Temat: fuel - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Discussion over correctness of methods used for test of resistance fuels to ageing processes
Autorzy:: Dzięgielewski, W.
Kulczycki, A.
Powiązania:: https://bibliotekanauki.pl/articles/241909.pdf
Data publikacji:: 2014
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: fuel
storage
fuel aging
Opis:: Research of usefulness of fuels for long-term storage is an important research of products of special use (meant for stock keeping as national or military reserves). Important fact is that fuels after storage should be used according to their initial use so their phisico-chemical and exploratory properties should remain the same during the whole storage cycle. Basic condition, enabling to foreseen that fuel will keep its quality at sufficient level in certain timeframe should be positive results of ageing tests. Below the doubts are presented whether methodology of evaluation is correct because of important differences in mechanisms of accelerated laboratory tests as well as real storage in typical conditions of storage tanks with large capacity. Differences in courses of chemical reactions and conditions of their initiation and course were pointed out. Scheme of equipment for marking content of existing gums, scheme of equipment for testing induction period, scheme of filtering and oxidizing equipment to test resistance of fuel to oxidation, effectiveness of collisions of molecules of reactants, scheme of chemical ageing process of fuels storaged in different temperature, function for different conditions ageing process of FAME, influence of value of potential molecules energy on initializing of chemical reactions are presented in the paper.
Źródło:: Journal of KONES; 2014, 21, 4; 103-109
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The method, based on storage simulator and IR – VIS spectroscopy, for predicting the allowable time of storage of biocomponents for CI engines
Autorzy:: Dzięgielewski, W.
Kaźmierczak, U.
Kulczycki, A.
Okniński, R.
Stefanowicz, P.
Powiązania:: https://bibliotekanauki.pl/articles/242434.pdf
Data publikacji:: 2016
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: fuel
fuel aging
oils
lubrication
biocomponents
Opis:: The paper presents the results of investigations concerning a new method used for predicting the allowable time of storage of biocomponents – FAME. The method was based on laboratory research carried out with the use of a storage tank simulator. The aging process was carried out in the conditions increasing the reaction rate – at high temperature. There are several methods/procedures used for predicting the allowable time of storage of fuels and biocomponents – FAME, but all of them are based on tests at the temperature so high that the mechanism of aging process is different than the one observed in storage tanks. It was assumed that the aging process could be divided into two stages: at the first stage, the aging precursors are created and at the second stage, precursors are converted into the fuel aging products. These products lead to changes in fuel properties. The kinetics of precursor creation determines the rate of all reactions, which lead to the final aging products. It was found that the rate of reaction at the first stage of fuel aging can be effectively increased by an increase in temperature and even relatively high temperature does not change the mechanism of the creation of aging precursors. The method that has been worked out makes it possible to control the mechanism of aging process during quick laboratory tests. The products of aging processes were detected with the use of the IR-VIS spectrometry. The allowable time of storage was determined for several FAME samples on the basis of quick laboratory tests. The results of laboratory quick tests were verified by comparing them with the results of the aging process of FAME in storage tanks. On the basis of the test results, the algorithm of allowable time of FAME storage calculation was worked out.
Źródło:: Journal of KONES; 2016, 23, 1; 115-121
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Measurement methods for determining the parameters of injectors in internal combustion engines
Autorzy:: Grzesik, N.
Zaremba, R.
Powiązania:: https://bibliotekanauki.pl/articles/242709.pdf
Data publikacji:: 2014
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: engine
fuel injectors
fuel spray diagnostics
Opis:: The general principle of internal combustion engine operation has not changed since the engine structure was first developed. However, the system of blending the air and fuel into a mixture with the parameters ensuring effective fuel combustion processes has been evolving over the years. In the simplest engines, the fuel-air mixture was produced in the inlet manifold i.e. in the carburettor systems while the more advanced motors were equipped with the system of Single Point Injection (SPI), and further on with the Multi-Point Injection (MP!) where each of the cylinders has its own individual injector. The Multi-Point Injection (MPI) system has evolved into a Gasoline Direct Injection (GDI) system where the injector sprays fuel directly into the combustion chambers. Presently, due to the restrictive regulations governing the issues of exhaust gases ' composition and emissions, manufacturers of the engines used mainly in the automotive industry apply the system of multi-point indirect injection to the intake manifold or the system of direct fuel injection to the combustion chambers. In both systems, these are the injectors dosing precise amounts offuel, which are the most important, and the most accurate elements of the system. The article presents the injectors' macro- and microscopic parameters used for the purpose of the fuel dispersants' technical condition and performance assessment. Additionally, it refers to direct and optical methods of microscopic parameters measurement enabling fuel spray diagnostics.
