Ing. Milan Hnízdil, Ph.D.

E-mail:   Milan.Hnizdil@vut.cz 
Pracoviště:   Laboratoř přenosu tepla a proudění
Zařazení:   Výzkumný pracovník
Místnost:   D3/212
Telefon:   +420 54114 3214

53765

Vzdělání a akademická kvalifikace

  • 2012 Ph.D., VUT Brno, FSI
  • 2008 Ing., VUT Brno, FSI. Obor: Matematické inženýrství
  • 2008 Laurea specialistica, University of L'Aquila, Italy

Univerzitní aktivity

  • 09/2005 - 08/2007 Člen studentské komory akademického senátu VUT FSI

Vybrané publikace:

  • HNÍZDIL, M.; CHABIČOVSKÝ, M.:
    Improvement of S355J2 Steel Mechanical Properties by Heat Treatment,
    24th INTERNATIONAL CONFERENCE ON MATERIALSAND TECHNOLOGY, pp.84-84, ISBN 978-961-94088-0-3, (2016), Inštitut za kovinske materiale in tehnologije
    abstrakt
  • HORSKÝ, J.; HNÍZDIL, M.; CHABIČOVSKÝ, M.; KOTRBÁČEK, P.:
    In-line heat treatment of flat products,
    Proceedings European Conference on Heat Treatment 2016 and 3rd International Conference on Heat Treatment and Surface Engineering in Automotive Applications, 11 – 13 May 2016, Prague, Czech Republic, pp.1-8, ISBN 978-80-904462-9-8, (2016), Asociace pro tepelné zpracování kovů
    článek ve sborníku
    akce: European Conference on Heat Treatment 2016 and 3rd International Conference on Heat Treatment and Surface Engineering in Automotive Applications, Praha, 11.05.2016-13.05.2016
  • CHABIČOVSKÝ, M.; HORSKÝ, J.; RAUDENSKÝ, M.; HNÍZDIL, M.; KOTRBÁČEK, P.:
    Design of quenching units for heat treatment of tubes,
    La Metallurgia Italiana, Vol.2016, (2016), No.1, pp.23-28, ISSN 0026-0843, Associazione Italiana di Metallurgia
    článek v časopise
  • HNÍZDIL, M.; CHABIČOVSKÝ, M.:
    Low temperature surface cooling
    souhrnná výzkumná zpráva k smluv. výzkumu
  • CHABIČOVSKÝ, M.; HNÍZDIL, M.; TSENG, A.; RAUDENSKÝ, M.:
    Effects of oxide layer on Leidenfrost temperature during spray cooling of steel at high temperatures,
    International journal of heat and mass transfer, pp.236-246, ISSN 0017-9310, Elseviere
    článek v časopise
  • HORSKÝ, J.; KOTRBÁČEK, P.; HNÍZDIL, M.; CHABIČOVSKÝ, M.; STRÁNSKÝ, M.:
    Heat transfer measurement on run out table voestalpine Stahl
    souhrnná výzkumná zpráva k smluv. výzkumu
  • CHABIČOVSKÝ, M.; HORSKÝ, J.; RAUDENSKÝ, M.; HNÍZDIL, M.; KOTRBÁČEK, P.:
    DESIGN OF QUENCHING UNITS FOR HEAT TREATMENT OF TUBES,
    European conference on Heat treatment 2015 a 22nd IFHTSE congres, pp.1-9, ISBN 978-88-98990-03-0, (2015), Associazione Italiana di metallurgia
    článek ve sborníku
    akce: European conference on Heat treatment 2015 a 22nd IFHTSE congres, Venice, 20.05.2015-22.06.2015
  • CHABIČOVSKÝ, M.; HORSKÝ, J.; HNÍZDIL, M.; STRÁNSKÝ, M.:
    In-line tepelné zpracování ocelových profilů a trubek,
    Hutnické listy, Vol.68, (2015), No.2, pp.14-19, ISSN 0018-8069, Ocelot s.r.o
    článek v časopise
  • STRÁNSKÝ, M.; BROŽOVÁ, T.; RAUDENSKÝ, M.; HNÍZDIL, M.; TUROŇ, R.:
    Effect of Various Spray Cooling Configurations on Hardness Profile of Tubes,
