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Lecturer(s)
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Svoboda Petr, prof. Ing. Ph.D.
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Course content
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- Filtration. Suspension. Filtration machine. Cake filtration. The driving force of filtration. Filter cake washing. Drying. Preparing the filter for further filtration. Batch and continuous filtration. Filter partitions and types of filters. - Weight and volume balance during filtration. Cake filtration kinetics. Calculation of filter constants. Filtration at constant speed. Filtration at a constant pressure difference. - Enthalpy balance. Forms of energy. Energy related to temperature change. Energy associated with a change of state. Chemical energy associated with a change in composition. - The first theorem of thermodynamics - balance of a closed system. Reference state. Endothermic and exothermic chemical reactions. Specific heat capacity. - Distillation and rectification. The mole fraction of the more volatile component in the vapor phase. Liquid-vapor equilibrium calculation. Isobaric diagram (temperature - composition), isobaric distribution diagram (molar fractions). - Azeotropic mixture. Vapor tension Raoult's law. Relative volatility. Antoine's equation. Boiling point. Formation of saturated steam. Condensation temperature. Iterative solution of a nonlinear equation. Obtaining data from tables using interpolation or regression. - Settling. Forces acting on a particle. Settling speed. Archimedes' criterion. - Mixing. Mechanical, pneumatic, hydraulic mixing. Static mixers. Mixing efficiency. Slow-speed and high-speed mixers. - Evaporators. Increasing the concentration of non-volatile components. Thickening of solutions. Robert and Kestner evaporators. Arrangement - co-current or counter-current. - Extraction. Extraction of medicinal substances from plants. Liquid extraction. Extract - raffinate. - Absorption. Washing of gaseous impurities into the solvent. Carbonation of drinks with carbon dioxide. - Drying. Drying kinetics. Contact, microwave, infrared dryers. Critical moisture content of the material. Drying speed. - Rate of diffusion. Diffusion coefficient. The rate of change of concentration along the direction of diffusion - the driving force of diffusion. - Concentration gradient. Fick's first and second laws.
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Learning activities and teaching methods
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Monologic (Exposition, lecture, briefing), Dialogic (Discussion, conversation, brainstorming), Practice exercises, Individual work of students
- Preparation for examination
- 210 hours per semester
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| prerequisite |
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| Knowledge |
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| Knowledge of mathematics and physics. |
| Knowledge of mathematics and physics. |
| learning outcomes |
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| calculation of parameters for constant velocity or constant vacuum filtration |
| calculation of parameters for constant velocity or constant vacuum filtration |
| enthalpy balance calculations |
| enthalpy balance calculations |
| distillation - liquid-vapor equilibrium, quantitative evaluation of parameters |
| distillation - liquid-vapor equilibrium, quantitative evaluation of parameters |
| numerical solution of complex equations for distillation and diffusion |
| numerical solution of complex equations for distillation and diffusion |
| evaluation of extraction kinetics |
| evaluation of extraction kinetics |
| Skills |
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| performing a sedimentation experiment - calculation of the theoretical sedimentation rate |
| performing a sedimentation experiment - calculation of the theoretical sedimentation rate |
| diffusion - processing of data from the diffusion of leather immersed in NaCl |
| diffusion - processing of data from the diffusion of leather immersed in NaCl |
| measuring thermal conductivity - evaluation of the data in Excel using the "Solver" function |
| measuring thermal conductivity - evaluation of the data in Excel using the "Solver" function |
| drying - regression of the drying curve with the model equation |
| drying - regression of the drying curve with the model equation |
| filtration - calculation of filtration constants for different vacuum pressures |
| filtration - calculation of filtration constants for different vacuum pressures |
| teaching methods |
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| Knowledge |
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| Dialogic (Discussion, conversation, brainstorming) |
| Dialogic (Discussion, conversation, brainstorming) |
| Monologic (Exposition, lecture, briefing) |
| Monologic (Exposition, lecture, briefing) |
| Skills |
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| Individual work of students |
| Individual work of students |
| Practice exercises |
| Practice exercises |
| assessment methods |
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| Knowledge |
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| Composite examination (Written part + oral part) |
| Composite examination (Written part + oral part) |
| Grade (Using a grade system) |
| Grade (Using a grade system) |
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Recommended literature
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Hasal, P., Schreiber, I., Šnita, D. Chemické inženýrství I.. Praha, 2007. ISBN 978-80-7080-002-7.
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Míka, V. a kol. Chemické inženýrství 1A, 1B. Praha : VŠCHT, 1996. ISBN 80-7080-164-6.
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Oldřich Holeček. Chemicko-inženýrské tabulky. Praha, 2007. ISBN 978-80-7080-444-5.
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Schreiberová, L. Chemické inženýrství I.. Praha, 2011. ISBN 978-80-7080-778-1.
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ŠNITA, D. a kol. Chemické inženýrství I,. Praha, 2005. ISBN 80-7080-589-7.
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Yamaguchi, Hiroshi. Engineering fluid mechanics. Dordrecht : Springer, 2008. ISBN 978-1-4020-6741-9.
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