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K. Janiszewski

argonu na proces filtracji ciekłej stali z wtrąceń niemetalicznych, Praca inżynierska, Katowice 2009. K. Janiszewski, Rafinacja ciekłej stali w atmosferze ochronnej, Hutnik-Wiadomości Hutnicze, 77 , 1, 8-13 (2010). K. Janiszewski, Z. Kudliński, Filtracja stali w linii technologicznej urządzenia COS, II Międzynarodowa konferencja COS, 101-107, Krynica 2006. T. Merder, J. Jowsa, A. Boguslawski, The analysis of the conditions of steel flow in the tundish performed by a numerical method

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A. Cebo-Rudnicka, Z. Malinowski and T. Telejko

REFERENCES [1] I. Olejarczyk, A. Adrian, H. Adrian, B. Mrzygłód, Algorithm for controlling of quench hardening process of constructional steels, Achieves of Metallurgy and Materials 55 , (1), 171-179 (2010). [2] R.L.S. Otero, W.R. Otero, G.E. Otten, L.C.F. Canale, Quench factor characterization of steel hardening: A review, International Journal of Mechanical Engineering and Auromation 1 , (3), 119-128 (2014). [3] T. Domański, A. Bokota, The numerical model to prediction of phase components and stresses distribution in hardened tool steel for

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J. Lamut, J. Falkus, B. Jurjevec and M. Knap

References Y. Vermeulen, et al., Material Evaluation to Prevent Nozzle Clogging during Continous Casting of Al Killed Steels. ISIJ International 42 , 11, 1234-1240 (2002). S. Ogibayashi et al., Mechanism and Counter-measure of Alumina Buildup on Submerged Nozzle in Continuous Casting. 75th ISS Steelmaking Conference, Toronto, Canada, April (1992). L. Sowa, A. Bokota, Numerical model of thermal and flow phenomena the process growing of the cc slab. Archives of Metallurgy and

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D. Kalisz

.A. Kacar, A. Moitra, Behavior of Ceramic Particles at the Solid - Liquid Metal Interface in Metal Matrix Composites, Met. Trans. A. 19A (1988). [8] Q. Han, J. Hunt, Redistribution of Particles during Solidification, ISIJ Int., 35 (1995). [9] P.G. Saffman, The Lift on Small Sphere ina Slow Shear Flow, J. Fluid mech., 22 (1965). [10] K. Mukai, M. Zeze, Motion of Fine Particles under Interfacial Tension Gradient in Relation to Continuous Casting Process, Steel Research 74, 3 (2003). [11] D. Kalisz

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K. Michalek, K. Gryc, L. Socha, M. Tkadlečková, M. Saternus, J. Pieprzyca, T. Merder and L. Pindor

References [1] K.M. Godiwalla, S.K. Sinha, C.S. Sivaramakrishnam, Steel Research Int. 65, 7, 267-271 (1994). [2] S.C. Koria, S. Singh, ISIJ Int. 34, 10, 784-793 (1994). [3] D. Mazumdar, R.I.L. Guthrie, ISIJ Int. 35, 1, 1-20 (1995). [4] B. Li, F. Tsukihashi, ISIJ Int. 40, 12, 1203-1209 (2000). [5] H.J. Odenthal, H. Pfeifer, M. Klaas, Steel Research Int., 71, 6-7, 210-220 (2000). [6] A. Ruckert, M. Warzecha, R. Koitzsch, M. Pawlik, H. Pfeifer, Steel Research Int. 80

Open access

K. Michalek, K. Gryc, L. Socha, M. Tkadlečková, M. Saternus, J. Pieprzyca, T. Merder and L. Pindor

References [1] K.M.Godiwalla, S.K. Sinha, C.S. Sivaramakrishnam, Steel Research Int. 65, 7, 267-271 (1994). [2] S.C. Koria, S. Singh, ISIJ Int. 34, 10, 784-793 (1994). [3] D. Mazumdar, R.I.L. Guthrie, ISIJ Int. 35, 1, 1-20 (1995). [4] B. Li, F. Tsukihashi, ISIJ Int. 40, 12, 1203-1209 (2000). [5] H.J. Odenthal, H. Pfeifer, M. Klaas, Steel Research Int. 71, 6-7, 210-220 (2000). [6] A. Ruckert, M. Warzecha, R. Koitzsch, M. Pawlik, H. Pfeifer, Steel Research Int. 80, 8

Open access

A. Fornalczyk, S. Golak, R. Przyłucki and J. Willner

, Mathematical Prob. in Engineering, Article ID 461085, doi:10.1155/2013/461085 (2013). [13] J. Pal, A. Cramer, Th. Gundrum, G. Gerbeth, FLOW MEASUREMENT AND INSTRUMENTATION, 20, 6, 241-251 (2009). [14] T. Merder, J. Pieprzyca, M. Warzecha, 48, 3, 143-146 (2009). [15] L. Blacha, R. Burdzik, A. Smalcerz, Archives of Metallurgy and Materials, 58, 1, 197-201 (2013). [16] T. Merder, J. Pieprzyc a, M. Saternus, Metalurgija 53 (2), 155-158 (2014).

Open access

Farid Khayatzadeh and Jafar Ghafouri

Abstract

This paper presents a development of a model of a set of multistage centrifugal electro pumps including two 4 stage stainless steel centrifugal pumps, each coupled to a 4 kW three-phase induction motor, connected to a hydraulic application running under two control strategies including constant speed and variable speed methods. Each pump provides 16 m3/hr flow rate and 58mwater head at BEP (Best Efficiency Point). Dynamicity of the model causes variations in all operational parameters of pumping system in any variation on consuming flow rate. Each electro pump has been driven with a variable frequency drive utilizing frequency control method for adjusting the rotational speed under a PID control regarding to match of pumping system operational point with the consumption point to save the energy. 83% energy saving is achieved by model in variable speed control strategy comparing to constant speed control strategy. MATLAB/SIMULINK software using ode45 solver and variable step size simulates this model.

Open access

J. Tomków, D. Fydrych, G. Rogalski and J. Łabanowski

., Feng J., Wang G.: Effect of water flow on the arc stability and metal transfer in underwater flux-cored wet welding. Journal of Materials Processing Technology. 31 (2018), 103-115. 15. Shi Y., Hu Y., Yi Y., Lin S., Li Z.: Porosity and microstructure of underwater wet FCAW of duplex stainless steel. Metallography, Microstructure, and Analysis. 6(5) (2017), 383-389. 16. Fydrych D., Łabanowski J., Tomków J., Rogalski G.: Cold cracking of underwater wet welded S355G10+N high strength steel. Advances in Materials Science. 15(3) (2015), 48-56. 17

Open access

J. Winczek and T. Skrzypczak

. Manufacturing Systems, Brasov, Regent, 10 3(27) 291-294 (2009). [16] J. Winczek, Analytical solution to transient temperature field in a half-infinite body caused by moving volumetric heat source, Int. J. Heat Mass Transfer 53 , 5774-5781 (2010). [17] J. Winczek, New approach to modeling of temperature field in surfaced steel elements, Int. J. Heat Mass Transfer, 54 , 4702–4709 (2011). [18] P.R. Vishnu, W.B. Li, K.E. Easterling, Heat-flow model for pulsed welding, Mater. Sci. Techn. 7 , 649-659 (1991). [19] P.J. Modenesi, R.I. Reis, A model for