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Joanna Piepiórka-Stepuk and Marek Jakubowski

References Austin J.W., Bergeron G., 1995. Development of bacterial biofilms in dairy processing plants. J. Dairy Res., 62, 509-519. DOI: 10.1017/S0022029900031204. Blel W., Benezech T., Legentilhomme P., Legrand J., Le Gentil-Lelievre C., 2007. Effect of flow arrangement on the removal of Bacillus spores from stainless steel equipment surfaces during a Cleaning In Place procedure. Chem. Eng. Sci., 62, 3798-3808. DOI: 10.1016/j.ces.2007.04.011. Chen X. D., Li D. X.Y., Lin S. X.Q., Özkan N., 2004. On

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Raju Banda, Thi Hong Nguyen and Man Seung Lee

References Coronero M., Montante G., Paglianti A., Magelli F., 2011. CFD prediction of fluid flow and mixing in stirred tanks: Numerical issues about the RANS simulations. Comp. Chem. Eng. , 35, 1959-1968. DOI: 10.1016/j.compchemeng.2010.12.007. Agarwal A., Kumari S., Ray B.C., Sahu K.K., 2007. Extraction of acid and iron values from sulphate waste pickle liquor of a steel industry by solvent extraction route. Hydrometallurgy , 88, 58-66. DOI: 10.1016/j.hydromet.2007.04.001. Agarwal A., Kumai S., Sahu

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Antoni Rożeń

. Churchill S.W., 1977. A comprehensive correlating equation for laminar, assisting, forced and free convection. AIChE J., 23, 10-16. DOI: 10.1002/aic.690230103. Crane Co., 2009. Flow of fluids through valves, fittings and pipe. Technical Paper No. 410, Crane Company, Stamford, U.S.A. Drinovac P., 2006. Experimental studies on catalytic hydrogen recombiners for light water reactors. PhD Thesis. RWTH Aachen University. Euro Inox, 2014. Tables of Technical Properties of Stainless Steels. The European Stainless Steel Development

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Tadeusz Bohdal, Henryk Charun and Małgorzata Sikora

. COMPRESSORS’ 2009, 1-8. [4] Bohdal T., Charun H., Sikora M.: Heat transfer during condensation of refrigerants in tubular minichannels. Arch. Thermodyn. 33(2012), 2, 3-22. [5] Bohdal T., Charun H., Sikora M.: Empirical study of heterogeneous refrigerant condensation in pipe minichannels. Int. J. Refrig. 59(2015), 210-223. [6] Bohdal T., Charun H., Kuczyński W., Sikora M.: Investigation of heat exchange and flow resistances during condensation of refrigeration media in minichannels. In: Proc. 19th Int. Symp. Research

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Karina Tomaszewska, Joanna Kałużna-Czaplińska and Wojciech Jóźwiak

Thermal and thermo-catalytic degradation of polyolefins as a simple and efficient method of landfill clearing

Thermal degradation of the low density polyethylene (LDPE), polypropylene (PP) and the municipal waste plastics was investigated. The thermo-catalytic degradation of LDPE and PP was studied in the presence of the following catalysts: four different types of montmorillonite: K5, K10, K20, K30 and - for comparison - zeolites (natural - clinoptilolite, YNa+ and YH+). Thermal analyses TG-DTA-MS of polymers and polymer-catalyst mixtures were carried out in an argon flow atmosphere in isothermal and dynamic conditions. The following order was found: in lowering the reaction temperature for LDPE degradation YH+ > mK5 > mK20 = mK30 >mK10 > NZ > YNa+; for PP degradation: mK20 > mK5 = mK30 >mK10 > YH+ > NZ > YNa+. The activity tests were carried out in a stainless steel batch reactor under atmospheric pressure in a wide temperature range of up to 410°C, and using the atmosphere of argon flow. The liquid products were analysed by the GC-MS method. The hydrocarbons in the liquid products from thermal degradation of polymers were broadly distributed in the carbon fractions of C8 to C26 - for LDPE and C6 to C31 for PP.

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Wiesław Zima, Sławomir Grądziel and Artur Cebula

). Profos P.: Dynamics of Superheater Control. Combustion 31 (1959). Profos P.: Die Regelung von Dampfanlagen. Springer Verlag, Berlin 1962 (in German). Krzyżanowski J.A., Głuch J.: Heat-flow diagnostics of energy objects. IMP PAN, Gdansk 2004 (in Polish). Fluent 6.0. Computational fluid dynamics software. Fluent Inc., Lebanon, NH, USA 2006. Bertin J. J.: Aerodynamics for Engineers , 4th edn. Prentice Hall, New Jersey 2002

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Marcin Trojan

References [1] W essel B., R üsenberg D., S chlenkert J.U., T hiele I., K arkowski G.: Betriebserfahrungen mit dem Block Niederaußem K . VGB PowerTech 11 (2006), 47–51. [2] T aler J. (Ed.): Thermal and flow processes in large power boilers. Modelling and monitoring . PWN, Warsaw 2010. [3] H ewitt G.F., S hires G.L., B ott T.R.: Process Heat Transfer . CRC Press – Begell House, Boca Raton 1994. [4] S hah R.K., S ekulić D.P.: Fundamentals of heat exchanger design . Wiley, Hoboken 2003. [5] K akaç S., L iu H.: Heat

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Rafał Wyczółkowski

of the Rayleigh number in the area of steel rectangular sections in the conditions of steady and unsteady heat flow . Civil Environ. Eng. Rep. 14 (2014), 119–132. [16] www.czaki.pl/en/

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Rafał Wyczółkowski and Dorota Musiał

References Staniszewski B.: Heat Exchange. Theoretical bases. PWN, Warsaw 1980 (in Polish). Kostowski E.: Heat Flow. Wydawnictwo Politechniki Śląskiej, Gliwice 2000 (in Polish). ThermaCAM P65. User Guide. FLIR SYSTEMS, 2004. Minkina W.: Thermovision measurements — equipment and methods. Wydawnictwo Politechniki Częstochowskiej, Częstochowa 2004. Kruczek T.: Analysis of the possibilities of thermovisual temperature

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Rafał Wyczółkowski and Dorota Musiał

). [5] Wiśniewski S.: Heat Transfer . PWN, Warsaw 1979 (in Polish). [6] Wyczółkowski S.: Modelling of Steady Free Convection in Two-dimensional Enclosed Space . Wydawnictwo Politechniki Częstochowskiej, Częstochowa 1998 (in Polish). [7] Kostowski E.: Heat Flow . Wydawnictwo Politechniki Śląskiej, Gliwice 2000 (in Polish). [8] Raźnjević K.: Thermal Table with Diagrams . WNT, Warsaw 1966 (in Polish). [9] Musiał D. Heat Transfer in Steel Rods Bundle During Heating . PhD thesis, Czestochowa University of