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    Wyświetlanie 1-7 z 7
    Tytuł:
    Performance and emissions of a single cylinder diesel engine operating with rapeseed oil and jP-8 fuel blends
    Autorzy:
    Labeckas, G.
    Kanapkienė, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/133075.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    diesel engine
    rapeseed oil
    JP-8 fuel
    engine performance
    exhaust emissions
    silnik spalinowy
    olej rzepakowy
    wydajność silnika
    emisja spalin
    Opis:
    The article presents experimental test results of a DI single-cylinder, air-cooled diesel engine FL 511 operating with the normal (class 2) diesel fuel (DF), rapeseed oil (RO) and its 10%, 20% and 30% (v/v) blends with aviation-turbine fuel JP-8 (NATO code F-34). The purpose of the research was to analyse the effects of using various rapeseed oil and jet fuel RO90, RO80 and RO70 blends on brake specific fuel consumption, brake thermal efficiency, emissions and smoke of the exhaust. The test results of engine operation with various rapeseed oil and jet fuel blends compared with the respective parameters obtained when operating with neat rapeseed oil and those a straight diesel develops at full (100%) engine load and maximum brake torque speed of 2000 rpm. The research results showed that jet fuel added to rapeseed oil allows to decrease the value of kinematic viscosity making such blends suitable for the diesel engines. Using of rapeseed oil and jet fuel blends proved themselves as an effective measure to maintain fuel-efficient performance of a Didiesel engine. The brake specific fuel consumption decreased by about 6.1% (313.4 g/kW·h) and brake thermal efficiency increase by nearly 1.0% (0.296) compared with the respective values a fully (100%) loaded engine fuelled with pure RO at the same test conditions. The maximum NOx emission was up to 13.7% higher, but the CO emissions and smoke opacity of the exhaust 50.0% and 3.4% lower, respectively, for the engine powered with biofuel blend RO70 compared with those values produced by the combustion of neat rapeseed oil at full (100%) engine load and speed of 2000 rpm.
    Źródło:
    Combustion Engines; 2015, 54, 3; 13-18
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Combustion, performance and exhaust emissions of the diesel engine operating on jet fuel
    Autorzy:
    Labeckas, G.
    Slavinskas, S.
    Vilutiene, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/248056.pdf
    Data publikacji:
    2012
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    diesel engine
    jet fuel
    autoignition
    combustion
    performance
    emissions
    smoke
    Opis:
    The article focuses on bench testing results of a four-stroke, four-cylinder, direct-injection, naturally aspirated diesel engine operating on the normal 95vol% (class C) diesel fuel + 5vol% RME (DF), F-34 jet fuel (JF) and jet fuel F-34 treated with the cetane improver (JF+0.12vol%). The purpose of the research is to investigate the availability to use of military F-34 jet fuel for land-based direct injection diesel engine powering and examine the effect of F-34 fuel and F-34 fuel treated with 0.12vol% 2-ethylhexyl nitrate on the autoignition delay, combustion, engine performance, emissions and smoke opacity of the exhausts. The peak in-cylinder gas pressure generated from JF and JF+0.12vol% is lower by 4.3% and 2.8% at 1400 min–1 speed, and 2.5% and 5.7% at 2200 min–1 speed compared to that 86.6 MPa and 82.5 MPa of the normal diesel. At rated 2200 min–1 speed, the use of treated jet fuel leads to smoother engine performance under all loads and the maximum cylinder pressure gradient lowers by 9.4% as against that 15.9 bar/deg of base diesel. The minimum brake specific fuel consumption (bsfc) for F-34 and treated F-34 fuels decreases by 4.8% and 3.5% at 1400 min–1 speed and increases by 2.7% and 3.7% at 2200 min–1 speed compared to 249.5 g/kWh and 251.8 g/kWh values of base diesel. Maximum NO emissions produced from fuels JF and JF+0.12vol% decrease by 11.5% and 7.0% at 1400 min–1, and 17.1% and 17.3% at 2200 min–1 speed compared to 1705 ppm and 1389 ppm emanating from the normal diesel. Maximum CO emissions produced from jet fuel JF and JF+0.12vol% decrease by 39.3% and 16.8% compared to that 4988 ppm produced from base diesel running at 1400 min–1 speed. At 2200 min-1 speed, the ecological effect of using fuel F-34 fuel decreases and the CO sustains over the whole load range at the same level and increases by 2.5% and 3.0% with regard to the normal diesel operating under high load. The HC emission also is lower by 78.3% and 58.8% for low and high loads compared to 230 ppm and 1820 ppm of the normal diesel running at 1400 min–1 speed. The smoke opacity ,generated from fuels JF and JF+0.12vol% sustains at lower levels over the all load range with the maximum values decreased by 14.6% and 8.1% with regard to 94.9% of the normal diesel operating at 1400 min–1 speed. The test results show that military F-34 fuel is a cleaner-burning replacement of diesel fuel and suggests fuel economy with reduced all harmful species, including NO, NO2, NOx, CO, HC, and smoke opacity of the exhausts.
    Źródło:
    Journal of KONES; 2012, 19, 1; 227-236
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The effect of rapeseed oil blending with ethanol on engine performance and exhaust emissions
    Autorzy:
    Labeckas, G.
    Slavinskas, S.
