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Application of hydrodynamic cavitation in brewing
Štěrba, Jiří
2022 - English
The aim of this work is to apply these advantages in the brewery industry. In the field of beer brewing, we would like to investigate several phenomena, such as the isomerization of bitter hop acids, the reduction of gluten concentration or the cell-walls breakdown.\n
Keywords:
hydrodynamic cavitation; brewery industry; Venturi jet system
Available in a digital repository NRGL
Application of hydrodynamic cavitation in brewing
The aim of this work is to apply these advantages in the brewery industry. In the field of beer brewing, we would like to investigate several phenomena, such as the isomerization of bitter hop acids, ...
Vertical distribution of black carbon (BC)
Julaha, Kajal
2022 - English
Black Carbon (BC) is one of the leading contributors affecting our climate system. Absorbing at all visible wavelengths results in a warmer environment and thus has been considered the second most important contributor to global warming after carbon dioxide. The primary sources of BC aerosol are the incomplete combustion of fossil fuels and biomass burning. However, the composition of atmospheric aerosols varies with the height above the Earth’s surface. Recent studies have shown significant uncertainties (about 25%) in model simulations of the vertical BC distribution, both on the regional and global levels. BC’s vertical transport is suggested to be one area where the models still differ significantly,4,5 highlighting further investigation.
Keywords:
black carbon; fossil fuels and biomass; atmospheric aerosol
Available in a digital repository NRGL
Vertical distribution of black carbon (BC)
Black Carbon (BC) is one of the leading contributors affecting our climate system. Absorbing at all visible wavelengths results in a warmer environment and thus has been considered the second most ...
Continuous electrocoagulation of Chlorella vulgaris in a novel channel-flow reactor
Lucáková, Simona
2022 - English
In our laboratory, we employed an electrocoagulation process with iron sacrificial anode leading to the separation of Chlorella vulgaris cells with high efficiency and at the same time acceptable low contamination of separated biomass by iron. Comparing to only centrifugation, the total energy costs of harvesting using electrocoagulation as a pre-concentration step prior to centrifugation were reduced by more than 80%. After extensive study of the influence of relevant process parameters.
Keywords:
chlorella vulgaris; electrocoagulation; biomass; iron
Available in a digital repository NRGL
Continuous electrocoagulation of Chlorella vulgaris in a novel channel-flow reactor
In our laboratory, we employed an electrocoagulation process with iron sacrificial anode leading to the separation of Chlorella vulgaris cells with high efficiency and at the same time acceptable low ...
Tetracycline degradation using catalysts of platinum coated over CeO2 and CeO2ZrO2
Bourassi, Mahdi
2022 - English
These works showed that, by adding well defined nanoparticles into ionic liquids, it is possible to tune or/and enhance their thermophysical properties and make them more suitable for electrical and thermal energy storage, and heat transfer applications.
Keywords:
catalytic experiments; tetracycline; water depollution
Available in a digital repository NRGL
Tetracycline degradation using catalysts of platinum coated over CeO2 and CeO2ZrO2
These works showed that, by adding well defined nanoparticles into ionic liquids, it is possible to tune or/and enhance their thermophysical properties and make them more suitable for electrical and ...
Ambient organic aerosol origin at rural background site in the Czech Republic
Lhotka, Radek
2022 - English
Source apportionment of organic aerosols (OA) at background sites is one of the important tasks of the current air quality protection. OA are emitted directly from primary sources or formed in the atmosphere via the oxidation of gas-phase precursors with subsequent partitioning resulting in low-volatility products into the particle phase.
Keywords:
organic aerosol; air quality protection; ural background site
Available in a digital repository NRGL
Ambient organic aerosol origin at rural background site in the Czech Republic
Source apportionment of organic aerosols (OA) at background sites is one of the important tasks of the current air quality protection. OA are emitted directly from primary sources or formed in the ...
