Temat: engine exhaust - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The effect of fuel dose division on the emission of toxic components in the car Diesel engine exhaust gas
Autorzy:: Pietras, D.
Powiązania:: https://bibliotekanauki.pl/articles/259658.pdf
Data publikacji:: 2016
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: exhaust opacity
exhaust emissions
diesel engine
common rail
fuel dose division
Opis:: The article discusses the effect of fuel dose division in the Diesel engine on smoke opacity and composition of the emitted exhaust gas. The research activities reported in the article include experimental examination of a small Diesel engine with Common Rail type supply system. The tests were performed on the engine test bed equipped with an automatic data acquisition system which recorded all basic operating and control parameters of the engine, and smoke opacity and composition of the exhaust gas. The parameters measured during the engine tests also included the indicated pressure and the acoustic pressure. The tests were performed following the pre-established procedure in which 9 engine operation points were defined for three rotational speeds: 1500, 2500 and 3500 rpm, and three load levels: 25, 40 and 75 Nm. At each point, the measurements were performed for 7 different forms of fuel dose injection, which were: the undivided dose, the dose divided into two or three parts, and three different injection advance angles for the undivided dose and that divided into two parts. The discussion of the obtained results includes graphical presentation of contests of hydrocarbons, carbon oxide, and nitrogen oxides in the exhaust gas, and its smoke opacity. The presented analyses referred to two selected cases, out of nine examined engine operation points. In these cases the fuel dose was divided into three parts and injected at the factory set control parameters. The examination has revealed a significant effect of fuel dose division on the engine efficiency, and on the smoke opacity and composition of the exhaust gas, in particular the content of nitrogen oxides. Within the range of low loads and rotational speeds, dividing the fuel dose into three parts clearly improves the overall engine efficiency and significantly decreases the concentration of nitrogen oxides in the exhaust gas. Moreover, it slightly decreases the contents of hydrocarbons and carbon oxide. In the experiment the contents of nitrogen oxides markedly increased with the increasing injection advance angle for the undivided dose and that divided into two parts. This, in turn, led to the decrease of the contents of hydrocarbons and carbon oxide. Fuel dose division into two and three parts leads to the increase of smoke opacity of the exhaust gas, compared to the undivided dose.
Źródło:: Polish Maritime Research; 2016, 3; 58-63
1233-2585
Pojawia się w:: Polish Maritime Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Aircraft fuel consumption and emissions during cruise, effect of the jet stream
Autorzy:: Głowacki, P.
Kawalec, M.
Powiązania:: https://bibliotekanauki.pl/articles/242826.pdf
Data publikacji:: 2015
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: turbine engine
cruise
jet stream
exhaust emissions
Opis:: Article presents the results of fuel consumption calculation during cruise compared to remaining aircraft flight phases. Based on fuel consumption, methodology of pollutants quantitative estimation emitted by turbine engines has been developed. Material provides evaluation results of aircraft CO2, CO and NOx effusion using fuel consumption data taken from aircraft Flight Data Recorder (FDR) during cruise of various aircraft types. Knowledge of the amount of aircraft emissions on high altitudes is very important for climatologists in order to understand eventual changes in the Earth atmosphere due to aviation activities. The authors would like to draw attention of the aviation professionals to the fact that aircraft fuel consumption during cruise; thereby amount of toxic content in the exhaust from the turbine engine is significantly higher especially during flights against jet stream. Thousands flights of two operators were processed using algorithms developed by authors. The article gives an example of fuel consumption and thereby CO2, CO and NOx emission estimation based on engine performance taken from their test cell results. Calculations were performed with the consideration of the factor for engines deterioration through operation time provided by its manufacturer.
Źródło:: Journal of KONES; 2015, 22, 2; 63-70
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: The possibilities and development of in-cylinder catalytic coating
Autorzy:: Andrych-Zalewska, M.