Źródło:: Journal of KONES; 2014, 21, 4; 153-159
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Concept of a multi-fuel, low-power generator with a self-ignition, common rail gas engine
Autorzy:: Piętak, A.
Imiołek, M.
Imiołek, A.
Powiązania:: https://bibliotekanauki.pl/articles/247142.pdf
Data publikacji:: 2011
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: dual-fuel feeding
CNG
steering
renewable fuel
Opis:: An idea of using biomass for generating electricity and heat leads to new solutions for power generators, adapted to be supplied with gaseous and liquid biofuels. At present, there is a growing interest in low-power generators. This type of energy production is termed 'scattered energy generation'. It is expected that generating energy in small units situated close to energy consumers may bring about substantial benefits. It is assumed that in a scattered energy generation system, energy will be produced from local fuels, such as broadly understood biomass as a primary component for production of gaseous and liquid biofuels to power low-power energy generators. An adequate amount of biomass must be secured to ensure that biogas can be produced all year round. The easiest way to store highly efficient biomass is to ensile maize and rye as well as grass. The amounts of biogas obtained from these two types of silage are comparable. Using rye as a renewable energy source for production of either bioethanol or biogas is economically viable for at least two reasons: rye grows on poor class soils and rye cultivation technology can be reduced to just nitrogen fertilization. In conclusion, it seems reasonable to generate energy in Poland in scattered energy generation systems from crops grown for this purpose. Currently, gas-powered engines are being in several ways.
Źródło:: Journal of KONES; 2011, 18, 4; 349-356
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Diagnostic investigations of turbojet injectors
Autorzy:: Opara, T.
Zaremba, R.
Powiązania:: https://bibliotekanauki.pl/articles/241589.pdf
Data publikacji:: 2013
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: aircraft turbine engines
fuel injectors
fuel spray diagnostics
Opis:: The basic aim of injectors is to supply a specified amount of fuel to the turbine engine combustion chamber. The fuel should be atomized to the extent which enables its evaporation and helps to produce a homogenous mixture of fuel vapour and air, thus ensuring high efficiency of the combustion process. The article contains the review of methods and diagnostic equipment used in Aviation Overhaul Works (Lotnicze Zakady Remontowe) in assessing the suitability of turbine jet as well as turboprop and helicopter engines sprayers. Injectors are evaluated on the basis of their fuel delivery Q(p) which determines the volume of fuel sprayed in the time unit, the spray cone angle (p) and the parameter J(p) which describes the asymmetry in the circumferential spray density distribution j(). These parameters are dependent both on structural characteristics of the sprayers as well as on fuel delivery pressure p in the fuel supply pipe. In the standard diagnostic stations, the measurement of fuel delivery Q(p) is carried out only for the two fuel supply pressures, corresponding to the extreme engine ranges, that is the rotational speed of the idle running nbj and maximum rotational speed nmax. Injectors undergo the leak test at the fuel pressure 5 to 10 times bigger than the nominal value. Tolerances adopted by the producers for the measured parameters characterizing the injectors are also presented.
Źródło:: Journal of KONES; 2013, 20, 1; 247-254
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Assessment of dynamic qualities of the G9T engine with common rail system, FED with battlefield-use fuel blends with a biocomponent
Autorzy:: Karczewski, M.
Wilk, M.
Powiązania:: https://bibliotekanauki.pl/articles/244600.pdf
Data publikacji:: 2011
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: combustion engine
fuel system
F-34 fuel
ester
Opis:: The main aim of the study was to experimentally determine the influence of fuel blends of F-34 with biocomponents (rapeseed methyl esters and methyl alcohol) on the performance of an engine with high pressure fuel injection; Common Rail system was used as the example. The study included measurements of useful parameters of combustion and composition of exhaust gas. The studied engine was Renault G9T engine with Common Rail fuel system, fed with the following fuels: fuel base (diesel oil); aviation fuel, code NATO F-34; fuel blends of F-34 and rapeseed methyl esters of higher fatty acids; fuel blends of F-34 and anhydrous ethyl alcohol. The study showed that the parameters of Renault G9T engine with high pressure injection system fed with fuel blends of F-34 with biocomponents changed in comparison to those obtained with the use of the fuel base: diesel oil. As a result of the study it must be stated that fuel blends of F-34 with RME and F-34 with ethyl alcohol can be used as alternative fuel for diesel engines with high pressure Common Rail injection system.
