Temat: diesel - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Analysis of operating parameters and indicators of a compression ignition engine fuelled with LPG
Autorzy:: Garbala, K.
Piekarski, W.
Andrzejewska, S.
Witaszek, K.
Tematy:: diesel engine
dual-fuel engine
LPG+diesel
STAG LPG+diesel
silnik wysokoprężny
silnik podwójnego paliwa
LPG + diesel
STAG LPG + diesel; Pokaż więcej
Wydawca:: Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Powiązania:: https://bibliotekanauki.pl/articles/197594.pdf Link otwiera się w nowym oknie
Opis:: This article presents the possibilities for using alternative fuels to power vehicles equipped with compression ignition (CI) engines (diesel). Systems for using such fuels have been discussed. Detailed analysis and research covered the LPG STAG autogas system, which is used to power dual-fuel engine units (LPG+diesel). A description of the operation of the autogas system and installation in a vehicle has been presented. The basic algorithms of the controller, which is an actuating element of the whole system, have been discussed. Protection systems of a serial production engine unit to guarantee its factorycontrolled durability standards have been presented. A long-distance test drive and examinations of the engine over 150,000 km in a Toyota Hilux have been performed. Operating parameters and performance indicators of the engine with STAG LPG+diesel fuelling have been verified. Directions and perspectives for the further development of such a system in diesel-powered cars have been also indicated.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Analysis of application of chosen methods for tdc determination in marine diesel engines
Autorzy:: Łutowicz, M.
Tematy:: diesel engine
transport
marine diesel engine
indication
TDC; Pokaż więcej
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Powiązania:: https://bibliotekanauki.pl/articles/245396.pdf Link otwiera się w nowym oknie
Opis:: In the operating marine diesel engines the indication diagnostics tests are usually performed through a 0.5-1.0 me ter long indication channel which delays and disfigures the pressure signal being measured. the delay depends on the engine 's speed and load. the pressure sensor itself together with an amplifler is an additional source of delay and disfigurements, so the registered pressure curve is displaced even if theTDC piston's position hadbeen estimated with the highest accuracy. when the over exploited engine is being tested the angle of delay can achieve several degrees and differ for each cylinder. in that case cylinders' load is unequal and torsional vibrations occur in the engine operation. in case when some simplifying assumptions have been adopted the part of diagnostic information is lost what could lead to a false diagnosis. in the paper the attention is focused on the mistakes which could be made in the marine diesel engine diagnostics when different TDC assessment methods are used. TDC corrections with compression pressure analysis are possible only in case when crankshaft angle position is precise. in case of measurement with constant frequency such corrections are possible only when the engine is good balanced.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Comperative analysis of emision from engine fuelled with diesel and bio-diesel
Autorzy:: Koszałka, G.
Hunicz, J.
Kordos, P.
Tematy:: diesel engine
alternative fuel
bio-diesel
exhaust emissions; Pokaż więcej
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Powiązania:: https://bibliotekanauki.pl/articles/242081.pdf Link otwiera się w nowym oknie
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.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: A comparative assessment of operating characteristics of a diesel engine using 20% proportion of different biodiesel diesel blend
Autorzy:: Ramalingam, Senthil
Rajendran, Silambarasan
Ganesan, Pranesh
Tematy:: biodiesel diesel blend
performance
emission
diesel engine; Pokaż więcej
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Powiązania:: https://bibliotekanauki.pl/articles/243735.pdf Link otwiera się w nowym oknie
Opis:: The objective of the present work is to find out the viable substitute fuel for diesel and control of pollutants from compression ignition engines. Therefore, in this present investigation an attempt has been made to study the effect of 20% proportion of five different biodiesel diesel blend in diesel engine. The 20% proportion of biodiesel such as Jatropha, Pongamia, Mahua, Annona and Nerium and 80% of diesel and it is denoted as J20, P20, M20, A20 and N20 are used in the present investigation. The experimental results showed that the brake thermal efficiency of the different biodiesel blend is slightly lower when compared to neat diesel fuel. However, N20 blend, have shown improvement in performance and reduction in exhaust emissions than that of other biodiesel diesel blends. From, the experimental work, it is found that biodiesel can be used up to 20% and 80% of diesel engine without any major modification. The conducted experiments were conducted on a four cylinder four stroke DI and turbo charged diesel engine using biodiesel blends of waste oil, rapeseed oil, and corn oil with normal diesel. The peak cylinder pressure of the engine running with bio diesel was slightly higher than that of diesel. The experiments were conducted on a four cylinder four stroke diesel engine using bio diesel made from corn oil.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: The influence of diesel oil improvers on indices of atomisation and combustion in high-efficiency engines
Autorzy:: Pielecha, I.
Pielecha, J.
Skowron, M.
Mazanek, A.