Powiązania:: https://bibliotekanauki.pl/articles/243435.pdf
Data publikacji:: 2017
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: combustion engine
in-cylinder catalyst
exhaust emissions
Opis:: Due to the legal changes in the exhaust emission limits in the European Union meeting the new norms becomes more challenging for car manufacturers. The recent progress in the exhaust aftertreatment technology and commercially available aftertreatment systems. However, as the exhaust, systems become more and more complex the problem of high emissions in many engine-operating points that are not currently a part of the type approval tests remains. The article aims to address the limitations of the oxidation catalysts in current aftertreatment systems, mainly their light-off temperature, by investigating new options for in-cylinder catalysts. Placing the catalytic layer within the combustion chamber avoids a number of problems associated with these catalysts being a part of the aftertreatment system. Engine emission tests have been performed comparing the effects of using an in-cylinder Pt-Rh catalytic layer in relation to hydrocarbon and nitrogen oxides emissions. The viable methods of producing a catalytic layer on engine components along with the choice of components to use for catalytic surfaces have also been discussed.
Źródło:: Journal of KONES; 2017, 24, 3; 7-14
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Ocena ekologiczności pracy silnika o ZS turbodoładowanego zasilanego porównawczo ON, biopaliwem B50 i B100
Ecological evaluation of a turbocharged diesel engine fueled with diesel oil, biofuel B50 and B100
Autorzy:: Jakóbiec, J.
Mazanek, A.
Cieślikowski, B.
Powiązania:: https://bibliotekanauki.pl/articles/314536.pdf
Data publikacji:: 2012
Wydawca:: Instytut Naukowo-Wydawniczy "SPATIUM"
Tematy:: silnik
paliwo
emisja spalin
engine
fuel
exhaust emissions
Opis:: W artykule zamieszczono informacje dotyczące właściwości fizykochemicznych przedmiotowych paliw tj, oleju napędowego Ekodiesel Ultra D, biopaliwa B50 i B100, parametrów technicznych obiektu badawczego (silnik o ZS turbodoładowany spełniający wymogi EURO 4) oraz wyniki testu ESC pomiarów emisji toksycznych składników spalin podczas badań hamownianych i stanowiskowych.
This paper contains an information concerning physicochemical properties of studied fuels: Ekodiesel Ultra D diesel oil, biofuel B50 and B100. Technical parameters of examined object (turbocharged diesel engine fulfilling the requirements of EURO 4) and ESC test results for exhaust emissions of toxic compounds during engine test bench, are also included.
Źródło:: Autobusy : technika, eksploatacja, systemy transportowe; 2012, 13, 10; 67-72
1509-5878
2450-7725
Pojawia się w:: Autobusy : technika, eksploatacja, systemy transportowe
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Comperative analysis of emision from engine fuelled with diesel and bio-diesel
Autorzy:: Koszałka, G.
Hunicz, J.
Kordos, P.
Powiązania:: https://bibliotekanauki.pl/articles/242081.pdf
Data publikacji:: 2009
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: diesel engine
alternative fuel
bio-diesel
exhaust emissions
Opis:: The paper presents comparative analysis of operational parameters, smoke emission and toxic components contents in exhaust gases of a compression ignition engine fuelled with fossil diesel, commercial bio-diesel (fatty acid methyl ester) and their blend. Measurements were conducted on an older generation diesel engine equipped with in-line injection pump. Engine was operated in conditions of full load rotational speed characteristic and also ESC steady-state test cycle. Fourier Transform Infrared (FTIR) analytical system provided contents of 23 exhaust gas components. In particular chosen parameters of investigated fuels (on the base of quality reports), performance and fuel consumption characteristic versus rotational speed, smoke emission (D) and content of carbon monoxide (CO), unburned hydrocarbons (THC) and nitrogen oxides (NOx), sulphur dioxide (S02) and carbon dioxide (CO2) in exhaust gas of the engine fuelled with investigated fuels, emission of specific hydrocarbons of the engine fuelled with investigated fuels, of non-regulated compounds measured during the research, molar mass of analyzed exhaust compounds are presented in the paper.