    METAL 2015 24th International Conference on Metallurgy and Materials, pp.1-6, ISBN 978-80-87294-58-1, (2015), Tanger Ltd Ostrava
    článek ve sborníku
    akce: METAL 2015 24th International Conference on Metallurgy and Materials, Brno, 03.06.2015-05.06.2015
  • HNÍZDIL, M.; CHABIČOVSKÝ, M.; RAUDENSKÝ, M.:
    Influence of the impact angle and pressure on the spray cooling of vertically moving hot steel surfaces,
    Materiali in tehnologije, Vol.49, (2015), No.3, pp.333-336, ISSN 1580-2949, Insitute of Metals and Technology, Ljubljana, Slovenia
    článek v časopise
  • HORSKÝ, J.; CHABIČOVSKÝ, M.; HNÍZDIL, M.; STRÁNSKÝ, M.; KOTRBÁČEK, P.:
    Chlazení trubek – první testy
    souhrnná výzkumná zpráva k smluv. výzkumu
  • POHANKA, M.; RAUDENSKÝ, M.; HNÍZDIL, M.; POLIAK, J.; HŘIBOVÁ, V.; VOTAVOVÁ, H.; BROŽOVÁ, T.:
    Final report - Optimization of Descaling Section for POSCO Himill Plant
    souhrnná výzkumná zpráva k smluv. výzkumu
  • CHABIČOVSKÝ, M.; HORSKÝ, J.; HNÍZDIL, M.; STRÁNSKÝ, M.; KOTRBÁČEK, P.:
    Chlazení trubek
    souhrnná výzkumná zpráva k smluv. výzkumu
  • HORSKÝ, J.; KOTRBÁČEK, P.; HNÍZDIL, M.; STRÁNSKÝ, M.; KVAPIL, J.; BROŽOVÁ, T.; VOTAVOVÁ, H.:
    Development of cooling unit – H-profile
    souhrnná výzkumná zpráva k smluv. výzkumu
  • HNÍZDIL, M.; CHABIČOVSKÝ, M.; RAUDENSKÝ, M.; MAGADOUX, E.; CODE, F.:
    Spray Cooling Unit for Heat Treatment of Stainless Steel Sheets,
    Advanced Materials Research, Vol.936, (2014), No.1, pp.1720-1724, ISSN 1022-6680, Trans Tech Publications
    článek v časopise
  • POHANKA, M.; RAUDENSKÝ, M.; HNÍZDIL, M.; STRÁNSKÝ, M.; KOMÍNEK, J.:
    Heat Transfer Study of Multi–Jet Nozzle and Spray Nozzle
    souhrnná výzkumná zpráva k smluv. výzkumu
  • HORSKÝ, J.; LUKS, T.; ONDROUŠKOVÁ, J.; HNÍZDIL, M.; KOMÍNEK, J.; KRIŠTOF, O.; KEJÍK, P.:
    Heat Transfer measurement of secondary cooling in continuous casting
    souhrnná výzkumná zpráva k smluv. výzkumu
  • HNÍZDIL, M.; CHABIČOVSKÝ, M.; RAUDENSKÝ,M.:
    Influence of impact angle and pressure on spray cooling of vertically moving hot steel surfaces,
    Program and book of abstracts, 21th Conference on Materials and Technology, pp.85-85, ISBN 978-961-92518-6-7, (2013), Institute of Metals and Technology
    abstrakt
  • RAUDENSKÝ, M.; HNÍZDIL, M.; CHABIČOVSKÝ, M.; KOMÍNEK, J.:
    Testing of the WET RJC test bench
    souhrnná výzkumná zpráva k smluv. výzkumu
  • HNÍZDIL, M.; POHANKA, M.; RAUDENSKÝ, M.; CHABIČOVSKÝ, M.; STRÁNSKÝ, M.:
    Cooling Tests: 1/preparation of the samples, 2/ tests to be performed
    souhrnná výzkumná zpráva k smluv. výzkumu
  • RAUDENSKÝ, M.; POHANKA, M.; STRÁNSKÝ, M.; HNÍZDIL, M.; KOMÍNEK, J.:
    Heat transfer study of multi-jet nozzle and spray nozzle
    souhrnná výzkumná zpráva k smluv. výzkumu
  • POHANKA, M.; KOMÍNEK, J.; RAUDENSKÝ, M.; HRABOVSKÝ, J.; HNÍZDIL, M.; STRÁNSKÝ, M.:
    Study of technology for good flatness of plate
    souhrnná výzkumná zpráva k smluv. výzkumu
  • POHANKA, M.; RAUDENSKÝ, M.; KOTRBÁČEK, P.; HNÍZDIL, M.; ONDROUŠKOVÁ, J.; STRÁNSKÝ, M.:
    Optimization of Descaling and Cooling of Rolls
