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Kielce, Poland

The Kielce University of Technology is a relatively young institution, although the traditions of higher education in Kielce go back to the beginning of the 19th century. It was here that Stanisław Staszic founded the Mining Academy, one of the first higher schools in Poland, which operated in the years 1816–1826 and provided qualified personnel to meet the needs of the Old Polish Industrial Basin. Higher education became available in Kielce again in 1965 when Kielce-Radom Evening Higher Engineering School was established. It was transformed into the Kielce University of Technology in 1974.The University has four faculties: Civil and Environmental Engineering, Electrical and Computer Engineering, Mechatronics and Machinery Design, Management and Computer Modelling.At present, over 9,400 students take courses in seven fields of studies: Civil Engineering, Environmental Engineering, Electrical Engineering, Computer Science, Mechanics and Machinery Design, Management and Marketing, Management and Production Engineering. The University is entitled to award a Doctor's degree in five academic disciplines: civil engineering, environmental engineering, electrical engineering, machine building and operation, mechanics, and a degree of Doctor Habilitated in machine building and operation. In the last discipline doctoral courses are also run.Staff of 403 academic teachers, including 81 Professors and Doctors Habilitated and 153 PhDs together with laboratories provide education in all fields of studies and specializations.Co-operation with partner institutions constitutes an important issue for the University. 27 bilateral agreements provide basis for collaboration in research and teaching with 50 universities from 27 countries. The University is currently running 10 projects being a part of international programmes and also research tasks, one of which belongs to the Fifth EU Framework Programme.A number of things differentiate the University from other Polish higher schools:The Centre for Laser Technologies of Metals, named after Prof. Frąckiewicz, the late University Rector, is a joint unit of the University and the Polish Academy of science. It is housed in a modern building completed in 2000. The equipment the Centre has at its disposal , together with the support from the Polish Academy of science provides the possibility of conducting unique research. Such investigations have led, among others, to working out the technology of laser forming, the only one in the world. Apart from the research, the Centre also offers educational options, running a country unique specialization in laser and plasma technologies.The specialization of Repair and Preservation of Historical Monuments combines the practical knowledge of civil engineering with arts and architecture. Its students have recently worked on the overhaul and conservation of the Mirror Room of the Polish Academy of science Station in Paris. The quality of their work and the level of expertise have been highly appreciated. For many years, ordered by the Minister of Culture and National Heritage, inventory making of Polish tombs in Ukraine has been going on.One of the most modern, fully computerised libraries in Poland was made available to the users in 2002.Compact University campus housing laboratories, teaching buildings and hostels as well as the size of the University account for its being student friendly, facilitate human contact, making it easier to find help. Structural computer network, covering also students' hostels, provides access to the world's knowledge and information resources. Student organisations and the Student Cultural and Social Centre operating at the hostel area offer different ways to spend free time. The Student Self-government started to run a new student club in 2002.Careers Office, operating at the University on the basis of agreement with the Province Labour Office, helps our graduates seek job vacancies. Wikipedia.

Blasiak S.,Kielce University of Technology
International Journal of Heat and Mass Transfer | Year: 2015

The mathematical model proposed in this paper describes thermal deformation processes in a non-contacting face seal. The processes include heat transfer phenomena in the rings sealing the radial clearance gap. In a non-contacting face seal with a flexibly mounted rotor (FMR), used, for instance, in a turbomachine, mechanical energy is instantly converted into heat. The heat flux generated in the film between the two faces travels through the structural elements to the surrounding fluid, causing asymmetric distributions of temperature. In the study, the mathematical model of the non-contacting face seal was solved analytically. The distributions of temperature in the rings were calculated using the Fourier-Bessel series as a surface function of two variables (r, z) for a ring cross-section. The thermoelastic problems described with Navier's equations were solved by applying the Boussinesq functions and the Goodier thermoelastic displacement potential. The method used to solve the model is very complex and covers many theoretical and practical problems. These were included and described by presenting the solutions to the thermoelastic problems for non-contacting face seals. The results, especially those concerning fields of temperatures and thermal distortions, were compared with the results available in the literature and those obtained through numerical calculations presented in the author's previous papers. © 2014 Elsevier Ltd. All rights reserved.

Kossakowski P.G.,Kielce University of Technology
Journal of Materials in Civil Engineering | Year: 2012

This paper presents results of experimental and numerical modeling of ductile fracture and failure of elements made of S235JR steel subjected to static tension. The prediction of failure was generally based on the stress modified critical strain (SMCS) model. The numerical simulations were performed using the Gurson-Tvergaard-Needleman (GTN) model, which takes into consideration the material structure. The approach applied in this study was based on the computational cells with microstructurally based length scales. The cell size and initial porosity were determined through microstructural examinations of S235JR steel. The parameters of the GTN model for S235JR steel were established on the basis of the microstructural analysis and the numerical modeling of tensile strength tests. As a result, it was possible to determine the SMCS failure criterion to predict ductile fracture for S235JR steel. © 2012 American Society of Civil Engineers.

Zorawski W.,Kielce University of Technology
Surface and Coatings Technology | Year: 2013

A nanostructured WC-12Co composite coating was prepared by applying the liquid-fuel HVOF spray technique. The microstructure and composition of tungsten carbide nanopowder were analyzed with a scanning electron microscope (SEM) and a transmission electron microscope (TEM). The investigations revealed that the sizes of the original particles were in the range of 50-500nm. The nanostructured coatings had denser structure and higher hardness than the conventional coating. The content of W2C, WC1-x, W and of amorphous phase was also smaller. The coefficient of friction for the HVOF-sprayed nanostructured WC-12Co coating was four times lower than that for the conventionally sprayed WC-12Co coatings. Finally, the nanostructured coating showed higher abrasive resistance than the conventionally sprayed coatings. © 2012 Elsevier B.V.

The paper presents the application of liquid crystal thermography for temperature determination and visualisation of two phase flow images on the studied surface. Properties and applications of thermochromic liquid crystals are discussed. Liquid crystals were applied for two-dimensional detection of the temperature of the heating foil forming one of the surfaces of the minichannel along which the cooling liquid flowed. The heat flux supplied to the heating surface was altered in the investigation and it was accompanied by a change in the color distribution on the surface. The accuracy of temperature measurements on the surface with liquid crystal thermography is estimated. The method of visualisation of two-phase flow structures is described. The analysis of monochrome images of flow structures was employed to calculate the void fraction for some cross-sections. The flow structure photos were processed using Corel graphics software and binarized. The analysis of phase volumes employed Techsystem Globe software. The measurement error of void fraction is estimated. © 2013 Polish Academy of Sciences. All rights reserved.

Mola R.,Kielce University of Technology
Materials Characterization | Year: 2013

Al/Zn-enriched surface layers were fabricated by heating Mg specimens in contact with Al-Zn powder mixtures in a vacuum furnace at 445 C. The layer formation process took place through partial melting at the Mg-substrate/powder- mixture interface. Heating times ranged from 20 to 80 min. The layer microstructure and composition were analyzed by optical microscopy (OM), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The layers were 100-900 μm in thickness, depending on the treatment time. The examination results revealed that the layers consisted of Mg17(Al,Zn) 12 and Mg5Al2Zn2 intermetallic phases and a solid solution of Al and Zn in Mg. Between the Al/Zn-enriched layer and the Mg substrate, there was a transition zone of a solid solution of Al and Zn in Mg with a thickness of 20-30 μm. The layers had much higher microhardness than the Mg substrate. © 2013 Elsevier Inc.

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