Tematy:: diesel oil
diesel engine
improvers
fuel injection
fuel combustion; Pokaż więcej
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Powiązania:: https://bibliotekanauki.pl/articles/259914.pdf Link otwiera się w nowym oknie
Opis:: The process of fuel combustion in a diesel engine is determined by factors existing during liquid fuel injection and atomisation. The physicochemical properties of the fuel to a large extent decide upon the quality of this phase of cylinder fuelling. So it is important to ensure appropriate properties of a fuel affecting its atomisation and, as a result, combustion. The paper deals with the topic of diesel oil improvers and the analysis of their influence on atomisation and combustion indices. In the studies base diesel oil and a diesel fuel improved by a package of additives, were used. The process of conventional and improved fuel injection was analysed by using optical examinations. The amount of released heat was evaluated during the studies carried out on combustion. Significant aspects of the applied improvers in relation to fuel injection and its combustion have been indicated.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Wpływ zmiennych własności czynnika roboczego na parametry klasycznych obiegów Otto, Diesla i Sabathego
Influence of variable specific heats of working fluid on performance of air standard Otto, Diesel and Sabathe cycles
Autorzy:: Puławski, G.
Tematy:: silnik spalinowy
Diesel
konwersja energii
combustion engine
diesel; Pokaż więcej
Wydawca:: Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Powiązania:: https://bibliotekanauki.pl/articles/386265.pdf Link otwiera się w nowym oknie
Opis:: W artykule przedstawiono wpływ zmiennych właściwości czynnika roboczego na parametry w charaktery- stycznych punktach klasycznych obiegów silników tłokowych wewnętrznego spalania takich jak Otto, Diesel i Sabathe oraz na sprawność konwersji energii wyznaczaną z zastosowaniem tych obiegów. Wyniki analiz przedstawiono w postaci tabel i wykresów obrazujących zmiany parametrów obiegu wskutek zmienności ciepła właściwego czynnika roboczego.
This paper presents influence of variable specific heats of working fluid on the performance of air standard Otto, Diesel and Sabathe cycles. The mathematic models of air standard cycles with temperature dependent specific heats were made and compared to those which use constant specific heats. The results obtained in this study, presented in tables and charts, show signif- icant variations between the performance of cycles with constant and variable specific heats of working fluid.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Real road tests - exhaust emission results from passenger cars
Autorzy:: Merkisz, J.
Tematy:: exhaust emission
road tests
Diesel engines
diesel particulate filters; Pokaż więcej
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Powiązania:: https://bibliotekanauki.pl/articles/245491.pdf Link otwiera się w nowym oknie
Opis:: The paper presents the results of on-road exhaust emission tests of passenger car fitted with diesel engine, and a DPF (diesel particulate filter). Under such conditions the author could determine the actual vehicle emissions. The tests were performed on a road portion of a fifty kilometres or so - these tests provide information on the on-road emissions and are a basis for their ecological evaluation. For the measurement of the exhaust emissions the authors used a portable exhaust emissions analyzer SEMTECH DS by Sensors Inc. The analyzer measured the concentration of the exhaust components at the same time measuring the exhaust mass flow. The measurements of the particulate matter (mass) were done with the use of particle analyzer by AVL. The obtained data were used to calculate the relations that characterize the influence of the dynamic engine parameters on the exhaust emissions. These properties were taken into account indirectly using the whole range of speeds and accelerations of the vehicle (engine speeds and loads of the engine) for the preparation of the matrices of the emissions rate. The used data were averaged within individual speed and acceleration ranges thus obtaining the characteristics of the share of operation in individual ranges and the characteristics of the emission matrices of the individual emission components. The above results served for defining of the emission level indicator of the vehicles that can be used for classification of vehicle fleet in terms of their emission level.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Budowa stanowiska do generowania i analizy spalin z wysokoprężnego silnika Diesla
Diesel exhaust fumes generation and analysis : a new measurement setup
Autorzy:: Penconek, A.
Moskal, A.
Tematy:: biopaliwa
olej napędowy
diesel
spaliny
biodiesel fuels
diesel oil
exhaust fumes; Pokaż więcej
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Powiązania:: https://bibliotekanauki.pl/articles/2071043.pdf Link otwiera się w nowym oknie
Opis:: Budowane stanowisko do generowania i analizy spalin umożliwia porównanie zanieczyszczeń powstających w czasie pracy silnika na oleju napędowym, biopaliwie czy nawet zwykłym oleju roślinnym. Uzyskane wyniki wskazują na znaczący wpływ warunków w jakich pracuje silnik na skład frakcji gazowej spalin, ze znaczącą różnicą w emisji CO dla zimnego i ciepłego silnika. Jednocześnie budowane stanowisko posłuży w przyszłości do badania wpływu spalin z silnika Diesla na drogi oddechowe człowieka.
