651-2039/01 – Balance (B)

Gurantor departmentDepartment of Chemistry and Physico-Chemical ProcessesCredits3
Subject guarantorprof. Ing. Marek Večeř, Ph.D.Subject version guarantorprof. Ing. Marek Večeř, Ph.D.
Study levelundergraduate or graduateRequirementCompulsory
Year1Semestersummer
Study languageCzech
Year of introduction2022/2023Year of cancellation
Intended for the facultiesFMTIntended for study typesBachelor
Instruction secured by
LoginNameTuitorTeacher giving lectures
STA277 Ing. Petr Stavárek, Ph.D.
VEC05 prof. Ing. Marek Večeř, Ph.D.
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Graded credit 1+2

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:

FELDER Richard M., Ronald W. ROUSSEAU. Elementary principles of chemical processes, New York, Wiley. 1986. ISBN: 0471873241.

Recommended literature:

GHASEM Nayef, Redhouane HENDA. Principles of chemical engineering processes, Boca Raton, CRC Press. 2009. ISBN: 9781420080131

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

Full-time form (validity from: 2022/2023 Winter semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of pointsMax. počet pokusů
Graded credit Graded credit 100  51 3
Mandatory attendence participation: Elaborate four semestral projects.

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Conditions for subject completion and attendance at the exercises within ISP: Completion of all mandatory tasks within individually agreed deadlines.

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Occurrence in study plans

Academic yearProgrammeBranch/spec.Spec.ZaměřeníFormStudy language Tut. centreYearWSType of duty
2024/2025 (B0712P130001) Environmental technology BJO P Czech Ostrava 1 Compulsory study plan
2023/2024 (B0712P130001) Environmental technology BJO P Czech Ostrava 1 Compulsory study plan
2022/2023 (B0712P130001) Environmental technology BJO P Czech Ostrava 1 Compulsory study plan

Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner

Assessment of instruction

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