Physicochemical Properties and Origin of PM1 Measured at a Rural Background Site
Pokorná, Petra; Zíková, Naděžda; Vodička, Petr; Lhotka, Radek; Mbengue, Saliou; Holubová Šmejkalová, A.; Riffault, V.; Ondráček, Jakub; Schwarz, Jaroslav; Ždímal, Vladimír
2022 - English
This study assesses the variability of organic aerosol (OA) sources monitored at the rural background site Frýdlant. Non-refractory PM1 was evaluated in two seasons of\n2021. The positive matrix factorization with the multi-linear engine was used to determine the sources of OA at Frýdlant site, with four factors resolved both in winter and\nsummer.
Keywords:
organic aerosols; positive matrix factorization with multi-linear engine; non-refractive aerosol
Available in a digital repository NRGL
Physicochemical Properties and Origin of PM1 Measured at a Rural Background Site
This study assesses the variability of organic aerosol (OA) sources monitored at the rural background site Frýdlant. Non-refractory PM1 was evaluated in two seasons of\n2021. The positive matrix ...
An Improved Method for Calculation of the Wet Particle Diameter and tha Kappa Parameters from the CCN Data
Wagner, Zdeněk; Mishra, Gaurav; Moravec, Pavel; Zíková, Naděžda
2022 - English
The study of particle size distribution and hygroscopic growth is important for several reasons. Particle diameter is available experimentally, but the relationship of \nhygroscopic growth to cloud condensation nuclei (CCN) and AMS data can be modeled mathematically. In this paper, we present an improved algorithm for calculating the wet \nparticle diameter and the κ parameter that is faster, more accurate, and more reliable than the algorithm used by other authors.\n
Keywords:
critical diameter; wet particle diameter; CCN
Available in a digital repository NRGL
An Improved Method for Calculation of the Wet Particle Diameter and tha Kappa Parameters from the CCN Data
The study of particle size distribution and hygroscopic growth is important for several reasons. Particle diameter is available experimentally, but the relationship of \nhygroscopic growth to cloud ...
Synthesis of biobased ionic liquids from the choline for lignin derivatization
Souvenir Zafindrajaona, Mahasoa-Salina
2022 - English
The presentation will be dedicated to the description of the syntheses and the characterization of the new bolaform ILs. The further work which will be realized in Prague will be also presented and discussed in relation to the lignin depolymerisation purpose.
Keywords:
lignin; depolymerisation; ionic liquids
Available in a digital repository NRGL
Synthesis of biobased ionic liquids from the choline for lignin derivatization
The presentation will be dedicated to the description of the syntheses and the characterization of the new bolaform ILs. The further work which will be realized in Prague will be also presented and ...
The study on stability of ionanofluids, change in heat capacity of ionanofluids over a long period of time
Parmar, Nirmal
2022 - English
These works showed that, by adding well defined nanoparticles into ionic liquids, it is possible to tune or/and enhance\ntheir thermophysical properties and make them more suitable for electrical and thermal energy storage, and heat transfer applications.
Keywords:
nanoparticles; ionic liquids; ionanofluids
Available in a digital repository NRGL
The study on stability of ionanofluids, change in heat capacity of ionanofluids over a long period of time
These works showed that, by adding well defined nanoparticles into ionic liquids, it is possible to tune or/and enhance\ntheir thermophysical properties and make them more suitable for electrical and ...
Utilization of solid sorbents for high temperature removal of halogenated compounds from pyrolysis of waste plastic
Šrámek, Vít
2022 - English
This work focuses on high temperature removal of halogenated compounds in model mixture with hydrocarbons and other compounds. The study was performed in laboratory apparatus under controlled temperature and gaseous mixture composition.\n
Keywords:
halogenated compounds; solid sorbents; pyrolysis of waste plastic
Available in a digital repository NRGL
Utilization of solid sorbents for high temperature removal of halogenated compounds from pyrolysis of waste plastic
This work focuses on high temperature removal of halogenated compounds in model mixture with hydrocarbons and other compounds. The study was performed in laboratory apparatus under controlled ...
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