Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "combustion rate" wg kryterium: Temat

  Lista filtrów
Wyrównaj
Wyświetlanie 1-15 z 18
Tytuł:
Experimental investigations of various modes of charging on HCCI engine
Autorzy:
Prasad, A. Renuka
Bhandari, Rakesh
Jagadish, Donepudi
Powiązania:
https://bibliotekanauki.pl/articles/245191.pdf
Data publikacji:
2019
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
HCCI technology
homogeneous mixture
thermal efficiency
combustion rate
emissions
Opis:
Homogeneous Charged Compression Ignition technology is most favourable or suitable for Internal Combustion engines for reducing the exhaust emissions and enhances the Thermal efficiency, improve the fuel consumption, and increase the rate of combustion. This article represents the various charging methods on HCCI technology engine; it improves the engine performance and determines the emission characteristics of HCCI technology engine. The homogeneous mixture prepared with different methods. In –cylinder internal homogeneous mixture preparation method applied in this present work. It reduces the exhaust emissions released from the combustion chamber. However, oxides of nitrogen and soot emissions are significantly reduce, because combustion starts at lower temperatures and various points in combustion chamber. The HCCI technology generates small amount of exhaust emissions and it improves the performance of the engine. In addition, performance and released emissions depends on the quality and quantity of homogeneous mixture.
Źródło:
Journal of KONES; 2019, 26, 1; 119-126
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Studies of the Influence of Nano Iron(III) Oxide on Selected Properties of Solid Heterogeneous Propellants Based on HTPB
Autorzy:
Bogusz, R.
Magnuszewska, P.
Florczak, B.
Maranda, A.
Drożdżewska, K.
Powiązania:
https://bibliotekanauki.pl/articles/358189.pdf
Data publikacji:
2016
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
combustion rate modifier
nano iron(III) oxide
solid heterogeneous rocket propellant
HTPB
LRM
Opis:
This paper presents the results of investigations into the use of 56 nm nano iron(III) oxide as a combustion rate modifier in a solid heterogeneous rocket propellant (SHRP). A series of solid heterogeneous rocket propellants based on HTPB and ammonium perchlorate with different nano iron(III) oxide contents in the propellant composition were prepared and investigated. The ballistic parameters of the examined propellants were determined by combustion in a laboratory rocket motor (LRM). The ballistic properties were evaluated in the pressure range 5-10 MPa. It was found that the linear burning rate at 7 MPa was increased by 15% for 1% nano iron(III) oxide content in comparison to 0.2% content. Determination of the sensitivity to friction and impact, the calorific value, hardness and decomposition temperature of the derived propellants were also investigated.
Źródło:
Central European Journal of Energetic Materials; 2016, 13, 4; 1051-1063
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Knock and combustion rate interaction in a hydrogen fuelled combustion engine
Autorzy:
Szwaja, S.
Powiązania:
https://bibliotekanauki.pl/articles/245975.pdf
Data publikacji:
2011
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
combustion knock
heat release rate
hydrogen
engine
Opis:
The paper describes correlation between combustion knock intensity and combustion rate calculated as the heat release rate from combustion pressure traces of a hydrogen fuelled spark ignited engine. Unlike a gasoline spark ignited (SI) engine, the hydrogen fuelled engine can easily generate knock during combustion at working conditions similar to a gasoline engine. However, the hydrogen knock does not necessarily come from hydrogen auto-ignition at the end phase of spark-controlled combustion process as it is typical at the gasoline fuelled engine. The phenomenon of hydrogen knock significantly differs from the gasoline knock due to different combustion mechanisms and different fuel thermo-chemical properties. The knock can be generated during hydrogen combustion itself as result of combustion instabilities. Intensity of this knock, expressed here by intensity of combustion pressure fluctuations, is several times lower in comparison with the combustion knock by fuel self-ignition process. This "light knock" is a matter of this paper. The tests of hydrogen combustion in the IC engine has been conducted at air to hydrogen stoichiometric ratio at various compression ratios with spark timing sweep from -10 to 4 crank angle degrees referring to top dead centre of the engine piston. Obtained results show, that there is a positive correlation between the knock intensity and the combustion rate. This correlation is particularly observed at tests taken on the engine with compression ratio of 10. The conclusions should provide good premises for combustion knock modelling and its prediction.
