The basic premise for engine adaptation was the addition of a small amount of CNG to reduce exhaust gas opacity and particulate matter emission. At this assumption, diesel oil remained the basic fuel, with contribution amounting to 0,70-0,85 of total energy delivered to the engine. The dual fuel engine was examined using an original controller installed in the Diesel engine FPT 1.3 MJT which controlled the diesel fuel dose. The dose of the injected natural gas was controlled by changing the opening time of gas injectors at constant pressure in the gas collector. The examined issues included the exhaust gas opacity, and the total number and fractional distribution of the emitted particles. The measurements were performed at twenty selected measuring points corresponding to the New European Driving Cycle (NEDC) test. The performed tests have demonstrated a positive effect of gas addition on exhaust gas opacity and particulate matter emission. Depending on test conditions, the exhaust gas opacity was reduced by 10÷92%, and the total number of particles by 30÷40%. The performed tests have revealed that a small addition of gas can reduce the load of the DPF filter, extend its lifetime, and increase engine reliability. Longer time intervals between successive DPF filter regenerations improve ecological properties of the engine.
Źródło:
Polish Maritime Research; 2017, 2; 96-104
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Marine engine exhaust gas emission aftertreatment system concept
Autorzy:
Myśków, J.
Borkowski, T.
Bludszuweit, M.
Frohlingsdorf, W.
Powiązania:
https://bibliotekanauki.pl/articles/247178.pdf
Data publikacji:
2011
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
marine diesel engine
exhaust emission
particulate matter
non-thermal plasma reactor
Opis:
In 2008 the International Maritime Organization - IMO decided to strengthen the requirements for new ships from 2011 - Tier II. However, for Emission Control Areas (ECAs), such as the Baltic Sea, stringent rules will apply from 1 January 2016 for new ships - Tier III. The new standards introduce restrictions on exhaust emissions from diesel engines - NOx and SOx. The paper presents proposal of new design an existing exhaust gas system of experimental marine diesel engine, which is situated in the Laboratory of Maritime Academy in Szczecin. The conception is due to meet to new environmental regulations. Arrangements of exhaust line, CFD model of the SCR reference plant, CFD model - inlet and outlet boundary conditions, pressure loss model for the catalytic elements, simulation results - streamlines, velocity distribution, reaction progress distribution ate presented in the paper as well design description of system of laboratory- 4-stroke and turbocharged engine. . The means of the reduction systems are based on conventional marine exhaust gas installation that includes noise silencer and soot-catcher. The after-treatment methods do not introduce significant changes in engine arrangement and operation. A new gas purifying system should be installed in the engine exhaust gas system.
Źródło:
Journal of KONES; 2011, 18, 4; 307-315
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Direct application of non-thermal plasma to PM reduction from marine diesel engines
Autorzy:
Myśków, J.
Borkowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/242305.pdf
Data publikacji:
2009
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
marine diesel engine
exhaust emission
particulate matter
non-thermal plasma reactor
Opis:
This paper describes the experimental method - using non-thermal plasma reactor to cleaning exhaust gases - focused on PM compound. The demonstrator NTP reactor assembly was built as the by-pass in the real exhaust gas after-treatment system, in marine diesel engine. The reactor used to experiment is called - DBD (dielectric barrier discharge) type, The main aim of investigation was to analyze exhaust gas PM compounds under steady load of the engine. Test bench construction enables direct exhaust stream (main exhaust duet by-pass) to plasma reactor exposure with no additional components (coolers, orifices) that can change the exhaust gas properties. A new monitoring PM analyzing system, which can measure soot and SOF in low mass level, has been engaged. It consist of a diffusion charging (DC) detector with a dilution device for soot measurement, and two differential flame ionization detection (FID) method, which uses two FID detectors with separate sample lines. Exhaust emission reduction strategy for ships, Particulate Matters - PM in exhaust gas, non-thermal plasma reactor, experimental test bed and procedure, an example of reactor power measurement, test results provided into seven stages are presented in the paper.
Źródło:
Journal of KONES; 2009, 16, 2; 361-367
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Particulate matter emission from diesel engine fuelled with blends of diesel oil and ethyl tert-butyl ether
Emisja cząstek stałych z silnika o zapłonie samoczynnym zasilanego mieszaninami oleju napędowego z eterem etylo-tert-butylowym
Autorzy:
Górski, K.
Lotko, W.
Swat, M.
Powiązania:
https://bibliotekanauki.pl/articles/263295.pdf
Data publikacji:
2010
Wydawca:
Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Tematy:
emisja cząsteczek stałych
ETBE
olej napędowy
silnik o zapłonie samoczynnym
diesel engine
diesel oil
particulate matter emission
Opis:
The article presents the results of research on particulate matter (PM) emission from ADCR diesel engine fuelled with blends of diesel oil and ethyl tert-butyl ether (ETBE). Measurements were done in conditions of 13-phase, stationary ECE R49 test. Results show, that PM emission was reduced with the use of all tested ETBE/diesel blends with respect to those of the neat diesel fuel. In case of tested engine fuelled with mixture ETBE20 its PM emission was decreased by a half when compared to diesel oil.
Artykuł przedstawia wyniki badań w zakresie oceny emisji cząstek stałych z silnika ADCR zasilanego mieszaninami oleju napędowego z eterem etylo-tert-butylowym (EETB). Pomiary wykonano w warunkach 13-fazowego testu stacjonarnego ECE R49. Wyniki wskazują, że emisja cząstek stałych była obniżona dla wszystkich badanych mieszanin w porównaniu do tej, którą uzyskano dla oleju napędowego. W przypadku badanego silnika zasilanego mieszaniną ETBE20 jego emisja cząstek stałych była obniżona o połowę w stosunku do zasilania olejem napędowym.
Źródło:
Archiwum Motoryzacji; 2010, 2; 119-126
1234-754X
2084-476X
Pojawia się w:
Archiwum Motoryzacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The properties of a HDV diesel engine fuelled by crude rapeseed oil
Wlasciwosci silnika diesla zasilanego naturalnym olejem rzepakowym
Autorzy:
Cisek, J.
Mruk, A.
Hlavna, V.
Powiązania:
https://bibliotekanauki.pl/articles/793466.pdf
Data publikacji:
2011
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
crude rapeseed oil
rapeseed oil
energy parameter
exhaust gas
particulate matter
diesel engine
engine operation
breakdown
combustion engine
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2011, 11
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Feature comparison regeneration particulate filter with the catalytic coating and the use of oxidation catalyst
Sravnenie vozmozhnostejj regeneracija sezhevogo fil'tra s kataliticheskim pokrytiem i primenieniem okislitel'nogo nejjtrolizatora
Autorzy:
Shekhovtsov, Y.
Zaigrayev, L.
Powiązania:
https://bibliotekanauki.pl/articles/793068.pdf
Data publikacji:
2013
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
diesel particle filter
regeneration
catalytic oxidation
soot
harmful emission
exhaust gas
nitrogen oxide
particulate matter
carbon monoxide
hydrocarbon
sulphur compound
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2013, 13, 4
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-10 z 10

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