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Modelling of the gas combustion process

References Williams, F. A. (1985) Combustion Theory. The Benjamin Cummings Publishing Company, Inc., Menelo Park, California, USA. PN-EN 13673-2:2005. Determination of the maximum explosion pressure and the maximum rate of pressure rise of gases and vapours - Part 2: Determination of the maximum pressure rise. Andrews, G. E. & Bradley, D.(1972). Determination of burning velocities: A Critical Review, Comb. Flame , 18, 133 - 153. Bradley, D. & Mitcheson, A

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Torgas Condensate Combustion in the SI Engine

References [1] Ambrosewicz-Walacik, M., Walacik, M., Waste tires as a source of valuable chemicals , Journal of KONES Powertrain and Transport, Vol. 23, pp. 25-29, 2016. [2] Basu, D., Phulli, S., Kotebavi, V., Performance analysis of a VCR SI engine using petrol alcohol blends, Power and Energy Systems: Towards Sustainable Energy , Conference paper, 2014. [3] Chwist, M., Szwaja, S., Grab-Rrogalinski, K., Pyrc, M., Bio-oil blended butanol as a fuel to the spark ignition internal combustion reciprocating engine , Combustion Engines, 169(2), pp

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Computational Investigation of Compression Ratio and Bore Diameter Influence on Engine Performance and Knock Intensity

References [1] Carris, D., Nelson, E., A new look at High Compression Engines , SAE Technical Paper 590015, 195. [2] Douaud, A. M., Eyzat, P., Four-octane-number method for predicting the anti-knock behavior of fuels and engines , SAE Paper 780080, 1978. [3] Heywood, J. B., Internal Combustion Engines Fundamentals , McGraw-Hill, Inc., 1988. [4] Olczyk, A., Analiza możliwości zwiększania mocy tłokowych silników , Cieplne Maszyny Przepływowe, No. 141, Lodz 2012. [5] Ricardo WAVE 2015.2 Help System . [6] Stone, R

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The Heat of Combustion of Tobacco and Carbon Oxide Formation

. 4. Muramatsu, M.: Studies on transfer phenomena during the natural combustion of cigarettes; Sci. Papers Cent. Res. Inst. Japan Tobacco and Salt Monop. Corp. 123 (1981) 9K77. 5. Baker, R.R. and D.P. Robinson: Tobacco combustion K The last ten years; Rec. Adv. Tob. Sci. 16 (1990) 3K72. 6. Jenkins, R.W. Jr. and D.D. McRae: Fifty years of research on cigarette smoke formation and delivery at the Tobacco ChemistsN Research Conference; Rec. Adv. Tob. Sci. 22 (1996) 337K392. 7. Norman, A.B, R

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Aspects of using biomass as energy source for power generation

References Eurostat. (2016). Agricultural production - crops - Statistics Explained available at http://ec.europa.eu/eurostat/statistics-explained/index.php/Agricultural_production_-_crops – Last accessed 03.02.2017, 14:50. Agropower Energy. (na). Agro-Biomasa – http://www.agropower-energy.ro/index.php?page=agro-biomasa – Last Accessed 03.02.2017, 14:15. Badea, A. A., Cenuşă, V., & Ciobanu, M. C. (2013). Surse regenerabile de energie . AGIR. Basu, P. (2006). Combustion and gasification in fluidized beds . CRC press. Basu, P

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Structural optical and magnetic properties of transition metal doped ZnO magnetic nanoparticles synthesized by sol-gel auto-combustion method