    Pauliukas, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/246446.pdf
    Data publikacji:
    2007
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    diesel engine
    rapeseed oil (RO)
    ethanol
    effective parameters
    emissions
    smoke opacity
    Opis:
    The article presents the bench testing results of a four stroke, four cylinder, direct injection, unmodified, naturally aspirated diesel engine operating on neat rapeseed oil (RO) and its 2.5vol% (ERO2.5) and 7.5vol percent (ERO7.5) blends with ethanol. The purpose of the research was to investigate the effect of ethanol inclusion in the RO and preheating temperature on bio-fuel viscosity, engine brake power, specific fuel consumption, break thermal efficiency and emission composition changes, especially NO, NO2, NOx, CO, CO2, HC and smoke opacity of the exhausts. Inclusion in the RO 2.5 and 7.5vol% of ethanol the blend viscosity at ambient temperature of 20 centigrade diminishes by 9.2 and 28.3%. During operation under constant air-to-fuel equivalence ratio gamma = 1.6, blends ERO2.5 and ERO7.5 ensure the brake mean effective pressure (bmep) lower at the maximum torque 1800 min-1 by 0.5 and 2.3% (bmep=0.770 mpa) and at rated 2200 min1 speed by 2.4 and 9.1% (bmep=0.740 mpa), correspondingly, than that of neat RO case. The bsfc at maximum torque (248.7 g/kwh) and rated power (247.5 g/kwh) for blends ERO2.5 and ERO7.5 is higher by 1.3-4.4% and 4.2-10.7% and the brake thermal efficiency lower by 0.5-1.5% and 3.3-7.6%, respectively. The tests revealed that during operation of the fully loaded engine at rated 2200 min-1 speed, ethanol inclusion in the RO up to 7.5vol% diminishes NO, nox, HC, CO2 emissions, smoke opacity and temperature of the exhausts however it may increase simultaneously NO2, NO2/NOx and CO emissions.
    Źródło:
    Journal of KONES; 2007, 14, 3; 331-338
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    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
    Artykuł
    Tytuł:
    The effect of oxygenated diesel-n-butanol fuel blends on combustion, performance, and exhaust emissions of a turbocharged crdi diesel engine
    Autorzy:
    Labeckas, G.
    Slavinskas, S.
    Rudnicki, J.
    Zadrąg, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/259929.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    diesel engine
    diesel-n-butanol blends
    combustion phenomenon
    performance efficiency
    smoke
    pollutant emissions
    Opis:
    The article deals with the effects made by using various n-butanol-diesel fuel blends on the combustion history, engine performance and exhaust emissions of a turbocharged four-stroke, four-cylinder, CRDI 1154HP (85 kW) diesel engine. At first, load characteristics were taken when running an engine with normal diesel fuel (DF) to have ‘baseline’ parameters at the two ranges of speed of 1800 and 2500 rpm. Four a fossil diesel (class 1) and normal butanol (n-butanol) fuel blends possessing 1 wt%, 2 wt%, 3 wt%, and 4 wt% (by mass) of n-butanol-bound oxygen fractions were prepared by pouring 4.65 wt% (BD1), 9.30 wt% (BD2), 13.95 wt% (BD3), and 18.65 wt% (BD4) n-butanol to diesel fuel. Then, load characteristics were taken when an engine with n-butanol-oxygenated fuel blends at the same speeds. Analysis of the changes occurred in the autoignition delay, combustion history, the cycle-to-cycle variation, engine efficiency, smoke, and exhaust emissions NOx, CO, THC obtained with purposely designed fuel blends was performed on comparative bases with the corresponding values measured with ‘baseline’ diesel fuel to reveal the potential developing trends.
    Źródło:
    Polish Maritime Research; 2018, 1; 108-120
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Raspredelenie kapel v processe raspylivaniâ dizelnogo topliva i ego smesi s biokomponentami
    Autorzy:
    Klyus, O.
    Labeckas, G.
    Slavinskas, S.
    Mažeika, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/906621.pdf
    Data publikacji:
    2013
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    diesel engine
    fuel injector
    atomized jet
    droplet distribution
    biofuel
    Opis:
    Droplet distribution in an atomized jet of Diesel fuel and biofuel mixture
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2013, 36 (108) z. 2; 93-97
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Combustion and performance parameters of a Diesel engine operating on ethanol-Diesel fuel blends
    Autorzy:
    Labeckas, G.
    Slavinskas, S.
    Lus, T.
    Klyus, O.
    Powiązania:
    https://bibliotekanauki.pl/articles/906622.pdf
    Data publikacji:
    2013
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    diesel engine
    ethanol
    diesel fuel
    autoignition delay
    combustion
    NOx
    CO
    HC emissions
    smoke opacity of the exhaust
    Opis:
    The article presents bench test results of a DI (60 kW) Diesel engine D-243 operating on class 2 Diesel fuel (DF) as baseline fuel and its 5vol%, 10vol% and 15vol% blends with anhydrous ethanol. The purpose of the research was to investigate the effect of the ethanol addition to Diesel fuel on the autoignition delay, combustion, engine performance efficiency and emissions of the exhaust. The results of engine operation on ethanol- Diesel blends are compared with baseline parameters of normal Diesel running at full (100%) load and rated 2200 rpm speed.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2013, 36 (108) z. 2; 102-109
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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