    souhrnná výzkumná zpráva k smluv. výzkumu
  • RAUDENSKÝ, M.; HNÍZDIL, M.; KOTRBÁČEK, P.:
    Why oxides intensify spray cooling?,
    The 30th International Steel Industry Conference in Paris, pp.92-93, (2012)
    abstrakt
    akce: The 30th International Steel Industry Conference in Paris, Paříž, 18.12.2012-19.12.2012
  • RAUDENSKÝ, M.; POHANKA, M.; HRABOVSKÝ, J.; HNÍZDIL, M.; KOMÍNEK, J.; STRÁNSKÝ, M.:
    Study of technology for good flatness of plates - 1st invoice
    souhrnná výzkumná zpráva k smluv. výzkumu
  • RAUDENSKÝ, M.; POHANKA, M.; ONDROUŠKOVÁ, J.; STRÁNSKÝ, M.; KOTRBÁČEK, P.; HNÍZDIL, M.:
    Optimization of Descaling and Cooling of Rolls - final payment
    souhrnná výzkumná zpráva k smluv. výzkumu
  • RAUDENSKÝ, M.; HORSKÝ, J.; HNÍZDIL, M.; CHABIČOVSKÝ, M.; LUKS, T.; KVAPIL, J.; PELÍŠEK, M.; HRAZDIL, V.:
    Measurement of the existing sprayline cooling capacity and determining of upper limit of cooling intensity
    souhrnná výzkumná zpráva k smluv. výzkumu
  • RAUDENSKÝ, M.; HNÍZDIL, M.; HWANG, J.; LEE, S.; KIM, S.:
    Influence of Water Temperature on The Cooling Intensity of Mist Nozzles in Continuous Casting,
    Materiali in tehnologije, Vol.46, (2012), No.3, pp.311-315, ISSN 1580-2949, Institute of Metals and Technology
    článek v časopise
  • HNÍZDIL, M.; RAUDENSKÝ, M.:
    Influence of Water Temperature on the Cooling Intensity during Continuous Casting and Hot Rolling,
    21ST INTERNATIONAL CONFERENCE ON METALLURGY AND MATERIALS (METAL 2012), pp.1-6, ISBN 978-80-87294-31-4, (2012), TANGER LTD
    článek ve sborníku
    akce: METAL 2012: 21st International Conference on Metallurgy and Materials, Brno, 23.05.2012-25.05.2012
  • CHABIČOVSKÝ, M.; RAUDENSKÝ, M.; HNÍZDIL, M.:
    INFLUENCE OF WATER TEMPERATURE ON HEAT TRANSFER COEFFICIENT IN SPRAY COOLING OF STEEL SURFACES,
    ENGINEERING MECHANICS 2012, pp.126-127, ISBN 978-80-86246-39-0, (2012), J. Náprstek, C. Fischer
    článek ve sborníku
    akce: Engineering Mechanics 2012, Svratka, 14.05.2012-17.05.2012
  • POHANKA, M.; HNÍZDIL, M.:
    Visualization of the nozzles configuration Inquiry 110395
    souhrnná výzkumná zpráva k smluv. výzkumu
  • RAUDENSKÝ, M.; HNÍZDIL, M.; LEE, S.; KIM, S.; HWANG, J.:
    Influence of Water Temperature on Cooling Intensity of Mist Nozzles in Continuous Casting,
    19th Conference on Materials and Technology, pp.60-70, ISBN 978-961-92518-4-3, (2011)
    článek ve sborníku
    akce: 19th conference on materials and technology, Portorož, 22.11.2011-23.11.2011
  • Raudenský Miroslav, Hnízdil Milan, Horský Jaroslav, Marmonier Frederic:
    Cooling System for Continuous Galvanizing Line
  • RAUDENSKÝ, M.; POHANKA, M.; HNÍZDIL, M.; MARMONIER, F.:
    COOLING SYSTEMS FOR CONTINOUS GALVANIZING LINE,
    20th Anniversary International Conference on Metallurgy and Materials - Metal 2011 - Conference Proceedings - Papers, pp.779-785, ISBN 978-80-87294-24-6, (2011), Tanger Ltd
    článek ve sborníku
    akce: Metal 2011 - 20. mezinárodní konference metalurgie a materiálů, Brno, 18.05.2011-20.05.2011