Abstract

Transition metals, such as chromium (Cr) and manganese (Mn) doped zinc oxide (ZnO) magnetic nanoparticles, were synthesized via sole gel auto-combustion method. The prepared magnetic (Zn1−(x+y)MnxCryO, where x, y = 0, 0.02, 0.075) nanoparticles were calcined in an oven at 6000 °C for 2 hours. The morphologies of the nanoparticles were investigated using different techniques. X-ray diffraction (XRD) analysis revealed that the hexagonal wurtzite structure of the synthesized nanoparticles was unaffected by doping concentration. The crystallite size measured by Scherrer formula was in the range of 32 nm to 38 nm at different doping concentrations. Nanosized particles with well-defined boundaries were observed using a field emission scanning electron microscopy (FE-SEM). Fourier transform infrared (FT-IR) spectra showed a wide absorption band around 1589 cm−1 in all the samples, corresponding to the stretching vibration of zinc and oxygen Zn–O bond. A blue shift in optical band gaps from 3.20 eV for ZnO to 3.08 eV for Zn0.85Mn0.075Cr0.075O nanoparticles was observed in diffuse reflectance spectra, which was attributed to the sp-d exchange interactions. The field-dependent magnetization M-H loops were measured using vibrating sample magnetometer (VSM). The VSM results revealed diamagnetic behavior of the ZnO nanoparticles which changed into ferromagnetic, depending on the doping concentration and particle size. The compositions of Zn, Cr, Mn and O in the prepared samples were confirmed by using the energy dispersive X-ray spectroscopy (EDX). Our results provided an interesting route to improve magnetic properties of ZnO nanoparticles, which may get significant attention for the fabrication of magnetic semiconductors.

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Energy Properties of Sunflower Seed Husk as Industrial Extrusion Residue

). Energetic use of the tomato plant waste, Fuel Processing Technology, 89, 1193-1200. Gañán, J., Al-Kassir Abdulla, A., Cuerda Correa, E., Macias-Garcia, A. (2006). Energetic exploitation of vine shoot by gasification processes. A preliminary study. Fuel Processing Technology, 87, 891-897. Ghani, W., Alias, A., Savory, R., Cliffe, K. (2009). Co-combustion of agricultural residues with coal in a fluidised bed combustor, Waste Management, 29, 767-773. Golec T. (2004). Współspalanie biomasy w kotłach energetycznych. Energetyka, 7

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Use of Biofuels in a Compression-Ignition Engine – Comprehensive Technical and Economical Analysis

., Directive 2009/28/EC of the European Parliament and of the Council of 23 April 2009 on the promotion of the use of energy from renewable sources and amending and subsequently repealing Directives 2001/77/EC and 2003/30/EC , Official Journal of the European Union, 5, 2009. [21] Szabados, G., Bereczky, Á., Experimental investigation of physicochemical properties of diesel, biodiesel and TBK-biodiesel fuels and combustion and emission analysis in CI internal combustion engine , Renewable Energy, 2018, DOI:10.1016/j.renene.2018.01.048. [22] Magyar Szabványügyi

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Identification of service failures of cylinder valves of ship piston combustion engines

References Korczewski Z.: Endoscopic examination of naval gas turbines . Polish Maritime Research, No. 4/1998 Korczewski Z., Pojawa B.: Endoscopic diagnostics of ship engines (in Polish). 32nd Domestic Symposium "Diagnostics of Machines". Węgierska Górka, 28.02-05.03.2005 Korczewski Z., Pojawa B.: Diagnosing ship combustion engines by means of endoscopes (in Polish). 7th Scientific Technical Symposium "Combustion engines in military applications"- "SILWOJ'2005". Rynia, 26

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Internal Combustion Engine Powered by Synthesis Gas from Pyrolysed Plastics

REFERENCES [1] ARROYO J., MORENO F., MUNOZ M., MONNÉ C., BERNAL N.: Combustion behavior of a spark ignition engine fuelled with synthetic gases derived from biogas, Fuel , 2014, Volume 117 , pp. 50-58, [2] VERHELST, S., WALLNER, T.: Hydrogen-fuelled internal combustion engines, Progress in Energy and Combustion Science , 2009, Volume 35 , pp. 490-527 [3] POLÓNI M., KÁLMAN P., LACH J., SMIEŠKO Š., LAZAR L., KUNC P., JANČOŠEK Ľ.: Micro-cogeneration Unit with Variable–Speed Generator, International Scientific Event “Power Engineering 2010”, May

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