Źródło:
Journal of KONES; 2011, 18, 3; 431-438
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermodynamic analysis of combustion events in the natural gas fuelled SI engine with VVT
Autorzy:
Szwaja, M.
Mazuro, P.
Szwaja, S.
Powiązania:
https://bibliotekanauki.pl/articles/242837.pdf
Data publikacji:
2018
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
internal combustion engine
variable valve timing
heat release rate
IMEP
combustion phases
Opis:
The main aim of the research was to investigate influence of overlap of the natural gas fuelled spark ignited engine on the following parameters: Indicated Mean Effective Pressure (IMEP), heat rate release including combustion phases (ignition lag, main combustion phase). The content of the study includes results from processing in-cylinder pressure measurements, heat release rate analysis, combustion phases, and finally the conclusions. The tests were carried out on the test bed including the single cylinder research engine with a displacement volume of 550 cm3. The engine was equipped with independent cam phasors for both intake and exhaust valves, but for this investigation, the exhaust valve timing was fixed (the exhaust cam centre line was fixed at -95 crank angle (CA) deg before Top Dead Centre) and intake valve timing was changed (the intake cam centre line was varied from 90 to 150 CA deg after Top Dead Centre). The overlap was changed in the range from 85 to 25 CA deg. 8 tests series were performed, each singular series consisted of 300 consecutive engine combustion cycles. As observed, by varying the valve overlap it contributes to significant change in the peak combustion pressure, peak of heat release rate, and combustion phases. Summing up, variable valve timing affects compression and expansion strokes by changing polytropic indexes due to various amounts of exhaust residuals trapped in the cylinder. It affects not only engine volumetric efficiency but also the heat release rate and IMEP, so it does engine performance. Thus, variable valve timing can be considered as valuable tool that can be applied to the natural gas fuelled internal combustion engine.
Źródło:
Journal of KONES; 2018, 25, 4; 421-427
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of Ion Current Measurement to Identification of Combustion Parameters in a Homogeneous Charge Compression Ignition Engine
Autorzy:
Hunicz, J.
Filipek, P.
Sobiesiak, A.
Powiązania:
https://bibliotekanauki.pl/articles/221670.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
HCCI
ion current
heat release rate
combustion control
Opis:
This study examines the application of ion current measurements to the identification of heat release parameters inside the combustion chamber of a homogeneous charge compression ignition (HCCI) engine fuelled with gasoline. HCCI combustion was achieved with the use of exhaust gas trapping. Combustion parameters derived from the in-cylinder pressure and ion current measurements were compared and analysed. Ion current measurements were accomplished using the existing spark plug and a dedicated electronic circuit. The experiments were performed at a variable excess air ratio and a variable amount of trapped residuals. The results showed a good correlation between peak values of the ion current and heat release rate, except for the cases where a fuel-rich mixture was burnt. The computed ion current integral over the volume of the combustion chamber showed a good agreement with the heat released in the combustion chamber, however this parameter was found to be affected by the amount of trapped residuals. Combustion timing characteristic values computed using heat release and ion current were found to be correlated, however the relationship was not linear.
Źródło:
Metrology and Measurement Systems; 2018, 25, 1; 223-234
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Combustion Mechanism and Kinetics of Thermal Decomposition of Ammonium Chlorate and Nitrite
Autorzy:
Sinditskii, V. P.
Egorshev, V. Yu.
