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Archivum Combustionis
EN Numerical simulations of single fuel droplet combustion have been carried out using transient finite difference method with finite rate chemistry and variable transport properties under the assumptions of spherical symmetry. The present predicted burning rate matches well with experimental data in t[...]
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Prace Naukowe Politechniki Warszawskiej. Konferencje
2007 T. 1, z. 25 185-192
PL Diagnostyka procesów spalania jest obszerną dziedziną nauki, w której obserwuje się stały i szybki postęp. Mimo istnienia wielu systemów diagnostycznych ciągle poszukuje się nowych, doskonalszych metod. Podstawowym celami tych metod są: poprawa efe[...]
EN Traditionalły, combustion processes have been monitored by optical means, using such techniques as Schlieren, shadow, interferometric, holographic and LIF. For flame visualization, high quality optical access to the area of interest is required and combustion laboratories round the world have shown [...]
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Prace Naukowe Instytutu Górnictwa Politechniki Wrocławskiej. Konferencje
EN Diagnosis of the combustion process of a C.I. engine can base an indirect set of diagnostic parameters of cylinder pressure p=f(?) that is the indicator diagram. It allows to determine such derivatives of the combustion process as: rate of pressure rise (giving evidence of engine 'hard' work), maxim[...]
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Journal of KONES
EN This paper presents and discusses selected research results of the diesel engine fuelled with blends of: diesel oil (DO), synthetic ethanol (ET) as oxygenated additive and small quantity of fatty acid methyl esters (FAME) used as emulsifier. Content of ethanol in diesel oil was changed in wide range[...]
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Archivum Combustionis
2010 Vol. 30 nr 4 399-408
EN Polymers are used to produce plastics and nowadays there are lots of everyday usage products made from polymers. Consequently there are lots of waste polymers in municipal solid waste as well. Combustion of waste polymers is a very practical method for the total disposal of them from the environment[...]
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Archivum Combustionis
2010 Vol. 30 nr 4 377-397
EN Process of gasoline mixture combustion in two-stroke engines is much more complicated than in four stroke engines. In order to decrease fuel consumption and exhaust gas emission, particularly hydrocarbons, two-stroke engines should have direct fuel injection systems. The paper presents results of bo[...]
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Archivum Combustionis
2010 Vol. 30 nr 4 409-426
EN At the beginning of the paper the still unsolved problem of municipal sewage sludge disposal is discussed while in the following pages the possibility of satisfactory solution of the problem of utilization of increasing amount of the sludge by thermal methods is presented. The statistical data show [...]
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Archivum Combustionis
2010 Vol. 30 nr 4 327-335
EN Replacing classical fuels by fuels based on waste brings the positive effect of CO2 reduction and the sparing of fossil fuels used, which is the basis of sustainable development.  The safe combustion of various types of waste in the incineration installations needs defining some indicators that can [...]
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Journal of Polish CIMAC
EN The paper presents a concept of improving the injection and spraying processes with the use of the oxygen dissolved in the diesel fuel and the results of experimental investigations carried out in order to verify it. The combustion process of the direct injection compression-ignition engine being no[...]
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Ochrona Powietrza i Problemy Odpadów
PL Na świecie obserwuje się rosnące zapotrzebowanie na węgiel. Polska znajduje się na ósmej pozycji wśród największych światowych producentów tego paliwa. Węgiel kamienny zawiera domieszki śladowych ilości toksycznych pierwiastków, wśród których jednym z najniebezpieczniejszych dla zdrowia i życia czło[...]
EN The demand for coal increases worldwide. Poland is ranked eight as a world coal producer. Hard coal contains trace quantities of toxic elements of which mercury is one of the most hazardous to human health and life. The paper presents the forms of mercury occurrence in coal as well as a compares its[...]
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Ochrona Powietrza i Problemy Odpadów
PL W pracy dokonano przeglądu doświadczeń nad stosowaniem modyfikatorów w procesach spalania paliw stałych. Omówiono wpływ modyfikatorów na techniczne i ekologiczne aspekty procesu spalania. Opisano problemy towarzyszące procesom spalania oraz dokonano charakterystyki stosowanych dodatków do paliw.