Źródło:: Journal of KONES; 2011, 18, 1; 243-251
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Investigation of diesel engine with the supply system type common rail supplied fuel F-34 and biofuel
Autorzy:: Karczewski, M.
Wilk, M.
Powiązania:: https://bibliotekanauki.pl/articles/244141.pdf
Data publikacji:: 2009
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: combustion engine
fuel system
F-34 fuel
ester
Opis:: Problems of the power supply in military vehicles grow with the growing number of vehicles in armies. Moreover, biocomponents additions which are added to the basic fuels change its properties. Therefore undertaking work to adopt engines to supply them with fuels coming from renewable sources is essential. The purpose of that research is indicating the influence of fuel feeding system on useful parameters and composition of exhaust exhaust gases of self-igniting engine Renault G9T with high pressure injection mechanism „Common Rail. The researches were conducted while the engine was supplied with six kind of the fuel: basic fuel which was diesel oil, aviation fuel coded NATO F-34, fuel mixtures: F-34 methyl esters of higher fatty acids from rapeseed oil. In the result, it can be stated that the achievements of the engine Renault G9T with high pressure injection system feed with F-34 fuel and mixtures have hanged partly. Conducted examination has showed the essential influence between the fuel and performance of Renault G7T engine with high-pressure injection system feed with F-34 fuel mixtures with methyl esters of higher fatty acids. The increase of EMKOR share in F-34 fuel caused the decrease of useful power, increase of fuel consumption and decrease of combustion smoke.
Źródło:: Journal of KONES; 2009, 16, 1; 245-253
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Modernization of the direct operation fuel feeding system of diesel engine
Autorzy:: Salykin, E. A.
Slavutskij, V. M.
Lipilin, V. I.
Berezjukov, D. S.
Powiązania:: https://bibliotekanauki.pl/articles/244255.pdf
Data publikacji:: 2015
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: direct operation fuel feeding system
speed forcing of high pressure fuel pump
fuel feeding
Opis:: This paper describes the way of modernization of the direct operation fuel feeding system of diesel engine. Effective, ecological and economical characteristics of a modern diesel engine are greatly de-termined by parameters of using fuel-feeding system. Thus, in modern conditions, fuel-feeding systems have to fulfil specified requirements, which are mainly connected with fuel supply process intensification, possibility of adaptable regulation of fuel injection lead angle, cycle fuel delivering and injection characteristic at full range of engine operation regimes. At present time accumulator fuel feeding systems Common Rail type, fulfil these requirements best of all. However, despite its advantages, those kinds of systems have number of disadvantages. The main ones are high price and structural complexity of the system elements. Because of this Common Rail does not have wide using in the diesel engines with number of cylinders less than three. Although that type of diesels exactly is universal mechanical energy, source and can be used in many types of machinery, including ones with strict ecological norms. However, up to now these engines are equipped with the direct operation fuel feeding system that despite its high reliability and low price is worse than accumulator systems in the injection pressure level and possibilities of fuel feeding process control. Thus, main objective of a modernization of the direct operation fuel feeding system is topical. Speed forcing of high-pressure fuel pump was used. Maximal injection pressure is successfully increased 1.42 times. It provides intensification of fuel injection process. Implementation of the electronic control allows counting this method of fuel feeding system modernization promising for small diesel engines.
Źródło:: Journal of KONES; 2015, 22, 1; 273-276
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Laser research of fuel atomization and combustion processes in the aspect of exhaust gases emission
Autorzy:: Jankowski, A.
Powiązania:: https://bibliotekanauki.pl/articles/243315.pdf
Data publikacji:: 2008
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: combustion engine
fuel preparation
combustion processes
fuel spray
ecology
Opis:: The fuel injection phenomena belongs to the most essential processes, which are object of many experimental and theoretical works, indispensable for development of contemporary internal-combustion engines, both the spark and compression ignition. The direct injection of fotel to the engine combustion chamber belongs to most advanced solutions and must realize at least two or even more different strategies of engine performance. Article presents the various research methods of the fuel atomization processes, being concentrated on laser methods, from which deserves on the emphasis the Particle Image Velocimetry (PIV) system, the Laser Doppler Velocimeter (LDV) system and Phase Doppler Particle Analyzer (PDPA) system. Article presents theoretical analysis relating the atomized fuel stream. The results of research based on the laser research equipment are also submitted in the article. Moreover presented are the results ofresearch of the combustion process in the fixed volume chamber, where essentially two different strategies of the combustion process of homogenous and heterogeneous load were realized. The properly shaped fuel stream permits on obtainment of repeatable ignition and combustion in the wide range of the mixture variance. The essential meaning has the fuel stream disintegration, which influences advantageously on the level of the toxic exhaust elements emission, particularly on the hydrocarbon emission level because of the ignition dropout elimination and on the level of the nitrogen oxides emission because of short sojourn time of the fuel droplets in the combustion zone.