Źródło:: Journal of KONES; 2009, 16, 3; 165-171
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Evaluation of relations operating and ecological parameters of turbine engines
Autorzy:: Markowski, J.
Pielecha, J.
Jasiński, R.
Wirkowski, P.
Ślusarz, G.
Powiązania:: https://bibliotekanauki.pl/articles/2073658.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: exhaust emissions
engine turbine
ecological parameters
operating parameters
Opis:: The article concerns the evaluation of exhaust emissions from turbine engines. The results of the work are associated with development of analytical methods useful in estimating the emissions of harmful exhaust gases during turbine engine operating conditions. The results of studies and the interdependence between emission indicators and operating parameters were pointed out. The analysis of these interdependence shows a strong similarity in the nature of changes of particular relationship in relation to the engines tested, but also shows their individuality. The article shows the direction of further work to develop methods of assessment the emissions from turbine engines during their operation. The methods developed for the analysis of ecological parameters during operation of turbine engines may be useful to implement in models of assessing pollutant emissions from maritime transport and to analyze and evaluate the impact of transport on the environment. This assessment may be important to consider, with regards to meeting the newly introduced emission standards, in accordance with the MARPOL directive, which has been in force since January of 2015.
Źródło:: Journal of Polish CIMEEAC; 2015, 10, 1; 101--115
1231-3998
Pojawia się w:: Journal of Polish CIMEEAC
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Exhaust emissions of dual fuel spark ignition engine fuelled gasoline and methanol
Autorzy:: Stelmasiak, Z.
Semikow, J.
Powiązania:: https://bibliotekanauki.pl/articles/247184.pdf
Data publikacji:: 2013
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: methanol
gasoline
spark ignition engine
dual fuel
exhaust emissions
Opis:: Today, more and more attention is paid to search for alternative fuels, which would be not only environmentally friendly, but also cost-competitive to petroleum fuels. In the recent years much attention is paid to investigations at adaptation of combustion engine to run on bio-fuels. Results of the investigations show, that methyl and ethyl alcohols could belong to one from the most promising and future bio-fuels, being a serious alternative to petroleum fuels. Interest in these fuels comprises such areas as exploration of raw materials to production of the alcohols, development of technology of their production, especially 2nd generation of ethyl alcohol, special fuelling and control systems, design changes of the engines fuelled with alcohols. In the present paper are shown test results of Fiat 1.3 Multipoint engine fuelled in dual fuel system with methanol and gasoline. In this engine one assembled prototype fuel supply system with duplex injectors on each cylinder, to injection of methanol and gasoline. Implemented system enables fuelling with gasoline only, with methanol only, or simultaneously with gasoline and methanol with any fraction of the methanol. Change of fuelling system and change of methanol fraction can be accomplished in course of engine operation. Performed investigations showed advantageous effect of the methanol on toxicity of exhaust gases. One confirmed reduction of emissions of hydrocarbons, nitrogen oxide and carbon dioxide. The biggest changes in the concentration occurred in case of fuelling with the methanol only, and amounted to: 2-3 times reduction of the THC, reduction of NOx with 40-60%. Differences in concentration of NOx increased together with growth of engine load, and hence, they concern such areas of engine operation, where the biggest quantities of the NOx are emitted. In case of dual fuel feeding, effect of reduction of concentration of the components discussed here decreases according to reduced fraction of the methanol. Changes in the emissions discussed here are obtained with maintained engine performance and growth of overall efficiency of the engine. Implemented system eliminates problems of stratification of methanol-gasoline mixture in low temperatures and in presence of water. The system can be adapted to any liquid fuels.
Źródło:: Journal of KONES; 2013, 20, 2; 363-370
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Real driving emissions : vehicle tests in variable terrain
Autorzy:: Merkisz, J.
Pielecha, J.
