MHIP7 - Drying in Process Industry

Course specification
Course titleDrying in Process Industry
Study programmeChemical engineering
Lecturer (for classes)
Lecturer/Associate (for practice)
Lecturer/Associate (for OTC)
    ConditionnoneОблик условљености
    The goalComprehension of physical, thermodynamic, kinetic and technological aspects of thermal drying of wet materials and design of convective dryers. Kinetics and dynamics of the process is focused on the following industries: chemical, textile, pharmaceutical, paper, graphic engineering, food processing, agricultural, etc.
    The outcomeStudents will learn about fundamental principles of a thermal drying process: mechanism of drying, mass and energy balances during a drying process, and will learn to perform calculations and design of a convective dryer.
    Contents of lecturesI DRYING OF WET MATERIALS. Thermal drying principles. Drying agent. Humidity and moist materials. Determination of moisture content. ; II KINETICS OF THERMAL DRYING. Driving forces and thermal resistance. Drying rate. Fundamental equation of thermal drying. Period of constant and falling drying rate. ; III HEAT AND MASS TRANSFER. External and internal transfer resistance. Application of the similarity theory. ; IV Thermodynamics of convective drying. Mass and energy balances during convective drying process. Theoretical and real convective dryer. ; V DRYING USING UNSATURATED HUMID AIR. Thermodynamic properties of humid air. Psychrometric charts. Humid air state changes during convective drying process. ; VI THERMAL DRYING. Methods of thermal drying. Planning for thermal drying and dryer selection. Physical state of wet material. ; VII FUNDAMENTAL PRINCIPLES OF CONVECTIVE DRYERS DESIGN. Rotary dryer. Conveyor dryers. Fluidized bed dryers. Pneumatic dryers. Spray dryers. Energy and exergy efficiency of a thermal drying process. ;
    Contents of exercisesComputer simulations and seminars that follow the theoretical classes.
    1. V. Valent “Sušenje u procesnoj industriji“, TMF, Beograd, 2001.
    2. B. Djordjević, V. Valent, S. Šerbanović, M. Kijevčanin “Termodinamika”, TMF, Beograd, 2012.
    3. Reference literature:
    4. A. S. Mujumdar, (Ed.) “Handbook of Industrial Drying“, 3rd edition, Taylor & Francis, New York, 2006.
    5. T. Kudra, A. S. Mujumdar, “Advanced Drying Technologies “, Marcel Dekker, New York, 2002.
    Number of hours per week during the semester/trimester/year
    LecturesExercisesOTCStudy and ResearchOther classes
    Methods of teachingTheoretical and practical lectures.
    Knowledge score (maximum points 100)
    Pre obligationsPointsFinal examPoints
    Activites during lecturesTest paper30
    Practical lessonsOral examination