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Ireneusz Pielecha, Jacek Pielecha, Maciej Skowron and Aleksander Mazanek

–857. 4. Ferreira da Silva M.P., Rodrigues e Brito L., Honorato F.A et al.: Classification of gasoline as with or without dispersant and detergent additives using infrared spectroscopy and multivariate classification . Fuel, 116, 2014, pp.151–157. 5. Herrmann H.-O., Gorbach A., Lettmann H., Chebli E.: The (R)evolution of Daimler’s heavy duty diesel engine platform . 37. Internationales Wiener Motorensymposium 2016. 6. Kowalski J.: An experimental study of emission and combustion characteristics of marine diesel engine with fuel injector malfunctions

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Łukasz Dunajski, Wojciech Kruk and Wojciech Nowak

Abstract

According to a fuel flexibility, fluidized bed boilers are considered as appropriate for biomass combustion as cofiring. But the burning of fuels such as forest and agricultural biomass raises a number of operational problems. Most important of these problems are bed agglomeration and deposition. Deposition appears when biomass contains significant amounts of alkali elements, such as sodium and potassium. The purpose of the work is to select a fuel additive to overcome these operational problems. Investigations were conducted in two stages at a pilot scale 0.1 MWth laboratory circulating fluidized bed reactor. As the fuel, the mixture of biomass contained forest residues, sunflower husks, straw and wood pellets from mixed woods was selected. In the first stage biomass was burnt without any additives, while in the second one the fuel was enriched with some additive. The additive (liquid mixture of chemicals) was added to the fuel in amounts of 1 dm3 per 5-10 Mg of fuel. The following operational parameters were examined: temperature profiles along the height of the circulating fluidised bed column, pressure profiles, emissions. After the tests, the laboratory reactor was inspected inside. Its results enables expression of the following conclusions: there was no agglomeration during fuel additive testing, and the deposition was reduced as well. Moreover, the parts (heating surfaces, separator) of the laboratory reactor were coated with a protective layer. The layer covered microcracks and protected the parts from deposition for a long period after the operation.

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Aurel Gaba, Vasile Bratu, Dorian Musat, Ileana Nicoleta Popescu and Maria Cristiana Enescu

://www.ornl.gov/sci/ees/itp/documents/FnIRptRecuperatorsFinal.pdf . [4] Schalles, D.G., The next generation of combustion technology for aluminum melting, http://www.bloomeng.com/aluminum-studies.html . [5] Schack, A., Industrial heat transfer , Chapmann and Hall, London 1965. [6] Heiligenstaedt, W., Thermique appliques aux fours industriels , Dunod, Paris 1971. [7] Gaba, A., Heat transfer in industrial instalations , Publishing Bibliotheca, Targoviste 2004. [8] Ward, M.E. a.a., Application of a new ceramic recuperator technology for use on an aluminum remelt furnace, Gas Warme International , band 37

Open access

Jarosław Krzywański, Rafał Rajczyk and Wojciech Nowak

References Abelha P., Gulyurtlu I., Crujeira T., Cabrita I., 2008. Co-combustion of several biomass materials with bituminous coal in a circulating fluidized bed combustor. 9th International Conference on Circulating Fluidized Beds in conjunction with the 4th International VGB Workshop Operating Experience with Fluidized Bed Firing Systems, Hamburg, Germany, 2008. Armesto L., Bahillo A., Veijonen K., Cabanillas A., Otero J., 2002. Combustion behaviour of rice husk in a bubbling fluidised bed. Biomass Bioenerg., 23, 171-179. DOI

Open access

Janusz Kotowicz and Marcin Job

.S.: Characteristics of oxy-fuel combustion in gas turbines. Applied Energy, 89(2012), 38-394. [5] Zhanga N., Lior N.: Two novel oxy-fuel power cycles integrated with natural gas reforming and CO2 capture. Energy 33(2008), 340-351. [6] Kotowicz J., Job M.: Optimization of the steam part parameters in the CCGT unit with oxy-combustion and the carbon capture installation. Rynek Energii 107(2013), 4, 48-55 (in Polish). [7] Kotowicz J.: Combined Cycle Power Plants. Wydawnictwo KAPRINT, Lublin 2008 (in Polish). [8] Kotowicz

Open access

Zbigniew Korczewski

combustion engine piston-crankshaft systems and evaluating its practical applicability to rational control of the process of their operation taking into account the expert system (in Polish). Work within the framework of the Research Project No. N509 494638 financed by MNiSW. Gdansk University of Technology, 2012. 4. Korczewski Z., Zacharewicz M.: Alternative diagnostic method applied on marine diesel engines having limited monitoring susceptibility. Transactions of the Institute of Measurement and Control, Great Britain SAGE - Vol. 34, No. 8/December/2012

Open access

Marek Dzida and Jerzy Girtler

References 1. Dzida M.: Identyfikacja przyczyn niestacjonarności oraz niestabilności temperatury I ciśnienia gazów za komorą spalania turbiny gazowej. Monografie 16. Wydawnictwo Politechniki Gdańskiej, Gdańsk 2000. 2. Girtler J.: Possibility of valuation of operation of marine diesel engines. Journal of POLISH CIMAC, Vol 4, No 1, 2009. 3. Girtler J.: Energy-based aspect of operation of diesel engine. COMBUSTION ENGINES No 2/2009 (137). 4. Girtler J.: Semi-Markov reliability model of gas turbine

Open access

Bernhard Peters and Joanna Smuła-Ostaszewska

References Aho M., Silvennoinen J, 2004. Preventing chlorine deposition on heat transfer surfaces with aluminium-silicon rich biomass residue and additive. Fuel , 83, 1299-1305. DOI: 10.1016/j.fuel.2004.01.011. Aho M., Ferrer E., 2005. Importance of coal ash composition in protecting the boiler against chlorine deposition during combustion of chlorine-rich biomass. Fuel , 84, 201-212. DOI: 10.1016/j.fuel.2004.08.022. Chapman P., 1996. CFD enhances waste combustion design and modification. Combustion

Open access

Zbigniew Dabrowski, Jacek Dziurdz and Dorota Górnicka

Physica Polonica A, 118, 1, 49-53. 7. Dziurdz J. (2013), Analysis of nonlinear phenomena in diagnosing of the vehicle drive systems [in Polish: Analiza zjawisk nieliniowych w diagnozowaniu układów napedowych pojazdów], Publishing and Printing House of the Institute for Sustainable Technologies - NRI, Radom. 8. Górnicka D. (2016), Utilising the vibration signal in diagnosing defects of valves in internal combustion engines [in Polish: Wykorzystanie sygnału drganiowego w diagnozowaniu uszkodzen zaworów silników spalinowych], PhD

Open access

I. Barmina, A. Lickrastina, M. Zake, A. Arshanitsa, V. Solodovnik and G. Telysheva

References 1. Klass, D. L. (2004). Biomass for Renewable Energy and Fuels. Encyclopedia of Energy 1, Elsevier Inc., 193-212. 2. Nussbaumer, T. (2008). Biomass Combustion in Europe. Overview on Technologies and Regulations, Final Report 08-03, New York State Energy Research and Development Authority, NYSERDA, 97. http://www.nyserda.org/programs/environment/emep/Report%2008-03%20-%20Biomass%20Combustion%20in%20Europe-complete-after%20corrections.pdf 3. Vasilev, S., Baxter, D., Andersen, L.K. & Vasileva