Powiązania:
https://bibliotekanauki.pl/articles/357948.pdf
Data publikacji:
2010
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
ammonium chlorate
ammonium nitrite
combustion mechanism
decomposition
rate constant
Opis:
Combustion data of ammonium chlorate and nitrite have been analyzed. The leading reactions of combustion of both NH4ClO3 and NH4NO2 at low pressures have been shown to proceed in the condensed phase, with the burning rate defned by the decomposition kinetics at the surface temperature. The kinetics of NH4ClO3 and NH4NO2 decomposition have been calculated by using a condensed-phase combustion model.
Źródło:
Central European Journal of Energetic Materials; 2010, 7, 1; 61-75
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Simplified calculation of combustion progress in the IC engine
Uproszczona metoda obliczania postepu spalania w silniku o spalaniu wewnetrznym
Autorzy:
Szwaja, S.
Powiązania:
https://bibliotekanauki.pl/articles/792330.pdf
Data publikacji:
2011
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
combustion engine
heat release rate
mass fraction burnst
energy conservation law
crank angle
internal combustion engine
equation
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2011, 11
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Unravelling the Effect of Anthraquinone Metal Salts as Wide-range Plateau Catalysts to Enhance the Combustion Properties of Solid Propellants
Autorzy:
Wang, Y.
Yan, Q.-L.
An, T.
Chen, B.
Ji, Y.-P.
Wang, W.
Zhao, F.
Powiązania:
https://bibliotekanauki.pl/articles/358042.pdf
Data publikacji:
2018
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
solid propellants
burning rate catalysts
anthraquinone metal salts
wide-range plateau combustion
Opis:
Novel lead and copper salts based on anthraquinone, including 1,8-dihydroxyanthraquinone,1,4,5,8-tetrahydroxyanthraquinone and 1,8-dihydroxy-4,5-dinitroanthraquinone, were prepared and characterized by Fourier transform infrared spectroscopy (FTIR), elemental analysis (EA), and X-ray fluorescence (XRF). The catalytic effects of these compounds on the decomposition of nitrocellulose (NC) and on the combustion properties of double-base (DB) and composite modified double-base (CMDB) propellants were comprehensively investigated. The results demonstrated that the burning rate is significantly increased (by 200%) in the lower pressure range (2-6 MPa) as compared to the control systems without added anthraquinone-based salts. Concurrently, the pressure exponents (n) were obviously lower, exhibiting a “wide-range plateau” combustion phenomenon in the middle-pressure region. Specifically, for the DB propellants such a plateau region extended from 10 MPa to 16 MPa for n equal to 0.10, from 10 MPa to 18 MPa for n equal to 0.11 and from 8 MPa to 18 MPa when n is 0.05. In the case of RDX-CMDB propellants, the plateau was found to be in the range 6-18 MPa, with n in the range 0.16-0.27, depending on the type of catalyst, in contrast to the reference CMDB sample, which was characterized by n equal to 0.7 for the same pressure range.
Źródło:
Central European Journal of Energetic Materials; 2018, 15, 2; 376-390
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis and Characterization of a High Energy Combustion Agent (BHN) and Its Effects on the Combustion Properties of Fuel Rich Solid Rocket Propellants
Autorzy:
Pang, W.-Q.
Zhao, F.-Q.
Xue, Y.-N.
Xu, H.-X.
Fan, X.-Z.
Xie, W.-X.
Zhang, W.
Lv, J.
Deluca, L. T.
Powiązania:
https://bibliotekanauki.pl/articles/358474.pdf
Data publikacji:
2015
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
fuel rich solid propellant
BHN
DSC
TG-DTG
burning rate
combustion properties
Opis:
A high energy combustion agent (tetraethylammonium decahydrodecaborate, BHN) was prepared by means of an ion exchange reaction (IER), and the prepared samples were characterized by the advanced diagnostic techniques of Scanning Electron Microscopy (SEM), X-ray diffraction (XRD), Thermogravimetric Analysis (TGA), and Differential Scanning Calorimetry (DSC) etc. The effects of BHN particles on the hazard and combustion properties of fuel rich solid propellants were investigated. The results showed that the BHN samples and fuel rich propellants containing BHN particles can be prepared successfully and solidified safely. The peak temperature of thermal decomposition and the heat of decomposition of the BHN samples prepared were 305.8 °C and 210.9 J•g-1 at a heating rate of 10 K•min-1, respectively. The burning rate and pressure exponent of fuel rich solid propellants decreases with increases in the fraction of BHN particles in the propellant formulation. Compared with the reference formulation (sample BP-1), the burning rate of the propellant with 10% mass fraction of BHN particles (sample BP-4) had decreased 30% at 3.0 MPa, and the pressure exponent had dropped from 0.44 to 0.41.