EN The paper presents a review of experiences on the application of modifiers in combustion processes of solid fuels. The impact of modifiers addition on the technical and ecological aspects of combustion processes is described. The problems accompanying combustion processes are described alongside wit[...]
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Ochrona Powietrza i Problemy Odpadów
PL W pracy dokonano przeglądu doświadczeń nad zastosowaniem modyfikatora Ekopure w procesie spalania pyłu węgla brunatnego. Stwierdzono, że zastosowanie modyfikatora spowodowało poprawę sprawności kotła, obniżenie spadku ciśnienia na pęczkach konwekcyjnych kotła, wzrost średniego spadku temperatur na p[...]
EN The paper presents a review of experiments on the application of EKOPURE modifier in combustion processes of coal dust is presented. It was stated that the application of the modifier resulted in an improved boiler efficiency, an increased drop of the mean temperature in the heat exchangers and incr[...]
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Bulletin of the Polish Academy of Sciences. Earth Sciences
EN This article contains a presentation of a mathematical model of the mine fire, which takes into account the consumption of oxygen in the coal combustion process. The adopted mathematical model of the mine fire, given in cylindrical coordinates, enables calculation of the temperature of the mine fire[...]
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Geology, Geophysics and Environment
EN Fly-ash produced during combustion processes is usually considered to be hazardous waste. Therefore, its effective treatment is necessary. Stabilization of hazardous waste by solidification is one of the effective methods of immobilization of pollutants. A solid structure resistant to leaching is cr[...]
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Problemy Techniki Uzbrojenia
2007 R. 36, z. 103 129--136
PL Przedstawiono wyniki badań homogenicznego stałego paliwa rakietowego składającego się z nitrocelulozy, nitrogliceryny i dodatków modyfikujących szybkość spalania. Zastosowanie dodatków modyfikujących proces spalenia, pozwoliło uzyskać paliwo o właściwych charakterystykach i parametrach eksploatacyjn[...]
EN The results are presented in the paper over the testing of a homogeneous rocket solid propellant consisting of nitro-cellulose, nitro-glycerine and other components for modifying the rate of burning. The addition of components modifying the rate of burning resulted in receiving a propellant with des[...]
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Journal of Ecological Engineering
2017 Vol. 18, nr 1 273--283
EN The paper discusses some practical problems conected with introdction of modern coal combustion technologies as well as biomass co-combustion. In order to ensure that the combustion process runs in a proper way, the multichannel fiber optic monitoring system was applied. The system converts the opti[...]
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Journal of KONES
2016 Vol. 23, No. 2 415--422
EN The struggle against global warming necessitates the search for new sources of energy, which limit the emission of carbon dioxide into the atmosphere. Among various fuels used to supply energy nowadays, the importance of natural gas is constantly growing. This is caused by the fact that this fuel is[...]
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Journal of KONES
EN The addition of alcohol to conventional hydrocarbon fuels for a spark-ignition engine can increase the fuel octane rating and the power for a given engine displacement and compression ratio. In this work, the influence of butanol addition to gasoline in a port fuel-injection, spark ignition engine w[...]
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Archive of Mechanical Engineering
PL W artykule przedstawiono oryginalne rozwiązanie konstrukcyjne maszyny pojedynczego sprzężu przeznaczonej do badań procesów spalania. Zasada działania maszyny jest konwencjonalna, natomiast do jej napędu wykorzystano bezwładność koła zamachowego, którego energia umożliwia szybkie przyspieszenie mecha[...]
EN The paper presents the original design of the single compression machine for combustion study. The pronciple of operation is based on old concept, utilizing the inertia energy of a flywheel to accelerate the crank mechanism and the attached piston to compress rapidly the combustible mixture in the c[...]
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Journal of KONES
EN The microemulsion is the emulsion with dimension of molecules approx. micrometre and smaller. Such microemulsion of water and diesel oil creates new quality and lets on obtainment ecological and economic of effects, as well as eliminates the disadvantageous influence common emulsions, or unprofitabl[...]
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