  • HNÍZDIL, M.; RAUDENSKÝ, M.:
    Descaling by Pulsating Water Jet,
    METAL 2010, 19th International Conference on metallurgy and Materials, pp.43-48, ISBN 978-80-87294-17-8, (2011), Tanger spol. s r.o.
    článek ve sborníku
    akce: Metal 2010 19. Mezinárodní konference metalurgie a materiálů, Rožnov pod Radhočtěm, 18.05.2010-20.05.2010
  • RAUDENSKÝ, M.; HORSKÝ, J.; HNÍZDIL, M.; KOTRBÁČEK, P.; POHANKA, M.:
    In-Line Heat Treatment and Hot Rolling,
    International conference on advances in materials and processing technologies (AMPT2010), pp.563-568, ISBN 978-0-7354-0871-5, (2010)
    článek ve sborníku
    akce: AMPT 2010, Paříž, 24.10.2010-27.10.2010
  • HNÍZDIL, M.; RAUDENSKÝ, M.:
    Descaling by Pulsating Water Jet,
    Sborník konference, pp.43-48, ISBN 978-80-87294-15-4, (2010), Tanger s.r.o.
    článek ve sborníku
    akce: Metal 2010 19. Mezinárodní konference metalurgie a materiálů, Rožnov pod Radhočtěm, 18.05.2010-20.05.2010
  • HORSKÝ, J.; POHANKA, M.; KOTRBÁČEK, P.; KVAPIL, J.; HRABOVSKÝ, J.; HNÍZDIL, M.; LUKS, T.; SLABÁKOVÁ, J.:
    Laboratory Measurements of HTC on Nozzle Array, Usiminas- Brasil
    odborná zpráva
  • HORSKÝ, J.; POHANKA, M.; HNÍZDIL, M.; SLABÁKOVÁ, J.; LUKS, T.:
    HTC Tests, Siemens VAI
    odborná zpráva
  • HORSKÝ, J.; KOTRBÁČEK, P.; POHANKA, M.; HRABOVSKÝ, J.; HNÍZDIL, M.; BOHÁČEK, J.:
    Heat Transfer Tests
    odborná zpráva
  • HORSKÝ, J.; RAUDENSKÝ, M.; POHANKA, M.; KOTRBÁČEK, P.; BOHÁČEK, J.; BELLEROVÁ, H.; HRABOVSKÝ, J.; HNÍZDIL, M.:
    Run-Out Table Cooling - 1.Upper Configuration, 2.Bottom Conf., voestalpine Grobblech
    odborná zpráva
  • HORSKÝ, J.; KOTRBÁČEK, P.; HRABOVSKÝ, J.; HNÍZDIL, M.; BOHÁČEK, J.:
    Spray Nozzle Testing for HTC Calculation, ArcelorMittal Chicago, USA
    odborná zpráva
  • RAUDENSKÝ, M.; HORSKÝ, J.; KOTRBÁČEK, P.; POHANKA, M.; HNÍZDIL, M.; BELLEROVÁ, H.; LUKS, T.:
    Fundamental study of new descaling technology including conventional descaling therory and optimisation of existing descaling system - POSCO
    odborná zpráva
  • RAUDENSKÝ, M.; HORSKÝ, J.; KOTRBÁČEK, P.; POHANKA, M.; HNÍZDIL, M.; BOHÁČEK, J.; LUKS, T.:
    Fundamental Study of Nozzle Characteristics for Accelerated Cooling
    odborná zpráva
  • RAUDENSKÝ, M.; POHANKA, M.; BELLEROVÁ, H.; HRABOVSKÝ, J.; HNÍZDIL, M.:
    Fundamental Study of Nozzle Characteristics for Accelerated Cooling, POSCO- Korea
    odborná zpráva
  • HORSKÝ, J.; POHANKA, M.; HRABOVSKÝ, J.; HNÍZDIL, M.; LUKS, T.:
    Optimisation of Work Roll Cooling, voestalpine Stahl, Siemens VAI
    odborná zpráva
  • RAUDENSKÝ, M.; KOTRBÁČEK, P.; HORSKÝ, J.; POHANKA, M.; HNÍZDIL, M.:
    Technická spolupráce v rámci řešení VÚ V284 - zvýšení účinnosti prac.válců pro 4ST a 5ST v definovaném členění
    odborná zpráva
  • HNÍZDIL, M.; BOHÁČEK, J.:
    Obrazová analýza vodního proudu,
    Engineering Mechanics 2007, pp.79-80, ISBN 978-80-87012-06-2, (2007), Academy of Science of the Czech Republic
    článek ve sborníku
    akce: Engineering Mechanics 2007, Svratka, 14.05.2007-17.05.2007

Seznam publikací na portálu VUT

Anotace nejvýznamnějších prací:

  • HNÍZDIL, M.; KOTRBÁČEK, P.:
    Heat treatment of rails,
    Materiali in tehnologije, Vol.51, (2017), No.2, pp.329-332, ISSN 1580-2949, Institute of Metals and Technology
    článek v časopise

    Heat treatment is increasingly used in the heavy industry. The main advantage of this method is the achievement of the required material and mechanical properties. Heat treatment allows for a manufacturing process, which can improve product performance by increasing the steel strength, hardness and other desirable characteristics. The microstructure, grain size and chemical composition of steel affect its overall mechanical behavior. Heat treatment is an efficient way to manipulate the properties of a steel product by controlling the cooling rate. It can be expressed using the heat-transfer coefficient (HTC). The controllability of the cooling process is very important. Mist and water nozzles may provide good controllability of the HTC. An experimental stand was designed and built. The stand consists of a movable trolley with a test sample, which moves under a spray at a given velocity. Sensors record the temperature history of the tested material. This experimental stand enables simulations of a variety of cooling regimes and evaluations of the final structures of tested samples. The same experimental stand is also used for designing cooling sections in order to determine the required heat-treatment procedures and the final structures. This paper describes a cooling-section design procedure for obtaining the required structure and mechanical properties of rails.
  • HNÍZDIL, M.; CHABIČOVSKÝ, M.:
    Tests on Full Cone nozzles
    souhrnná výzkumná zpráva k smluv. výzkumu

    During previous tests campaigns, tests were made on full cone nozzles cooling configurations. Some tests were notably done to compare their cooling efficiency with Bertin nozzles. These tests and the results are in the report “Measurement of the existing SPRAYLINE COOLING CAPACITY and determining of upper limit of cooling intensity”.
  • HNÍZDIL, M.; CHABIČOVSKÝ, M.:
    Improvement of S355J2 Steel Mechanical Properties by Heat Treatment,
    24th INTERNATIONAL CONFERENCE ON MATERIALSAND TECHNOLOGY, pp.84-84, ISBN 978-961-94088-0-3, (2016), Inštitut za kovinske materiale in tehnologije
    abstrakt