Źródło:
Central European Journal of Energetic Materials; 2015, 12, 3; 537-552
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Certain Ballistic Performance and Thermal Properties Evaluation for Extruded Modified Double-base Propellants
Autorzy:
Fahd, A.
Mostafa, H. E.
Elbasuney, S.
Powiązania:
https://bibliotekanauki.pl/articles/358144.pdf
Data publikacji:
2017
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
solid propellant
modified double-base propellant
combustion
burning rate
ballistic performance
thermal properties
Opis:
The main advantages of modified double-base (MDB) propellants are wide range of burning rates, high energy output, as well as enhanced thrust. This study reports on the effect of potential oxidizers − potassium perchlorate (KP) or ammonium perchlorate (AP), stoichiometric binary mixture of the oxidizer (KP or AP) with metal fuel (Al), and energetic nitramine (HMX) on combustion characteristics of MDB propellants. MDB propellant formulations based on these additives, constituting 10 wt.% of total mass of the MDB formulation, were manufactured by solventless extrusion process. The impact of these additives on ballistic performance particularly the burning rate as well as on the characteristic exhaust velocity of gaseous product (C*), was evaluated using small-scale ballistic evaluation test motor. KP and AP exhibit different effects; KP positively impacts the burning rate, AP positively impacts C*. Stoichiometric binary mixture of AP/Al positively impacts both the burning rate and C*; HMX substantially enhances C*. These energetic additives could alter the combustion mechanism, by thinning the induction zone, allowing the luminous flame zone to be more adjacent to the burning surface. Therefore, the combustion reaction could proceed faster. The developed MDB propellant formulations were found to be more energetic with an increase in calorific value in comparison to reference formulation (using bomb calorimeter); they exhibited similar ignition temperature by means of cook off test. DSC measurements demonstrated similar onset and maximum decomposition temperature of developed MDB propellant formulations to reference DB propellant formulation but with an increase in total heat released (J/g).
Źródło:
Central European Journal of Energetic Materials; 2017, 14, 3; 621-635
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Novel, Non-invasive Method for the Detection of Combustion Zone Propagation in Solid High Energy Materials by Means of Thermocouples and Pyrolytic Graphite
Autorzy:
Miszczak, M.
Świderski, W.
Panas, A. J.
Powiązania:
https://bibliotekanauki.pl/articles/358649.pdf
Data publikacji:
2014
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
solid high energy materials
combustion zone propagation
average burning rate
thermocouples
pyrolytic graphite (pyrographite)
Opis:
This work presents a new, non-invasive method for the discrete detection of combustion zone propagation in high energy materials – pyrotechnic compositions – by means of thermocouples bonded to the external, side surface of a pyrolytic graphite (pyrographite) tube filled with the pyrotechnic composition and ignited at the one end by a CO2 laser. The thermocouples were positioned in a line parallel to the longitudinal axis of the pyrographite tube, which was used as a directional heat guide (thermal management) and a thermoresistant structure, enabling detection of the propagation of the combustion zone as a heat zone generated by the combustion, traveling on the outside surface of the pyrographite tube along its axis. Such a directional heat guidance was caused by the unique thermal conductivity anisotropy of pyrographite resulting in low thermal conductivity of the pyrographite tube along its axis and high thermal conductivity across the tube radius. The thermocouples detected passages of the outside heat zone that were equally time delayed in relation to the combustion zone inside the tube. Dividing the distance between the thermocouples by the time between their thermoelectric response to the same (corresponding) isotherm of the heat zone, gave the average burning rate of the high energy composition being tested over the distance between the thermocouples. The proposed procedure for burning rate determination was verified by numerical simulations.