Powiązania:: https://bibliotekanauki.pl/articles/245283.pdf
Data publikacji:: 2015
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: combustion engine
exhaust emissions
vehicle testing
Real Driving Emissions
Opis:: This paper presents the results of tests conducted in real traffic conditions in a mountainous area, taking into account the natural topography characteristics. The tested vehicle was of SUV type (Sport Utility Vehicle) with gasoline and Diesel engine, complying with emission standard Euro 5. Using the portable system for measurement of harmful substances, measurements of pollution emissions were conducted. The results obtained confirmed the substantial changes in the emission of harmful components of exhaust fumes with the change of the road grade. In all considered cases, it was confirmed that with the increasing route grade, the road emissions of all harmful components of exhaust fumes increase, however this increase varies for different pollutants. The most sensitive for spark ignition engines is emission of particulate matter, which is associated mainly with the compression ignition engines. For small changes of the road grade, the most sensitive seems to be road emission of carbon monoxide, for gasoline engines emission of particulate matter is specific, first, to all diesel engines, increase of the road grade to 10% caused on average twofold increase in the emission of harmful components of exhaust gases.
Źródło:: Journal of KONES; 2015, 22, 1; 217-225
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Effect of elevated coolant temperature on the exhaust composition of piston internal - combustion engine
Autorzy:: Krakowski, R.
Powiązania:: https://bibliotekanauki.pl/articles/246871.pdf
Data publikacji:: 2012
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: combustion engines
engine cooling
exhaust emissions
air pollution
environmental protection
Opis:: There is a tendency to increase the economic efficiency of engine operation and energy efficiency and reduce emissions of toxic combustion products. One way to reduce emissions of toxic components in exhaust gases is raising the coolant boiling point, which requires the simultaneous increase in pressure in the cooling system. Previous studies suggest that such a system can reduce the amount of toxic components in exhaust gases, particularly at low engine load when the engine exhaust temperature is too low to make effective catalytic action. The paper presents the model and experimental test stands to research the cooling system at an elevated temperature of the coolant. The speed and load characteristics of the standard cooling systems and pressure were presented. The research results were designed to determine the effect of elevated temperature in the cooling system on the composition of the gases. The characteristics of the external speed and load were performed with standard cooling systems and pressure. When performing velocity characteristics of the engine was loaded up in the whole range of engine speed from 1000 to 4000 rev/min, while the load characteristics were performed for different values of torque at constant speed in the range from 1500-4000 rpm. The results confirmed the benefits of increasing the temperature of the coolant. The presented characteristics that apply pressure cooling system reduces the amount of toxic components in exhaust gases, particularly at low engine load, in which the engine operates most often in urban conditions.
Źródło:: Journal of KONES; 2012, 19, 2; 263-270
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Effects of Specific Fuel Consumption and Exhaust Emissions of Four Stroke Diesel Engine with CuO/Water Nanofluid as Coolant
Autorzy:: Senthilraja, S.
Vijayakumar, K. C. K.
Gangadevi, R.
Powiązania:: https://bibliotekanauki.pl/articles/140023.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: nanofluid
engine performance
exhaust emissions
nanopłyn
wydajność silnika
emisja spalin
Opis:: This article reports the effects of CuO/water based coolant on specific fuel consumption and exhaust emissions of four stroke single cylinder diesel engine. The CuO nanoparticles of 27 nm were used to prepare the nanofluid-based engine coolant. Three different volume concentrations (i.e 0.05%, 0.1%, and 0.2%) of CuO/water nanofluids were prepared by using two-step method. The purpose of this study is to investigate the exhaust emissions (NO_x), exhaust gas temperature and specific fuel consumption under different load conditions with CuO/water nanofluid. After a series of experiments, it was observed that the CuO/water nanofluids, even at low volume concentrations, have a significant influence on exhaust emissions. The experimental results revealed that, at full load condition, the specific fuel consumption was reduced by 8.6%, 15.1% and 21.1% for the addition of 0.05%, 0.1% and 0.2% CuO nanoparticles with water, respectively. Also, the emission tests were concluded that 881 ppm, 853 ppm and 833 ppm of NO_x emissions were observed at high load with 0.05%, 0.1% and 0.2% volume concentrations of CuO/water nanofluids, respectively.
