651-2039/01 – Balance (B)
Gurantor department | Department of Chemistry and Physico-Chemical Processes | Credits | 3 |
Subject guarantor | prof. Ing. Marek Večeř, Ph.D. | Subject version guarantor | prof. Ing. Marek Večeř, Ph.D. |
Study level | undergraduate or graduate | Requirement | Compulsory |
Year | 1 | Semester | summer |
| | Study language | Czech |
Year of introduction | 2022/2023 | Year of cancellation | |
Intended for the faculties | FMT | Intended for study types | Bachelor |
Subject aims expressed by acquired skills and competences
The objective of the course: to explain the basic principles of mass and energy balancing in the description of technological processes. Demonstrate practical procedures for balancing of complex systems using automated calculations.
Acquired knowledge: stoichiometric calculations, material balances of single-stage processes (mixer, splitter, separator, crystallizer) and multistage processes (solution preparation + concentration adjustment, recycle, by-pass).
Acquired skills: using and converting values in units based on the SI system, expressing the composition of compounds and mixtures in different ways and recalculating them, stoichiometric calculations (calculating the mass of reactants/products, the composition of the reaction mixture) including applying conversion, yield or losses. Fundamentals of the energy balances in simple processes.
Teaching methods
Lectures
Tutorials
Experimental work in labs
Summary
Předmět je zaměřen na praktické zvládnutí základních chemicko-inženýrských výpočtů nutných pro absolvování laboratorních cvičení a dalších navazujících kursů. Jeho obsahem jsou mj. výpočty založené na stechiometrii chemických reakcí (množství reaktantů a produktů), vyjadřování a přepočty složení směsí, výpočty založené na stavové rovnici ideálního plynu a materiálové bilance jednoduchých procesů (separátor, mísič aj.) i procesů složitějších složených z více jednotek. Je vysvětlen princip bilancí energií v kontextu praktických příkladů. Soustavně je procvičováno látkové a energetické bilancování procesů na jednoduchých příkladech tak aby byly upevněny základní principy před masivním využitím výpočetní techniky.
Compulsory literature:
Recommended literature:
Way of continuous check of knowledge in the course of semester
Classified credit.
E-learning
Other requirements
Elaborate four semestral projects.
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
1. Fundamental physical and chemical quantities. Units, dimensions, conversions. Counting with inaccurate values.
2. Mixtures and expressing their composition. Different expressions of concentration and their recalculations. Composition of compounds. Determination of stoichiometric formula from the composition. The mass fraction of an element in a mixture of compounds.
3. Preparation and separation of mixtures. Impurities. Fundamentals of material balance without chemical reaction. Balance diagram, streams, and components. Assignment matrix. The solution of simple balancing tasks (mixer, splitter, separator, etc.). Balance equations and additional closure relations.
4. Saturated solutions. Crystallization. Component yield.
5. The role of matter and chemical reaction. Law of Conservation. Conversion. Yield. Deficiency and excess of reactant. Losses. Key component. Basics of stoichiometric calculations.
6. Ideal gas. Relationships between mass and volume in the gaseous state. Standard conditions. Gaseous mixtures. Partial pressure. The volume of the pure component. Dalton's law. Amagate's law. Average molecular weight. Mixture density. Real gas.
7. Saturated vapor pressure. Influence of temperature on vapor pressure. Hausbrandt diagram.
8. More complex balance systems - multi-step processes. Recycle and By-pass.
9. TEST 1
10. More complex stoichiometric calculations (more reactions, different states of reactants/products, calculation of reaction mixture composition, etc.).
11. Psychometry. Humidity. Dry and humid air.
12. The energy balance. Standart conditions. The heat capacity. The heat of formation. The heat of combustion. The heat of chemical reaction. The heat of mixing. Hess's law. The temperature of the adiabatic reaction. Theoretical flame temperature.
13. Simultaneous material and energy balances. Balance of unsteady states.
14. TEST 2
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction
Předmět neobsahuje žádné hodnocení.