Źródło:: Journal of KONES; 2008, 15, 1; 119-126
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: The influence of oxygenates on lubricity of fuels for CI engines
Autorzy:: Kulczycki, A.
Powiązania:: https://bibliotekanauki.pl/articles/244244.pdf
Data publikacji:: 2015
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: CI engine
CI engine fuel
lubrication additives
fuel lubricity
Opis:: Lubricity of fuels for CI engines becomes one of very important parameter since the sulphur content was decreased to 50 and actually 10 ppm. To provide effective lubrication of fuel pumps and unit injectors elements, in case fuel does not contain organic sulphur compounds, the oxygen containing organic compounds are added as lubrication additives. Biocomponents are usually introduced into mineral diesel fuel containing additives package, which includes lubricating additive (organic acid). The aim of this paper is investigation of the influence of polar oxygenates added to petroleum diesel fuel in concentration between 5 and 20% (V/V) on lubricating additive effectiveness in protective layer creation. The results of HFRR tests obtained for blends of commercial diesel fuel containing lubricating additive with biobuthanol models (MB) leads to conclusion that: − generally the buthanol isomers addition increases wear of upper ball of HFRR apparatus, − wear of upper ball of HFRR apparatus depends on the average film thickness and does not depend on tested fuels viscosity at 40°C, − dilution of commercial diesel fuel by biobuthanol models and consequently decreasing of lubricating additive concentration cannot be the only reason of deterioration of tested blends lubricity. It was concluded, that the possible reason of lubricity deterioration by buthanol added to commercial diesel fuel in concentration between 5 and 20% (V/V) are antagonistic interactions between oxygenates (buthyl alcohol) and lubricating additive. These antagonistic interactions depend on the structure of buthanol isomers.
Źródło:: Journal of KONES; 2015, 22, 2; 121-128
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Some aspects of validation of the fuel consumption measurement method
Autorzy:: Taubert, S.
Majerczyk, A.
Powiązania:: https://bibliotekanauki.pl/articles/244622.pdf
Data publikacji:: 2013
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: fuel consumption
validation
Opis:: Currently produced diesel engines of different manufacturers, used for the same applications, have comparable specific fuel consumption. Therefore, the laboratories measuring fuel consumption, especially in comparative tests, require the use of more accurate methods of measurement. The Environmental Protection Centre of Motor Transport Institute has recently implemented the fuel consumption measurement method using KMA Mobile flow meter produced by AVL company. This device allows to carry out measurements by both volumetric and mass method, thanks to builtin device for measuring the fuel density. Due to some customers requirements the laboratory began with preparations for obtaining accreditation of the Polish Centre of Accreditation for the procedure of measuring fuel consumption by volumetric and mass method. One of the requirements of the Polish Centre for Accreditation is carrying out the validation of the new method. It can be done by comparing the results obtained with new method with the results of the method already validated. The validated method is described in the regulation. This is the carbon balance method described in UN-ECE Regulations No. 101. The calculation of fuel consumption according to this method is based on a measurement of pollutants emissions of carbon dioxide (CO2), carbon monoxide (CO) and hydrocarbons (THC). This paper describes the fuel consumptions measuring procedure using two methods: mass method using a AVL KMA Mobile flow meter and carbon balance method using the AVL AMA i60 analyzers. To verify measurement results additionally there was fuel consumption measured with using a scale, as a difference of the external fuel tank mass change, from which the vehicle was fuelled during the tests
Źródło:: Journal of KONES; 2013, 20, 4; 457-464
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Effect of the fuel injection pressure on the combustion process in a PFI boosted spark-ignition engine
Autorzy:: Merola, S. S.
Sementa, P.
Tornatore, C.
Vaglieco, B. M.