Źródło:: Archive of Mechanical Engineering; 2017, LXIV, 1; 111-121
0004-0738
Pojawia się w:: Archive of Mechanical Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: The effect of aviation fuel JP-8 and diesel fuel blends on engine performance and exhaust emissions
Autorzy:: Labeckas, G.
Slavinskas, S.
Vilutienė, V.
Powiązania:: https://bibliotekanauki.pl/articles/949492.pdf
Data publikacji:: 2015
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: diesel engine
jet fuel
diesel fuel
autoignition
combustion
performance
exhaust emissions
Opis:: The article presents bench test results of a four-stroke, four-cylinder, naturally aspirated, DI diesel engine operating with neat JP-8 fuel (J) and its blends with Diesel fuel (D) in following proportions by volume: 90/10 (J+10D), 70/30 (J+D30), 50/ 50 (J+D50), 30/70 (J+D70), and 100% diesel fuel (DF). The purpose of the research was to analyse and compare changes occurred in the autoignition delay, combustion events, engine performance efficiency, emissions, and smoke of the exhaust when running on JP-8 fuel, jet-diesel fuel blends, and diesel fuel at a full (100%) engine load and speed of 1400 min–1 at which maximum torque occurs and rated speed of 2200 min–1. It was found that the start of injection (SOI) and the start of combustion (SOC) occurred earlier in an engine cycle and the autoignition delay decreased by 9.0% and 12.7% due to replacement of aviation JP-8 fuel with diesel fuel at a full load and the latter speeds. Maximum in-cylinder pressure was 6.8% and 4.0% higher when operating with diesel fuel, whereas brake thermal efficiency was 3.3% and 7.7% higher, and brake specific fuel consumption 2.8% and 7.0% lower when using fuel blend J+D50 compared with the respective values measured with neat JP-8 fuel. Emissions of nitric oxide (NO) and nitrogen oxides (NOx) were 13.3% and 13.1% higher from a straight diesel running at speed of 1400 min–1, and 19.0% and 19.5% higher at a higher speed of 2200 min–1. The carbon monoxide (CO) emissions and total unburned hydrocarbons (HC) decreased 2.1 times and by 12.3% when running with fuel blend J+D70 at speed of 2200 min–1 compared with those values measured with jet fuel. Smoke of the exhaust was 53.1% and 1.9% higher when using fuel blend J+D10 than that of 46.9% and 70.0% measured with jet fuel at speeds of 1400 and 2200 min–1. The engine produced 34.5% more smoke from combustion of fuel blend J+D70 at the low speed of 1400 min–1, but smoke converted to be 11.3% lower when operating at a higher speed of 2200 min–1.
Źródło:: Journal of KONES; 2015, 22, 2; 129-138
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Wpływ prędkości obrotowej silnika ZS na emisję związków toksycznych w spalinach
The effect of CI engine speed on the emission of toxic compounds in the exhaust gases
Autorzy:: Andrzejewski, M.
Merkisz, J.
Nowak, M.