Źródło:
Central European Journal of Energetic Materials; 2014, 11, 3; 417-431
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Termite pyrotechnic compositions of iron and alkaline earth metals peroxides
Pirotechniczne mieszaniny termitowe żelaza z nadtlenkami berylowców
Autorzy:
Wojewódka, Andrzej
Gerlich, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/1071697.pdf
Data publikacji:
2020
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
time delay composition
detonator
gasless combustion
burn rate
mieszanina opóźniająca
zapalnik
spalanie bezgazowe
prędkość spalania
Opis:
Poniższy artykuł przedstawia badania procesu spalania mieszaniny żelaza z nadtlenkami berylowców. Obejmuje on przegląd literatury, jak również wyniki badań własnych, których celem jest określenie możliwości zastosowania w układach opóźniających mieszanin opartych na żelazie. Artykuł skupia swoją uwagę na określeniu prędkości propagacji frontu spalania mieszaniny w funkcji ciśnienia zaprasowania, zadanego w trakcie procesu elaboracji, zawartości żelaza oraz czystości wykorzystanych utleniaczy. Analiza DSC, TG oraz XRD potwierdziła, iż reakcje pomiędzy komponentami mieszaniny zachodzą głównie na granicy faz (ciało stałe)-(ciało stałe).
Źródło:
Materiały Wysokoenergetyczne; 2020, 12, 2; 55-72
2083-0165
Pojawia się w:
Materiały Wysokoenergetyczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study of the Thermal Decomposition and Combustion of Guanidinium 5,5’-Azotetrazole Salt
Autorzy:
Sinditskii, V. P.
Levshenkov, A. I.
Levshenkova, L. E.
Powiązania:
https://bibliotekanauki.pl/articles/358742.pdf
Data publikacji:
2013
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
salt of 5,5’-azotetrazole with guanidine
burning rate
temperature profiles
thermal decomposition
combustion mechanism
Opis:
The thermal decomposition and combustion of guanidinium 5,5’-azotetrazole salt (Gu2AzT) have been investigated. Temperature profiles in the Gu2AzT combustion wave were measured using thin tungsten-rhenium micro thermocouples. It was shown that combustion of the salt obeys the condensedphase mechanism. The high burning rate of Gu2AzT is connected with the high decomposition rate in the melt. The kinetic parameters of the controlling chemical reaction have been estimated, and a detailed combustion mechanism for Gu2AzT has been proposed.
Źródło:
Central European Journal of Energetic Materials; 2013, 10, 4; 529-539
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fast heat release analysis for spark ignition engine
Szybka analiza procesu wydzielania ciepła w tłokowym silniku spalinowym o zapłonie iskrowym
Autorzy:
Mendera, K. Z.
Smereka, M.
Powiązania:
https://bibliotekanauki.pl/articles/245384.pdf
Data publikacji:
2009
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
silnik spalinowy
szybkość wydzielania ciepła
internal combustion engine
heat release rate
mass fraction burned analysis
Opis:
The development of the automotive engine is increasingly challenged by emission legislation and by the end-users' fuel economy demands. it requires new technologies as well as new ways to optimise and analyse engine processes. The best possible knowledge needed for the modeling and controlling an internal combustion engine may be received as a result of the thermodynamic analysis. such an analysis requires acquisition of the data on the in-cylinder pressure and volume, Thermodynamic properties (chemical composition), heat transfer and gas flows (crevice flows, blow-by effect) and therefore is sophisticated and labour-consuming. that is why it would be desirable to use comparable (in the fmal effect and precision) methods of heat release analysis, which would be faster and less demanding. a burn rate analysis applied to calculate mass fraction burned (MFB) is one of the solutions. This paper presents the results of the comparative analysis ofvarious heat release algorithms and recommends fast mfb method that is comparable with the sophisticated thermodynamic analysis — it offers the accuracy of the estimation of 50% mass fraction burn duration not worse than 0.5 crank angle degree.
