Search Results - "Juřena, Tomáš"

CFD Simulations of Packed-Bed Combustion: Accounting for Irregularities in Particle Orientation in the Estimation of Bed Radiative Properties by Jirí Strouhal, Tomáš Jurena

“…Modelling of packed-bed combustion includes the problem of modelling the radiative heat transfer. Thermal radiation significantly contributes to heat transfer…”
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Fouling Simulations of a Passive Part of the Testing Combustion Facility by Jirí Strouhal, Tomáš Jurena, Zdenek Jegla

“…Results from the previous work of Strouhal et al. (2020) suggest that the used CFD fouling model together with user-implemented subroutines is not sufficient…”
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CFD modelling of an initial powdery layer on cooled tubular surfaces by Strouhal, Jiří, Juřena, Tomáš, Jegla, Zdeněk

“…Fouling in convective parts of boilers is typical of the deposition of solid particles and condensable inorganic vapours. Particle sticking is caused mainly by…”
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Modelling of 1 MW Solid Biomass Combustor: Simplified Balance-Based Bed Model Coupled with Freeboard CFD Simulation by J. Hájek, T. Jurena

“…This paper evaluates the combustion process of solid biomass fuel in a 1 MW grate furnace by using data obtained from a real unit and mathematical modelling…”
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Numerical simulations and validation of single- and two-phase flow in a stirred lab-scale photobioreactor by Rebej, Miroslav, Juřena, Tomáš, Vondál, Jiří, Fuente Herraiz, David, Červený, Jan, Jegla, Zdeněk

“…A particle image velocimetry (PIV) technique was used to measure velocity fields of single- and multi-phase fluid flow in a stirred, flat-panel photobioreactor…”
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What the Combustion Engineer Gains from CFD Modeling: Gas Furnace by Hájek, Jiří, Vondál, Jiří, Juřena, Tomáš, Sláma, Jaroslav

“…Combustion engineers require correct predictions of trends, especially in cases when computational fluid dynamics is applied for troubleshooting, scale‐up, or…”
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New numerical treatment of source term in convective transfer of heat between fluid and porous solid matrix by Hajek, Jiri, Jurena, Tomas

“…Purpose – The purpose of this paper is to report a novel formulation of convective heat transfer source term for the case of flow through porous medium…”
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Numerical Modelling of Combustion in 1.5 MW Low-NOx Burner by T. Jurena, P. Belohradsky, P. Skryja, I. Hudák

“…Results from CFD simulations of swirling non-premixed gas flame using a low-NOx gas burner are presented and compared to experimental data measured during a…”
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Experimental Study on NOx Formation in Gas-staged Burner by P. Skryja, P. Belohradský, I. Hudák, T. Jurena

“…The paper deals with the experimental investigation of combustion operating parameters and burner’s constructional parameters on the formation of nitrogen…”
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Mathematical Modelling of Grate Combustion: Bed and Freeboard Coupling Issues by T. Jurena, J. Hajek

“…This paper is focused on issues related to coupling of a fuel bed model with the freeboard as one of methods to simulate solid fuel combustion in grate…”
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Energy Considerations in CFD Modelling of Biomass Combustion in an Experimental Fixed-bed Reactor by T. Jurena, J. Hajek

“…Abstract preview not available - see full-text PDF article…”
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Simulation of Multiphase Flow in Stirred Tank of Nonstandard Design by T. Jurena, M. Dohnal, J. Hajek

“…Stirred tanks are commonly utilized in food, pharmaceutical and chemical industries. Most engineering applications make use of more or less standard design of…”
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Mathematical Modelling of Biomass Combustion: Packing Conditions Issues by T. Jurena, J. Hájek

“…Abstract preview not available - see full-text PDF article…”
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SIMULATION OF BIOMASS DRYING IN FIXED BED OF EXPERIMENTAL GRATE COMBUSTION REACTOR by T. Jurena, M. Recman, J. Hajek

“…Abstract preview not available - see full-text PDF article…”
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Enzymatic hydrolysis of pretreated waste paper – Source of raw material for production of liquid biofuels by Brummer, Vladimir, Jurena, Tomas, Hlavacek, Viliam, Omelkova, Jirina, Bebar, Ladislav, Gabriel, Petr, Stehlik, Petr

“…[Display omitted] •Basic quantitative compositional analysis of waste paper.•Cardboard was best from tested types of waste papers for enzymatic…”
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Suitable Technological Conditions for Enzymatic Hydrolysis of Waste Paper by Novozymes® Enzymes NS50013 and NS50010 by Brummer, Vladimir, Skryja, Pavel, Jurena, Tomas, Hlavacek, Viliam, Stehlik, Petr

“…Waste paper belongs to a group of quantitatively the most produced waste types. Enzymatic hydrolysis is becoming a suitable way to treat this type of waste and…”
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Numerical Simulations of Mass Transfer Prediction in a Photobioreactor by Miroslav Rebej, Jiri Vondal, Tomas Jurena, Vladimír Brummer, Zdenek Jegla, Martin Nad

“…The paper deals with the possibility of using flue gas as a nutrient source for microalgae cultivation in a bubble column photobioreactor. The experiments…”
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Suitable Technological Conditions for Enzymatic Hydrolysis of Waste Paper by Novozymes registered Enzymes NS50013 and NS50010 by Brummer, Vladimir, Skryja, Pavel, Jurena, Tomas, Hlavacek, Viliam, Stehlik, Petr

“…Waste paper belongs to a group of quantitatively the most produced waste types. Enzymatic hydrolysis is becoming a suitable way to treat this type of waste and…”
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CFD Process Modeling of the Industrial Calcination of Diatomite by Hajek, Jiri, Jurena, Tomas, Baier, Bernhard, Bagherzadeh, Arash, Schnick, Tom, Smejkal, Quido

“…Calcination of diatomite is an expensive process frequently resulting in products with unpredictable structure. Alternatively, calcination in swirling flow is…”
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