Powiązania:: https://bibliotekanauki.pl/articles/133357.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:: silnik ZS
prędkość obrotowa
badania drogowe
emisja zanieczyszczeń
CI engine
engine speed
road tests
exhaust emissions
Opis:: W artykule zaprezentowano wyniki badań drogowych samochodu dostawczego w warunkach jazdy pozamiejskiej. Celem badań było zweryfikowanie tezy traktującej o znacznym wzroście emisji związków toksycznych spalin wraz ze wzrostem prędkości obrotowej silnika spalinowego. W efekcie podjętej analizy uzyskano wyniki dotyczące obciążeń środowiskowych dla różnej prędkości jazdy samochodem, przy zastosowaniu różnego biegu. Stosowanie maksymalnie wysokiego biegu przez kierujących pojazdami, możliwego do zastosowania w danych warunkach eksploatacji pojazdu, jest szczególnie podkreślane przez propagatorów ekologicznego stylu jazdy, określanego mianem eco-drivingu. W artykule rozpatruje się zagadnienie emisji związków gazowych w spalinach, takich jak: tlenek węgla, węglowodory oraz tlenki azotu, w odniesieniu do pojazdu użytkowego typu LDV, napędzanego silnikiem o zapłonie samoczynnym. W wykonanych pomiarach wykorzystano mobilną aparaturę do badań toksyczności spalin typu PEMS. Badania przeprowadzono w rzeczywistych warunkach ruchu samochodu – przejazdy drogą ekspresową w rejonach metropolii poznańskiej. Na podstawie pozyskanych danych eksperymentalnych dokonano oceny użytkowania pojazdu uwzględniając minimalną emisję toksycznych zanieczyszczeń w spalinach.
The article presents road tests results of a delivery van in extra-urban driving conditions. The aim of this study was to verify the thesis of the significant increase in the emission of toxic gases with increasing engine speed. As a result of the undertaken analysis the results on different environmental pressures for speed driving were taken, using different gear. The use of a high gear, possible for use in given vehicle operating conditions, it is particularly emphasized by proponents of ecological driving style, which is called the eco-driving. The article examines the issue of emissions in the exhaust gases, such as carbon monoxide, hydrocarbons and nitrogen oxides in relation to the utility vehicle of LDV type, driven by compression ignition engine. The measurements were made using mobile equipment PEMS type for testing the toxicity of exhaust gases. The study was conducted in real traffic conditions of the car – the expressway drives in Poznan metropolitan areas. On the basis of obtained experimental data the vehicle using, having a minimum emission of toxic pollutants in the exhaust, was evaluated.
Źródło:: Combustion Engines; 2015, 54, 3; 456-460
2300-9896
2658-1442
Pojawia się w:: Combustion Engines
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Non-repeatability of exhaust emission test results
Niepowtarzalność wyników badań emisji zanieczyszczeń z silnika spalinowego
Autorzy:: Chłopek, Z.
Rostkowski, J.
Powiązania:: https://bibliotekanauki.pl/articles/133027.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:: combustion engine
exhaust emissions
non-repeatability
silnik spalinowy
emisja zanieczyszczeń
niepowtarzalność
Opis:: The investigations into non-repeatability of the properties of combustion engines are not yet sufficiently formalized. The paper formally proposes a measure of assessment of the non-repeatability of object properties. As an example of the assessment of the non-repeatability of engine properties, results of investigations performed on the Detroit Diesel Series 50 engine have been presented. Unit exhaust emissions were evaluated as well as unit fuel consumption in HDDTT and ETC dynamic tests.
Badania niepowtarzalności właściwości silników spalinowych nie są dotychczas dostatecznie sformalizowane. W pracy zaproponowano formalnie miarę oceny niepowtarzalności właściwości obiektów. Jako przykład zastosowania oceny niepowtarzalności właściwości silników spalinowych przedstawiono wyniki badań silnika Detroit Diesel Series 50. Oceniano emisję jednostkową zanieczyszczeń oraz jednostkowe zużycie paliwa w testach dynamicznych HDDTT i ETC.
Źródło:: Combustion Engines; 2015, 54, 4; 92-100
2300-9896
2658-1442
Pojawia się w:: Combustion Engines
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Aircraft emissions during various flight phases
Emisje podczas różnych faz lotu samolotów
Autorzy:: Głowacki, P.
Kawalec, M.