Powiązania:: https://bibliotekanauki.pl/articles/244891.pdf
Data publikacji:: 2008
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: PFI SI engine
boosting
fuel injection
fuel deposition
optical diagnostics
Opis:: In this paper, low-cost solutions were proposed to reduce the fuel consumption in a boosted port fuel injection spark ignition (PFI SI) engine, taking into account the engine performances and the pollutants emission. To this purpose, the optical characterization of the fuel injection and of the combustion process was carried out in a PFI SI engine. The experiments were performed on a partially transparent single-cylinder SI engine, equipped with a four-valve head and an external boost device. The intake manifold was optically accessible through three holes that allowed the introduction of an endoscope and of optical fibres. The standard injection condition planned by the engine manufacturer was investigated; it consisted in the fuel injection at 3.5 bar when the intake valves were closed. Moreover, the fuel injection with open intake valves was tested; 3.5 and 6.5 bar fuel pressures were studied for open and closed valves conditions. Optical techniques based on 2D-digital imaging were used to follow the fuel injection spray in the intake manifold and the flame propagation in the combustion chamber. The results of in-cylinder optical investigations were correlated with the engine performances and with the exhaust emissions.
Źródło:: Journal of KONES; 2008, 15, 4; 341-349
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Experimental research on influence of the fuel nozzle geometry on the fuel consumption of the marine 4-stroke diesel engine
Autorzy:: Kowalski, J.
Nagórski, J.
Sikora, G.
Powiązania:: https://bibliotekanauki.pl/articles/245963.pdf
Data publikacji:: 2018
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: marine engine
fuel consumption
fuel injection
experimental measurements
compression ignition engine
Opis:: The article presents experimental research that has been carried out on a marine, 4-stroke, 3-cylinder, turbocharged engine. During testing, the engine operated at a constant rotational speed of 750 rpm and a load from 0 kW to 280 kW. The engine was fuelled by diesel oil of known specification and loaded by electric generator with water resistance. The fuel consumption was measured during the engine operation with fuel nozzles with different geometries. The measurement of the fuel consumption was carried out using a weighing system that was designed, constructed, and manufactured by the “KAIZEN” scientific research team at the Faculty of Mechanical Engineering at the Gdynia Maritime University. The results of measurements show changes in the fuel consumption by the engine with the geometry of the injected fuel spray. The research facility is Sulzer’s 3- cylinder, 4-stroke, turbocharged AL25/30 piston engine. The fuel system consists of Bosch injection pumps controlled by a rotation speed regulator. Fuel injectors are centrally located in the cylinder heads of the engine.
Źródło:: Journal of KONES; 2018, 25, 2; 185-190
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Analysis concerning possibilities of reduction of toxic substances and co2 emission by use of dual fuel diesel engines for seagoing ships main propulsion
Autorzy:: Giernalczyk, M.
Górski, Z.
Powiązania:: https://bibliotekanauki.pl/articles/244704.pdf
Data publikacji:: 2014
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: toxic substances
carbon dioxide
fuel consumption
dual fuel engines
natural gas
Opis:: The goal of the paper is to focus the problem of emission of toxic compounds e.g. NOx, SOx and CO2 from seagoing ships to environment. The VI Amendment to Marpol Convention concerning prevention against air pollution by seagoing ships brought into practice in May 19th 2005 forced ship owners to use means for reduction of environment harmful substances emission to atmosphere. Considerable reduction of these harmful substances can be use dual fuel diesel engines for ship propulsion. Dual fuel engines are fuelled by natural gas having methane as main component. Leading producers of marine diesel engines introduced into production diesel engines DF (Dual Fuel) type. These engines can be fuelled alternatively with natural gas or with heavy fuel oil and marine diesel oil. Today the propulsion by diesel engines fuelled with natural gas is the most popular on ships carrying natural gas cargo i.e. LNG carriers (Liquefied Natural Gas Carriers). Natural gas is freight in liquid form under atmospheric pressure in temperature -163 °C. Due to heat penetration into cargo tanks, the liquefied gas evaporates. Evaporated cargo BOF (Boil Off Gas) is used as a fuel in ship diesel engines. However, dual fuel engines are used on other types of ships not only on LNG carriers. A number of seagoing ships fuelled with natural gas are now under construction. For example container ship 9,000 TEU in Japan shipyard Kawasaki Heavy Industries or container ship 14,000 TEU in Korean shipyard Daewoo Shipbuilding & Marine Engineering for company CMA-CGM. Ships fuelled with natural gas e.g. modern ferries are also built by Stocznia Remontowa Shipbuilding in Poland for Norwegian owner. Adaptation of presently operated ships for fuelling with natural gas is also considered.
Źródło:: Journal of KONES; 2014, 21, 2; 77-82
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

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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