Rozwój układów napędowych pojazdów w coraz większym stopniu uwarunkowany jest wymaganiami ochrony środowiska i minimalizacji zużycia paliwa. wymaga to nowych technologii w dziedzinie sterowania tłokowym silnikiem spalinowym. Dokładny obraz zjawisk zachodzących w komorze spalania otrzymać można w wyniku analizy termodynamicznej, która wymaga obok znajomości ciśnienia, będącego efektem procesu spalania i zmian objętości przestrzeni roboczej, także wiedzy o zmianach właściwości termofizycznych czynnika (zmiana składu chemicznego), wymiany ciepła oraz przepływów masy czynnika (efekt szczelinowy i przedmuchy), co czyni taką analizę skomplikowaną i pracochłonną. Pożądane byłoby więc opracowanie metody o porównywalnej dokładności, ale znacząco szybszej, nie wymagającej znajomości tak dużej liczby parametrów wejściowych. W opracowaniu tym skupiono się na porównaniu wyników uzyskiwanych poprzez zastosowanie różnych algorytmów i zaproponowano metodę, która w oparciu o minimalną liczbę danych, zapewnia zgodność położenia 50% ciepła wydzielonego z wynikami analizy termodynamicznej na poziomie nie gorszym niż plus minus 0,5° OWK.
Źródło:
Journal of KONES; 2009, 16, 4; 323-332
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ symetrycznego podziału dawki inicjującej ON na wybrane parametry termodynamiczne czynnika roboczego oraz wskaźniki pracy silnika dwupaliwowego zasilanego CNG
Impact of symmetrical division of initial dosage diesel oil on the selected thermodynamic parameters of the working medium and operation parameters dual fuel engine fuelled CNG
Autorzy:
Gilowski, T.
Stelmasiak, Z.
Powiązania:
https://bibliotekanauki.pl/articles/133761.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
zasilanie dwupaliwowe
gaz ziemny
dawka dzielona
szybkość wydzielania ciepła
spalanie
dual fuelling
natural gas
divided dose
heat release rate
combustion
Opis:
W pracy przedstawiono wpływ podziału i wielkości dawki inicjującej na wybrane parametry pracy silnika dwupaliwowego zasilanego CNG. Podstawowym celem pracy było wskazanie jak sposób podziału dawki inicjującej wpływa na przebieg procesu spalania, parametry ekonomiczne i ekologiczne silnika oraz określenie możliwości optymalnego doboru sterowania wtryskiem dawki oleju napędowego. Badania pokazały korzystny wpływ podziału dawki (na dwie i trzy pojedyncze dawki) na parametry silnika. Obserwowano wzrost sprawności ogólnej silnika, zmniejszenie stężenia NOx, ciśnień maksymalnych, szybkości narastania ciśnienia, szybkości wydzielania ciepła i temperatur czynnika. Wskazano na możliwości istotnej redukcji emisji NOx przez podział dawki i wydłużanie opóźnienia wtrysku dawek dodatkowych.
The paper shows the impact of division and quantity pilot dose on selected operation parameters dual fuel engine fuelled CNG. The primary objective of this study was identify why the means of pilot dose division affect on the combustion process, economic and environmental performance of the engine and determine feasibility of optimal control of diesel injection dose. Studies have shown a beneficial effect dose distribution (for two and three single dose) on the engine parameters. Observed increase the overall efficiency of the engine, reducing NOx concentration, maximum pressure, rate of pressure rise, the heat release rate and temperature of medium. Pointed to the possibility of a significant reduction of NOx emissions by splitting the dose and longer delay the injection of additional doses.
Źródło:
Combustion Engines; 2013, 52, 3; 879-886
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 18

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies