Ing. Pavel Skryja, Ph.D.
E-mail:   skryja@fme.vutbr.cz  Dept.:   Institute of Process Engineering Dept. of Process Engineering Position:   Assistant Professor Room:   D5/458

Supervised courses:

• (BXA008)

Publications:

• HUDÁK, I.; BĚLOHRADSKÝ, P.; SKRYJA, P.; JÍCHA, J.:
  The Effect of Inert Fuel Compounds on Flame Characteristics,
  Proceedings of the 8th European Combustion Meeting, pp.457-462, ISBN 978-953-59504-1-7, (2017), Adria Section of the Combustion Institute (ASCI)
  conference paper
  akce: 8th European Combustion Meeting, Dubrovnik, 18.04.2017-21.04.2017
• BĚLOHRADSKÝ, P.; SKRYJA, P.; HUDÁK, I.; JÍCHA, J.:
  The experimental study of the gas staging in the combination with the internal flue gas recirculation on combustion parameters,
  Proceedings of the 8th European Combustion Meeting, pp.396-401, ISBN 978-953-59504-1-7, (2017), Adria Section of the Combustion Institute (ASCI)
  conference paper
  akce: 8th European Combustion Meeting, Dubrovnik, 18.04.2017-21.04.2017
• SKRYJA, P.; BĚLOHRADSKÝ, P.; HUDÁK, I.; JÍCHA, J.:
  The Utilization of Pyrolysis Fuel in Industrial Burner,
  Proceedings of the 8th European Combustion Meeting, pp.463-468, ISBN 978-953-59504-1-7, (2017), 8th european
  conference paper
  akce: 8th European Combustion Meeting, Dubrovnik, 18.04.2017-21.04.2017
• HUDÁK, I.; BERANOVÁ, D.; SKRYJA, P.; BĚLOHRADSKÝ, P.:
  DEHYDRATACE ENERGOSÁDROVCE V POLOPROVOZU,
  Recenzovaný sborník příspěvků mezinárodní vědecké konference MMK 2016, pp.1377-1383, ISBN 978-80-87952-17-7, (2016), MAGNANIMITAS
  conference paper
  akce: Mezinárodní Masarykova konference pro doktorandy a mladé vědecké pracovníky 2016, Hradec Králové, 12.12.2016-16.12.2016
• SKRYJA, P.; BĚLOHRADSKÝ, P.; HUDÁK, I.:
  Spalování dehtových topných olejů
  summary research report - contract. research
• SKRYJA, P.; KROPÁČ, J.; ZEJDA, V.:
  Posouzení možností produkce energií pro technologii HYDAL
  summary research report - contract. research
• SKRYJA, P.:
  Studie možnosti spalování suspenzí odpadních olejů
  summary research report - contract. research
• JUŘENA, T.; BĚLOHRADSKÝ, P.; SKRYJA, P.; HUDÁK, I.:
  Numerical Modelling of Combustion in 1.5 Mw Low-nox Burner,
  Chemical Engineering Transactions, pp.1261-1266, ISBN 978-88-95608-42-6, (2016), Aidic Servizi, S.r.l.
  conference paper
  akce: 19th Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction (PRES 2016), Praha, 27.08.2016-31.08.2016
• SKRYJA, P.; BĚLOHRADSKÝ, P.; HUDÁK, I.:
  Spalování lanolinu a směsi prachu s vlnou.
  summary research report - contract. research
• BRUMMER, V.; JECHA, D.; LEŠTINSKÝ, P.; SKRYJA, P.; GREGOR, J.; STEHLÍK, P.:
  The treatment of waste gas from fertilizer production - An industrial case study of long term removing particulate matter with a pilot unit, Elsevier
  journal article in Web of Science
• JECHA, D.; BRUMMER, V.; SKRYJA, P.; STEHLÍK, P.:
  Měření emisí VOC a CO v proudu odpadního plynu z výroby kyseliny akrylové,
  CHEMagazín, Vol.XXV (2015), (2015), No.6, pp.8-11, ISSN 1210-7409, Chemagazin
  journal article - other
• BĚLOHRADSKÝ, P.; SKRYJA, P.; HUDÁK, I.:
  Intenzifikace spalovacího procesu vysoce čistým kyslíkem,
  All for Power, Vol.9, (2015), No.5, pp.92-95, ISSN 1802-8535, AF POWER agency a.s.
  journal article - other
• BĚLOHRADSKÝ, P.; SKRYJA, P.; HUDÁK, I.:
  Snižování emisí NOx u automatického blokového hořáku optimalizací jeho geometrie
  conference paper
  akce: 62. konference chemického a procesního inženýrství, Jezerka, 09.11.2015-12.11.2015
• SKRYJA, P.; BĚLOHRADSKÝ, P.; HUDÁK, I.; JUŘENA, T.:
  Experimental Study on NOx Formation in Gas-staged Burner ,
  Proceedings of the 18th International Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction (PRES 2015), pp.997-1002, ISBN 978-88-95608-36-5, (2015), Aidic Servizi S.r.l.
  conference paper
  akce: 18th International Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction (PRES’15), Kuching, 23.08.2015-27.08.2015
• BRUMMER, V.; JECHA, D.; MARTINEC, J.; SKRYJA, P.; STEHLÍK, P.:
  Impact of catalytic oxidation operating conditions on VOC and CO conversions on the Pt-Pd/Al2O3 catalyst ,
  Proceedings of the 18th International Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction (PRES 2015), ISBN 978-88-95608-36-5, (2015), Aidic Servizi S.r.l.
  conference paper
  akce: 18th International Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction (PRES’15), Kuching, 23.08.2015-27.08.2015
• SKRYJA, P.; BĚLOHRADSKÝ, P.:
  Výzkumu spalování procesních plynů
  summary research report - contract. research
• BRUMMER, V.; JECHA, D.; LEŠTINSKÝ, P.; SKRYJA, P.; HUDÁK, I.:
  Pilot plant long-term test of particulate matter (PM) removal from air stream emerging from granulated fertilizers production (stationary source),
  Air Pollution XXIII, pp.419-430, ISBN 978-1-84564-964-7, (2015), WIT Press
  conference paper
  akce: Air Pollution XXIII, Valencia, Spain, 01.06.2015-04.06.2015
• BĚLOHRADSKÝ, P.; SKRYJA, P.; HUDÁK, I.:
  The influence of oxygen-enhanced combustion methods on NOx emissions, in-flame temperatures and heat flux distribution,
  Proceedings of the 10th European Conference on Industrial Furnaces and Boilers, pp.1-11, ISBN 978-972-99309-7-3, (2015)
  conference paper
  akce: 10th European Conference on Industrial Furnaces and Boilers, Porto, 07.04.2015-10.04.2015
• HUDÁK, I.; BĚLOHRADSKÝ, P.; SKRYJA, P.:
  Effects of inert gases on NOx formation in the conventional burner,
  Proceedings of the 7th European Combustion Meeting, pp.187-188, ISBN 978-963-12-1257-0, (2015)
  conference paper
  akce: 7th European Combustion Meeting, Budapest, 30.03.2015-02.04.2015
• Skryja Pavel, Bělohradský Petr:
  The Influence of Bound Nitrogen Content in the Gaseous Fuel on the Formation of NOx
• BĚLOHRADSKÝ, P.; SKRYJA, P.; HUDÁK, I.:
  Experimental Study of Oxygen-enhanced Combustion on NOx emission, In-flame Temperatures and Heat Flux Distribution,
  Proceedings of the 17th Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction PRES 2014, pp.787-792, ISBN 978-88-95608-30-3, (2014), Aidic Servizi S.r.l.
  conference paper
  akce: 17th Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction PRES 2014, Prague, 23.08.2014-27.08.2014
• JECHA, D.; BRUMMER, V.; MARTINEC, J.; SKRYJA, P.; STEHLÍK, P.:
  Optimal Design and Modernization of Small Incineration Unit for VOC Abatement,
  Proceedings of the 17th Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction PRES 2014, pp.739-774, ISBN 978-88-95608-30-3, (2014), Aidic Servizi S.r.l.
  conference paper
  akce: 17th Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction PRES 2014, Prague, 23.08.2014-27.08.2014
• BRUMMER, V.; SKRYJA, P.; JUŘENA, T.; HLAVÁČEK, V.; STEHLÍK, P.:
  Suitable Technological Conditions for Enzymatic Hydrolysis of Waste Paper by Novozymes Enzymes NS50013 and NS50010, Springer Science + Business Media
  journal article in Web of Science
• BĚLOHRADSKÝ, P.; SKRYJA, P.; HUDÁK, I.:
  The influence of oxygen-enhanced combustion methods on NOx emissions, in-flame temperatures and heat flux distribution,
  Proceedings of 35th International Symposium on Combustion, pp.1-1, (2014)
  abstract
  akce: 35th International Symposium on Combustion, San Francisco, 03.08.2014-08.08.2014
• BĚLOHRADSKÝ, P.; SKRYJA, P.; HUDÁK, I.:
  Experimental study on the influence of oxygen content in the combustion air on the combustion characteristics, Elsevier LtD.
  journal article in Web of Science
• SKRYJA, P.; BĚLOHRADSKÝ, P.:
  Dual oil-gas burner,
  Joint Meeting - Franch and Italian Section IFRF and The Combustion Institute, pp.64-64, ISBN 978-88-88104-16-4, (2014), Associazione Sezione Italiana del Combustion Institut
  conference paper
  akce: Joint Meeting French and Italian Sections IFRF and The Combustion Institute, Pisa, 23.04.2014-24.04.2014
• HUDÁK, I.; BĚLOHRADSKÝ, P.; SKRYJA, P.:
  Investigation of oxygen-enhanced combustion method on combustion characteristics in non-premixed gaseous flames,
  Joint Meeting French and Italian Sections IFRF and The Combustion Institute, pp.86-86, ISBN 978-88-88104-16-4, (2014), IFRF
  conference paper
  akce: Joint Meeting French and Italian Sections IFRF and The Combustion Institute, Pisa, 23.04.2014-24.04.2014
• LEŠTINSKÝ, P.; BRUMMER, V.; JECHA, D.; SKRYJA, P.; STEHLÍK, P.:
  Design of catalytic oxidation unit for elimination of VOC and CO
  journal article in Web of Science
• JECHA, D.; BRUMMER, V.; LEŠTINSKÝ, P.; SKRYJA, P.:
  Návrh multifunkční poloprovozní jednotky pro snižování polutantů z odpadního plynu,
  CHISA 2013 - plné texty příspěvků, pp.B 4.3-B 4.5, ISBN 978-80-02-02500-9, (2013), ČSCHI
  conference paper
  akce: 60. konference chemického a procesního inženýrství, Srní, 14.10.2013-17.10.2013
• BĚLOHRADSKÝ, P.; SKRYJA, P.; HUDÁK, I.:
  Posouzení vlivu vyšší koncentrace kyslíku ve spalovacím vzduchu (> 21 %) na charakteristické parametry spalování zemního plynu,
  Sborník CHISA 2013, Plné texty příspěvků, pp.1-7, ISBN 978-80-02-02500-9, (2013), ČSCHI
  conference paper
  akce: 60. konference chemického a procesního inženýrství, Srní, 14.10.2013-17.10.2013
• SKRYJA, P.; MAHMOUD, M.:
  Kombinovaný olejo-plynový hořák
  miscellaneous
• BĚLOHRADSKÝ, P.; SKRYJA, P.:
  Experimental study on the influence of oxygen fraction in the combustion air on the combustion characteristics,
  Chemical Engineering Transactions, Vol.35, (2013), No.1, pp.1147-1152, ISSN 1974-9791, AIDIC Servizi S.r.l.
  journal article - other
• SKRYJA, P.; BĚLOHRADSKÝ, P.; HUDÁK, I.:
  Zkouška spalování černouhelné suspenze
  summary research report - contract. research
• BRUMMER, V.; JECHA, D.; SKRYJA, P.; LEŠTINSKÝ, P.:
  Design of multifunctional pilot unit for waste gases pollutants reduction,
  MCS-8 Eighth mediterranean combustion symposium Book of Abstracts, pp.PFC-1 1-PFC-1 11, (2013)
  conference proceedings
  akce: Eighth Mediterranean Combustion Symposium, Ilica Hotel, Çesme, 08.09.2013-13.09.2013
• SKRYJA, P.; BĚLOHRADSKÝ, P.:
  Stanovení místa nástřiku ČD a geometrie trysky parního kotle K9
  summary research report - contract. research
• Brummer Vladimír, Jecha David, Martinec Jan, Skryja Pavel:
  Stress test of pilot unit for removal of VOCs and CO by catalytic oxidation
• Bělohradský Petr, Skryja Pavel, Hudák Igor:
  Experimental Investigation of Characteristic Parameters of Combustion of Natural Gas with Oxygen-Enriched Air
• Skryja Pavel, Bělohradský Petr:
  Influence of the ammonia in the gaseous fuel on the production of NOx
• JECHA, D.; BRUMMER, V.; MARTINEC, J.; SKRYJA, P.:
  Exchange of incineration unit by catalytic oxidation unit for VOC removal,
  1st International Conference on Chemical Technology, pp.C3.2-1-C3.2-6, ISBN 978-80-86238-37-1, (2013), ČSPCH
  conference paper
  akce: 1st International Conference on Chemical Technology, Mikulov, 08.04.2013-10.04.2013
• SKRYJA, P.:
  Návrh spalování zemního plynu v procesní ohřevné peci
  summary research report - contract. research
• SKRYJA, P.; VAŘEKA, M.:
  Technologie spalování procesního plynu parního reformingu hořáky GIS 1360T
  summary research report - contract. research
• JECHA, D.; BRUMMER, V.; SKRYJA, P.; JEDLIČKA, F.:
  Studie poloprovozní jednotky technologie katalytické oxidace na jednotce 2U-600, část 1/2
  summary research report - contract. research
• JECHA, D.; BRUMMER, V.; SKRYJA, P.:
  Studie poloprovozní jednotky technologie katalytické oxidace na jednotce 2U-600, část 2/2
  summary research report - contract. research
• NEJEZCHLEB, R.; SKRYJA, P.:
  Obstacles in the Utilization of Biodiesel as the Fuel in Small Stationary Combustion Units,
  Chemical Engineering Transactions, Vol.29, (2012), No.2, pp.961-966, ISSN 1974-9791, AIDIC Servizi S.r.l.
  journal article - other
• KERMES, V.; BĚLOHRADSKÝ, P.; STEHLÍK, P.; SKRYJA, P.:
  Power Burners,
  Industrial Combustion Testing, pp.411-427, ISBN 978-1-4200-8528-0, (2010), CRC Press, Taylor and Francis Group, LLC
  book chapter
• KERMES, V.; SKRYJA, P.; STEHLÍK, P.:
  Up to date experimental facility for testing low-NOx burners,
  10th Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction PRES 2007, pp.1-6, ISBN 88-901915-4-6, (2007)
  conference paper
  akce: 10th Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction PRES 2007, Ischia Porto, 24.06.2007-27.06.2007
• HÁJEK, J.; SKRYJA, P.; ORAL, J.; STEHLÍK, P.:
  Příprava výpočetní sítě a zpracování výsledku výpočtu procesního zařízení programem CFD,
  VZ-EU-UPEI-2002/06, (2002)
  report

List of publications at Portal BUT

Abstracts of most important papers:

• BĚLOHRADSKÝ, P.; SKRYJA, P.:
  Experimental study on the influence of oxygen fraction in the combustion air on the combustion characteristics,
  Chemical Engineering Transactions, Vol.35, (2013), No.1, pp.1147-1152, ISSN 1974-9791, AIDIC Servizi S.r.l.
  journal article - other
  The presented paper was focused on the experimental investigation of a promising combustion technology, namely the oxygen-enhanced combustion (OEC). This technology is used in those industrial heating applications that require increased productivity, higher heat transfer efficiency, improved flame characteristics, reduced equipment cost and last but not least improved product quality. However, there are potential problems associated with the use of OEC if the system is not properly designed, e.g. refractory or burner damage, non-uniform heating and/or increased pollutant emissions. The experimental study of OEC was carried out at the large-scale burner testing facility that enables to test the gaseous fuel burners, the liquid fuel burners and the combined burners up to the thermal input of 1800 kW. The combustion tests were performed with the experimental low-NOx type burner, namely the two-gas-staged burner. The oxygen content in the combustion air was increased by means of the oxygen injection directly into the incoming airstream before entering the burner. The aim of the tests was to assess the impact of oxidizer composition (the volume fraction of oxygen in the combustion air), burner thermal input and gas-staging on the characteristic combustion parameters including the concentration of nitrogen oxides in flue gas, the flue gas temperature, the heat flux to the combustion chamber wall, and lastly the flame stability and its dimensions.
• Bělohradský Petr, Skryja Pavel, Hudák Igor:
  Experimental Investigation of Characteristic Parameters of Combustion of Natural Gas with Oxygen-Enriched Air
  The aim of the present study was to investigate the performance of two oxygen-enhanced combustion methods, namely the premix enrichment and the air-oxy/fuel combustion. The observed combustion parameters included the concentration of nitrogen oxides in flue gas, the heat flux distribution lengthwise the combustion chamber and the flame pattern. It was observed that NOx emission is significantly lower when the air-oxy/fuel method is used compared to the premix enrichment method. Higher oxygen concentrations resulted in higher heating intensity.
• Skryja Pavel, Bělohradský Petr:
  Influence of the ammonia in the gaseous fuel on the production of NOx
  This paper describes the experience with the combustion of a gaseous fuel that contains the ammonia in the low concentrations as one of its components. The main aim of the research was to study the influence of 0–1.8 vol. % ammonia concentration in the fuel on the formation of NOx. Two types of burners were investigated. Based on the balance recalculation it was revealed that 25 % and 15 % of the chemically bound nitrogen in the ammonia is oxidized to nitrogen monoxide when the premixed air-staged burner and the non-premixed fuel-staged burner were used, respectively.
• NEJEZCHLEB, R.; SKRYJA, P.:
  Obstacles in the Utilization of Biodiesel as the Fuel in Small Stationary Combustion Units,
  Chemical Engineering Transactions, Vol.29, (2012), No.2, pp.961-966, ISSN 1974-9791, AIDIC Servizi S.r.l.
  journal article - other
  The presented paper deals with the obstacles in the utilization of biodiesel in small stationary combustion units. The aim of the paper is to discuss the technical problems related to the combustion of biodiesel by means of two different types of atomizers, namely the pneumatic effervescent atomizer and the pressure spill-return swirl atomizer. The technical problems are described based on the comparative combustion tests that were carried out at the nominal heat duty about 1000 kW. The tests were carried out at the experimental burner testing facility, whose main apparatus is the water-cooled combustion chamber. The first part of the paper describes the influence of the physical-chemical properties of the methylester of rape seed oil (RME) on the quality of combustion. The properties of RME are compared to the physical-chemical properties of the most commonly used standardized liquid fuel in small stationary combustion units, namely extra light heating oil (ELHO). There were identified two properties of the RME, namely the flash point and the shape of distillation curve, which cause the problems with the combustion stability by the application of both mechanisms of the atomization. The results of the combustion tests showed that it is required to preheat the RME at the temperature higher than 60 stC and it is useful to use a small gas stabilization burner to stabilize the spray ignition in close proximity of the atomizer head. The next increase of the preheating temperature above 80 stC leads to the significant increase in nitrogen oxides formation, however simultaneously, the stability of the flame becomes better and the carbon monoxide formation decreases. The negligible difference between ELHO and RME was observed in the heat transfer rate to the water-cooled chamber shell. On the other hand, the problems related to the RME spray drops evaporation causes that the maximum heat transfer shifts in the direction further from the burner mouth. The second part of the paper is aimed at the assessment of the possibility of the substitution of the ELHO by RME or some of the vegetable oils from the general view. It may be concluded that the requirements on the RME combustion are evidently harder than for ELHO. It mainly concerns the quality of atomization and the quality of mixing of fuel drops with the oxidizer. Generally speaking it would be better to focus the research on the development of the pressure atomizer and on the decrease of the burner nominal heat duty to the range between 200 and 500 kW. This fact is related to the possibility to utilize these fuels at the decentralized units and/or as the stabilization fuel during the combustion of renewable solid fuels or waste. It is not recommended to use renewable liquid fuels as the main fuel at the large stationary combustion units since it could cause their shortage in other areas of economy.
• KERMES, V.; BĚLOHRADSKÝ, P.; STEHLÍK, P.; SKRYJA, P.:
  Power Burners,
  Industrial Combustion Testing, pp.411-427, ISBN 978-1-4200-8528-0, (2010), CRC Press, Taylor and Francis Group, LLC
  book chapter
  The chapter deals with the area of power burners. The power burners can be categorized according to several parameters, such as the type of supply of combustion air, type of combusted fuel, methods for NOx reduction, and so forth. Next the text deals with test planning, carrying out the tests and evaluation of measured data.