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	Wavy Films Flow: Linear Stability and Evolution Wein, Ondřej ; Tihon, Jaroslav The Orr-Sommerfeld (OS)problem is analyzed in terms of the relation between complex-valued wavenumber alfa and celerity c. For the long-wave regular branch, Taylor series to c(alfa) is found to be of limited use, as its convergence radius pi is to small. Wave characteristics of the conception region, including besides c(alfa) also the wall shear rate impendance q , are obtained for the maximum spatial growth rate scenarioo by solving the OS problem numerically. Detailed record
	Measurement of Temperature Fields Using Thermochromic Liquid Crystals Vejražka, Jiří ; Marty, Ph. ; Sobolík, Václav The method described in has become standard for measurements using liquid crystals. Detailed record
	Emissions of Toxic Components from Firing of Used Oils in a 102 kW Burner Boiler Tydlitát, Vratislav ; Janota, J. ; Pekárek, Vladimír ; Punčochář, Miroslav Firing of used motor oils in burner-type boilers does not produce emissions of the investigated substances which would exceed the current emission limits, except for a small deviation in the content of chlorine. The measurements unexpectedly showed that the new limit for PCDD/F to be effected in the Czech Republic since April 2002 is only slightly exceeded. Detailed record
	Activity of Calcined Hydrotalcite-like Compounds in Catalitic Combustion of Volatile Organic Compounds (VOC) Čuba, Pavel ; Kovanda, F. ; Jirátová, Květa This article deals with activity of calcined hydrotalcite-like compounds in catalitic combustion of volatile organic compounds (VOC). Detailed record
	Release and Partition of Selected Alkali Metals and Heavy Metals in Pressurized Substoichiometric Combustion of Coals Čermák, Jiří ; Svoboda, Karel ; Pohořelý, Michael In our contribution the comparison of pressurized bed substoichiometric combustion of three various kinds of subbituminous coal is presented. Detailed record
	Dynamics of Absorption in Co-Current Packed Column under Periodically Variable Conditions Vychodilová, Hana ; Staněk, Vladimír ; Akramov, T. ; Jiřičný, Vladimír This article deals with dynamics of absorption in co-current packed column under periodically variable conditions. . Detailed record
	The Behavior of a Counter-Current Packed Bed Column Undergoing Flooding. The Behavior of a Counter-Current Packed Bed Column Undergoing Flooding. The Behavior of a Counter-Current Packed Bed Column Undergoing Flooding Svoboda, Petr ; Staněk, Vladimír ; Jiřičný, Vladimír The lecture present results of an experimental study of the hydrodynamics of a counter-current pack bed column irrigated by water and passed by air. The experimental setup developed for this purpose enables measurement of overall pressure drop, pressure profiles along the height of the packed section and the holdup of liquid retained in the packing and (if applicableú also on top of the packed section. The experiments are controlled by PC using Labview software and cover transient regime of the hydrodynamics of the column induced by variation of inlet gas and/or liquid rates. In focus of this lecture are experiments when the column under transient conditions reachers or even exceeds the flooding point. Detailed record
	Operation of a Bubble Bed in Series with a Trickle Bed Ondráček, Jakub ; Jiřičný, Vladimír ; Staněk, Vladimír This article deals with operation of a bubble bed in series with a trickle bed. Detailed record
	Supercritical Fluid Extraction and Characterisation of Urtica Dioica L. Leaves Pigments Sajfrtová, Marie ; Sovová, Helena ; Bártlová, Milena ; Opletal, L. Extraction and fractionation of green and yellow pigments from stinging nettle leaves was studied using ethanol-modified carbon dioxide as a solvent. The extracts were analysed by means of HPLC and RP-HPLC systems. The effect of operation conditions was analysed in a series of experiments at pressures from 20 MPa to 28 MPa, temperatures between 25 °C and 60 °C, and ethanol concentration in CO2 between 0 and 7.4 wt.%. The main result was that the best conditions for the supercritical fluid extraction of pigments were ethanol concentration in CO2 4.5 - 7.4 wt.%, temperature 40°C and pressure 28MPa and that degradation of pigments was eliminated with decrease of temperature of micrometer valve and addition of small amount of antioxidant to ethanol. Detailed record
	Evaluation of Extraction Curves Obtained by Supercritical Fluid Extraction from Plant Materials Sovová, Helena Evaluation of extraction curves is based on modelling the extraction process. Various models have been published and used to evaluate experimental data in the last years. A combined model, closely related to the results of ReverchonŽs research group, is presented in this study. Dimensionless form of the model is solved by numerical integration and also analytical approximative solutions are presented. Experimental extraction curves from the literature were analysed using the model for supercritical fluid extraction of both essential oils and fatty oils. Detailed record

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