Exhaust fumes from biodiesel fuel, diesel oil or even vegetable oil can be generated, analyzed and compared using a newly built measurement setup. Emissions were strongly dependent on working engine parameters, especially temperature played here an important role. The main difference was manifested in carbon monoxide concentration. Simultaneously, the new setup might be used in future to study the impact of Diesel exhaust on human airways.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Oxide Cr-Fe-Mn-Ti-Ni catalyst, on metallic support, for NO and soot removal from diesel engines exhausts.
Tlenkowy katalizator Cr-Fe-Mn-Ti-Ni na nośniku metalicznym do usuwania NO i cząstek węglowych z gazów spalinowych silników Diesla.
Autorzy:: Wilkosz, Tomasz
Opis:: Problemu równoczesnego usuwania NOx i sadzy z gazów wydechowych silników Diesla nie został jeszcze w pełni rozwiązany. W obecnych systemach do utleniania cząstek węglowych wykorzystuje się NO2 wytwarzany na drodze katalitycznego utleniania NO. Powszechnie uważa się, że aktywność katalizatorów w utlenianiu cząstek jest proporcjonalna do ich aktywności w utlenianiu NO do NO2. W związku z tym prowadzone są liczne badania aktywności tlenkowych katalizatorów w utlenianiu NO, również w prezentowanej pracy magisterskiej. Nowością w pracy jest użycie faz tlenkowych powstałych na drodze bezpośredniego utlenienia folii ze stali kwasoodpornej, która może być wykorzystana do produkcji monolitów metalicznych do usuwania NO i sadzy z gazów wydechowych silników Diesla.Charakterystyka fizykochemiczna warstw tlenkowych utworzonych w czasie utleniania foli w powietrzu, w 600°C obejmuje: morfologię powierzchni (SEM), skład fazowy (XRD i spektroskopia Ramana) i skład powierzchniowych nanowarstw (XPS).Stwierdzono obecność faz spinelowych oraz pojedynczych tlenków Fe, Cr, Mn, Ti, Al i Ni w powierzchniowych nanowarstwach. Powierzchniowy skład fazowy warstwy tlenkowej zdeterminowały segregacje: Mn w obrębie fazy metalicznej i Cr, Ti i Al w warstwie tlenkowej.Testy katalitycznej aktywności w utlenianiu NO do NO2 wskazały powolny wzrost wydajności NO2, aż do temp. 150°C i szybki spadek powyżej niej.
There is not a final solution of simultaneous removal of NOx and soot from Diesel engines exhausts. In the present systems NO2 - formed by catalytic NO oxidation - is thought to be used for carbon particles oxidation. The activity of the oxide catalysts in carbon particles oxidation is commonly considered to be proportional to their activity in NO to NO2 oxidation. Therefore, many investigations are performed to determined the catalyst activity in the NO to NO2 oxidation. This is also the subject of a presented master dissertation. A novelty of this paper is formation of the oxides catalyst by a direct oxidation of a acid proof steel foil. Such a foil may be used for metallic monolith production used in the NO and soot removal from Diesel engines exhausts.Physicochemical characterisation of the oxide layers formed during foil oxidation at 600°C concerns: surface morphology (SEM), phase composition (XRD and Raman Spectroscopy) and phase composition of the surface nanolayers (XPS).Spinel phases and single oxides of Fe, Cr, Mn, Ti, Al and Ni were found in the surface nanolayers. The observed surface phase composition was ascribe to segregation of: Mn in metallic phases and Cr, Ti and Al in oxide phases.Catalytic activity test in NO to NO2 oxidation revealed slow increase of NO2 yield up to 150°C and its rapid drop above that temperature.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

Inne

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Skocz do pozycji: 10.

Tytuł:: Diesel hydrocarbons biodegradation by Myroide odoratimimus
Autorzy:: Divya, U. K.
Saranya, A.
Suganthi, R.
Tematy:: Biodegradation
Diesel
Diesel hydrocarbon
GC-MS analysis
Myroide odoratimimus
Soil; Pokaż więcej
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Powiązania:: https://bibliotekanauki.pl/articles/1109628.pdf Link otwiera się w nowym oknie
Opis:: Biodegradation can be a possible and effective retort to soil contamination by petroleum hydrocarbons. Nowadays there are many cases of accidental releases of petroleum products into the environment. Use of biological agents especially microorganism is effective in degradation of complex organic contaminants to other simpler organic compounds. In our present study role of Myroide odoratimimus in degrading the diesel components present in soil to simpler units were checked. The study demonstrates that Myroides odoratimimus (SKS 05) showed the ability to degrade diesel after 40 days of incubation in the diesel adsorbed soil with a growth rate of 6.2×106 CFU/ml and from the GC study Myroides odoratimimus degraded the component Dotriacontane (25.471), Hexatriacontane (27.98), Tetracosane (30.296), Pentatriacontane (32.42), Tetrapentacontane (34.39) present in the diesel adsorbed soil, which was confirmed by the reduction in the peak height and the peak area in comparison to the control {without Myroides odoratimimus (SKS 05).
Dostawca treści:: Biblioteka Nauki

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