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Lecturer(s)
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Mrkvičková Simona, Ing. Ph.D.
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Course content
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1) Introduction to material balances - importance in technology and sustainability, concepts, goals 2) Law of conservation of mass, definition of systems (open, closed, isolated), mass balance 3) Types of material flows - raw materials, products, by-products, waste 4) Balance without chemical reaction - mixing and distribution of streams, calculations 5) Balance with chemical reaction I - stoichiometry, yields, conversions 6) Balance with chemical reaction II - multi-stage processes, multiple reactions, parallel and serial reactions 7) Recycling, bypass, purge - principles of recirculation, loop calculations 8) Component balances - calculations of multiple components in a system, tabular approach 9) Balance during phase changes - evaporation, condensation, drying, distillation 10) Input and output analysis - reverse balance, optimization of material flows 11) Balance in circular economy - case studies (recycling, reuse) 12) Environmental balance - LCA, carbon footprint, E-factor, material intensity 13) Teamwork - practical balance task: assignment, solution proposal, calculation 14) Presentation of team projects, discussion, and summary
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Learning activities and teaching methods
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Lecturing, Dialogic (Discussion, conversation, brainstorming), Simple experiments
- Participation in classes
- 84 hours per semester
- Home preparation for classes
- 40 hours per semester
- Preparation for course credit
- 26 hours per semester
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| prerequisite |
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| Knowledge |
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| Knows the basic principles of mass and energy balances used in technological and environmental systems. |
| Knows the basic principles of mass and energy balances used in technological and environmental systems. |
| Understands the physical and chemical laws that form the basis of balance calculations. |
| Understands the physical and chemical laws that form the basis of balance calculations. |
| Understand the connections between balance calculations and process environmental impacts, including their connection to the principles of sustainable development and the circular economy. |
| Understand the connections between balance calculations and process environmental impacts, including their connection to the principles of sustainable development and the circular economy. |
| To understand typical unit operations and their influence on material and energy flows within technological processes. |
| To understand typical unit operations and their influence on material and energy flows within technological processes. |
| Know basic terminology and concepts from the field of sustainable engineering, such as carbon footprint, ecological efficiency, material intensity, or energy efficiency. |
| Know basic terminology and concepts from the field of sustainable engineering, such as carbon footprint, ecological efficiency, material intensity, or energy efficiency. |
| Skills |
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| Create a material balance for both simple and complex technological processes. |
| Create a material balance for both simple and complex technological processes. |
| Work with units, molar and mass flows, concentrations, and yields. |
| Work with units, molar and mass flows, concentrations, and yields. |
| Analyze raw material consumption and waste production in the context of sustainability and propose improvements. |
| Analyze raw material consumption and waste production in the context of sustainability and propose improvements. |
| Interpret the results of balance calculations in the context of the environmental impacts and sustainability of the given solution. |
| Interpret the results of balance calculations in the context of the environmental impacts and sustainability of the given solution. |
| learning outcomes |
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| Knowledge |
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| calculate the material balance of a simple process with several inputs and outputs |
| calculate the material balance of a simple process with several inputs and outputs |
| convert concentrations (e.g. volume to mass or molar and vice versa) |
| convert concentrations (e.g. volume to mass or molar and vice versa) |
| convert complex units (including Anglo-Saxon) to basic units using SI units |
| convert complex units (including Anglo-Saxon) to basic units using SI units |
| calculate pipe diameter, mass and volume flow rates using Bernoulli's equation and Karman's procedures |
| calculate pipe diameter, mass and volume flow rates using Bernoulli's equation and Karman's procedures |
| calculate the heat transfer coefficient for a variety of geometries and cases |
| calculate the heat transfer coefficient for a variety of geometries and cases |
| calculate the heat transfer through a composite slab and pipe |
| calculate the heat transfer through a composite slab and pipe |
| Skills |
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| measure and evaluate laminar and turbulent flow with increasing fluid flow |
| measure and evaluate laminar and turbulent flow with increasing fluid flow |
| measure and evaluate pump characteristics |
| measure and evaluate pump characteristics |
| measure and evaluate the enthalpy balance of a heat exchanger |
| measure and evaluate the enthalpy balance of a heat exchanger |
| measure and divide the drying curve into different periods |
| measure and divide the drying curve into different periods |
| measure the thermal conductivity of a material by the non-stationary method |
| measure the thermal conductivity of a material by the non-stationary method |
| distil a mixture of 2 liquids and evaluate the concentrations of the vapor and liquid phases |
| distil a mixture of 2 liquids and evaluate the concentrations of the vapor and liquid phases |
| teaching methods |
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| Knowledge |
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| Dialogic (Discussion, conversation, brainstorming) |
| Dialogic (Discussion, conversation, brainstorming) |
| Educational trip |
| Educational trip |
| E-learning |
| E-learning |
| Practice exercises |
| Practice exercises |
| Methods for written tasks (e.g. comprehensive exams, written tests) |
| Methods for written tasks (e.g. comprehensive exams, written tests) |
| Skills |
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| Educational trip |
| Educational trip |
| Practice exercises |
| Practice exercises |
| assessment methods |
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| Knowledge |
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| Grade (Using a grade system) |
| Grade (Using a grade system) |
| Written examination |
| Written examination |
| Analysis of works made by the student (Technical products) |
| Analysis of works made by the student (Technical products) |
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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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Míka, V. a kol. Chemickoinženýrské výpočty I, II. Praha: VŠCHT, 1996. ISBN 80-7080-255-3.
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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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