Powiązania:: https://bibliotekanauki.pl/articles/133264.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:: turbine engine
pollutants
exhaust emissions
silnik turbinowy
emisja gazów wylotowych
gazy trujące
Opis:: Article presents methodology of pollutants quantitative estimation emitted by turbine engines. Provides calculation results of aircraft CO₂, CO and NO_x effusion using fuel consumption data taken from aircraft Flight Data Recorder (FDR) in the so–called landing and takeoff cycle (LTO) and during remaining flight phases (climb from 3000 feet to cruise altitude, cruise, descent to 3000 feet) of various aircraft types. The authors would like to draw attention of the aviation professionals to the fact that amount of toxic content in the exhaust from the turbine engine is significant especially during cruise, but turbine engine emission standards are applied only to LTO cycle defined in the ICAO Annex 16 vol.2. The article gives an example of CO and NO_x emission estimation based on engine performance taken from ICAO Engine Emission Data Bank. Such engine authors named “ideal”. Calculations were done using actual values of aircraft fuel consumption and duration of the airplane maneuvers for each flight.
Artykuł opisuje metodologię ilościowego oszacowania emisji toksycznych składników spalin przez lotnicze silniki turbinowe. Prezentuje wyniki obliczeń emisji CO₂, CO i NO_x na podstawie danych z pokładowego rejestratora parametrów lotu samolotu. Kalkulacji dokonano dla cyklu startu i lądowania i pozostałych faz lotu (wznoszenie z 3000 stóp do wysokości przelotowej, przelot, schodzenie do wysokości 3000 stóp) samolotów różnych typów. Autorzy pragną zwrócić uwagę ekspertom zajmującym się lotnictwem na fakt, że ilość toksycznych składników spalin emitowanych przez silniki odrzutowe jest szczególnie duża w trakcie przelotu, a normy obowiązują dla cyklu startu i lądowania zdefiniowanego w aneksie 16 t.2 ICAO.W artykule podano przykłady oszacowania emisji CO i NO_x posługując się charakterystykami silników opracowanym i na podstawie danych zawartych w bazie danych ICAO. Silniki te nazwano „idealnymi”. Obliczeń dokonano posługując się bieżącymi danymi zużycia paliwa i czasu manewrów samolotów dla każdego lotu.
Źródło:: Combustion Engines; 2015, 54, 3; 229-240
2300-9896
2658-1442
Pojawia się w:: Combustion Engines
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Exhaust emissions of jet engines powered by biofuel
Autorzy:: Merkisz, Jerzy
Jasiński, Remigiusz
Łęgowik, Anna
Olejnik, Aleksander
Powiązania:: https://bibliotekanauki.pl/articles/2098181.pdf
Data publikacji:: 2021
Wydawca:: Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:: aviation
exhaust emissions
jet engine
biofuel
lotnictwo
emisja spalin
silnik odrzutowy
biopaliwo
Opis:: Biofuel use is one of the basic strategies to reduce the negative impact of aviation on the environment. Over the past two decades, a number of biofuels produced from plants, lubricants and maintenance products have been developed and introduced. New fuels must have specific physicochemical parameters and meet stringent standards. his article presents a comparative analysis of the exhaust emissions measurement results from jet engines powered by traditional aviation kerosene and its blends with ATJ (Alcohol to Jet) biofuel. The concentrations of carbon dioxide, carbon monoxide and hydrocarbons were measured. Measurements were conducted in laboratory conditions for various engine load values. Based on the analysis, it was found that the use of biofuel increases the concentration of carbon monoxide and hydrocarbons in the exhaust gas relative to aviation kerosene. The use of biofuel did not result in an increase in fuel consumption and related carbon dioxide emissions. Based on the conducted research, it was found that biofuel use did not affect the ecological properties of the engine significantly. In addition, a correlation analysis of the measurement results from both engines was carried out.
Źródło:: Transport Problems; 2021, 16, 4; 199--206
1896-0596
2300-861X
Pojawia się w:: Transport Problems
Dostawca treści:: Biblioteka Nauki

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