    Steel grade S355J2 (1.0577) is standard carbon steel which is commonly used in building engineering. The Heat Transfer and Fluid Flow Laboratory is equipped by a testing device called Karusel. It enables to simulate heat treatment processes. It is equipped by two different nozzle sizes cooling headers so it is possible to simulate cooling line with hard and soft cooling regimes (hard in high temperature area and soft in low temperature area). First, an austenitic steel plate was used to obtain heat transfer coefficient. It was used for simulations to predict the cooling regime for full scale experiment. S355J2 carbon steel samples were embedded by thermocouples to measure the temperature drop in the material. Dimensions of these samples were 100 x 100 mm and the thickness of them was 5, 12 and 20 mm. The main idea of this research was to improve the standard material properties. The initial temperature of samples was 930 °C and it was hold for more than 10 minutes. Then each sample was cooled down to the target equalization temperature of 600 °C in the whole body. This means that cooling was stopped when the surface temperature was lower than 600 °C and body center temperature was higher than 600 °C. Mechanical properties of heat treated samples were tested. A material hardness was significantly improved up to 10 mm from the sprayed surface. Two samples were chosen for tensile and Charpy pendulum impact tests. The strength was improved up to 820 MPa. The impact energy was improved four times up to 200 J.
  • POHANKA, M.; HNÍZDIL, M.; KOTRBÁČEK, P.; CHABIČOVSKÝ, M.:
    Comparison of Descaling Nozzles
    souhrnná výzkumná zpráva k smluv. výzkumu

    The main purpose of this project was to study high pressure descaling nozzles and to compare new Delavan nozzles with similar nozzles from Everloy. In total four types of measurements were done: impact pressure distribution measurements; heat transfer coefficient measurements, cooling homogeneity measurements which were done together with heat transfer coefficient measurements, and hot descaling quality measurements.
  • HORSKÝ, J.; HNÍZDIL, M.; CHABIČOVSKÝ, M.; KOTRBÁČEK, P.:
    In-line heat treatment of flat products,
    Proceedings European Conference on Heat Treatment 2016 and 3rd International Conference on Heat Treatment and Surface Engineering in Automotive Applications, 11 – 13 May 2016, Prague, Czech Republic, pp.1-8, ISBN 978-80-904462-9-8, (2016), Asociace pro tepelné zpracování kovů
    článek ve sborníku
    akce: European Conference on Heat Treatment 2016 and 3rd International Conference on Heat Treatment and Surface Engineering in Automotive Applications, Praha, 11.05.2016-13.05.2016

    An in-line heat treatment of rolled materials is becoming frequently used by hot rolling plants. This method achieves the required material structure without the necessity of reheating. This paper describes a design procedure of spray cooling sections for obtaining demanded structure and mechanical properties of steel flat products. The design involves several important parts. First, it is necessary to obtain boundary conditions for the numerical model. Several types of nozzles are tested and dependences of the heat transfer coefficient on the surface temperature are obtained. After that, the cooling process is simulated using obtained boundary conditions. The required cooling regime and appropriate type and size of nozzles are selected with the knowledge of the CCT diagram and simulations results. The selected heat treatment regime is then validated on the small sample quenching test. The regime is modified if it is necessary. Finally, the full scale sample is heat treated on the new experimental stand which was developed at the Brno University of Technology. This experimental stand allows cooling of the moveable sample by two types of nozzles. First, it is cooled by intensive spray for short time period and then it is cooled by soft spray. The stand is able to stop the cooling and temper the sample. This paper presents laboratory results of the heat treatment of S355 steel which was spray quenched and self-tempered (the hot core tempers the quenched outer part) at the temperature 600 °C.