Unit operations

NAME OF THE COURSE Unit operations

Code

KTK207

Year of study

2.

Course teacher

Assoc Prof Marija Ćosić

Credits (ECTS)

7.0

Associate teachers

Asst Prof Antonija Čelan
Renato Stipišić

Type of instruction (number of hours)

P S V T

45

15

30

0

Status of the course

Mandatory

Percentage of application of e-learning

0 %

COURSE DESCRIPTION

Course objectives

Students gain knowledge about the basic unit operations in the process engineering through theoretical expressions based on the mass and energy balances. Students are also acquainted with the working principles of the most used devices and selection of their optimum working conditions regarding minimization of energy consumption and product quality.

Course enrolment requirements and entry competences required for the course

Students gain knowledge about the basic unit operations in the process engineering through theoretical expressions based on the mass and energy balances. Students are also acquainted with the working principles of the most used devices and selection of their optimum working conditions regarding minimization of energy consumption and product quality.

Learning outcomes expected at the level of the course (4 to 10 learning outcomes)

After passing the exam the student is expected to know:
- fundamental principles of mechanical and of heat and mass transfer operations
- explain the laws that follow performance of each of the various operation
- explain the influence of operating variable on each operation
- bring up the most common used equipment for particular operation and explain their working principle
- for a given process, select the equipment that would be the most effective
- some of the most common operating problems encountered in the process industry

Course content broken down in detail by weekly class schedule (syllabus)

1st week: Introduction to chemical engineering processes. Fluid transport.
2nd week: Coarse dispersed systems. Milling.
3rd week: Classification. Granulometric analysis.
4th week: Separation. Classification and separation equipment.
5th week: Filtration theory. Filtration equipment.
6th week: Mixing of Newtonian and non-Newtonian fluids.
7th week: Mixing of particulate solids. Selection and dimensioning of mixing equipment.
8th week: Heat and mass transfer operations. Heat exchangers.
9th week: Condensers and vaporizers.
10th week: Theory of absorption and absorption equipment.
11th week: Drying in process engineering. Drying equipment.
12th week: Crystallization. Crystallization equipment.
13th week: Distillation.
14th week: Rectification and stripping. Fractionation.
15th week: Theory of extraction and leaching. Extraction equipment.
Laboratory exercises:
Milling - determination of the degree of particle size reduction. Particle size classification. Mixing - power consumption determination. Filtration - determination of filtration coefficient and filtration cake resistance. Heat exchanger - determination of overall heat transfer coefficient. Absorption. Drying rate determination. Crystallization – determination of nucleation and crystal growth rate. Distillation - determination of the number of theoretical plates.

Format of instruction:

Student responsibilities

Lecture attendance: 80 %. Laboratory exercises attendance: 100 %.

Screening student work (name the proportion of ECTS credits for eachactivity so that the total number of ECTS credits is equal to the ECTS value of the course):

Class attendance

2.5

Research

0.0

Practical training

1.0

Experimental work

0.5

Report

0.0

0.5

Essay

0.0

Seminar essay

0.0

 

 

Tests

0.0

Oral exam

1.5

 

 

Written exam

1.0

Project

0.0

 

 

Grading and evaluating student work in class and at the final exam

During the semester student may take the exam by two theoretical (oral) and two calculation (written) tests. Test passing score is 55%. After passing all tests the average score for oral and written parts is calculated and the grade for each part is determined by the following criteria: 55%-66% - satisfactory, 67%-78% - good, 79%-89% - very good, 90%-100% - excellent.
The final grade is calculated form the grades obtained for oral and written part and from exercises. For laboratory exercises passing score is also 55 %. Theoretical part constitutes 50% of grade while written part and exercises by 25 %. Students who do not pass the partial exams have to take an exam in the regular examination periods. The exam consists of theoretical (oral) and written part. Final grade is determined by previously notated criteria.

Required literature (available in the library and via other media)

Title

Number of copies in the library

Availability via other media

W. L. McCabe, J. C. Smith, P. Harriot, Unit Operations of Chemical Engineering, seventh ed., McGraw-Hill, New York, 2004.

2

C. J. Geankoplis, Transport Prosesses and Separation Process Principles (Includes Unit Operations), fourth ed., Pearson Eucation, Inc.,New Jersey, 2007.

1

M. Hraste, Mehaničko procesno inženjerstvo, 2. izdanje, HINUS, Zagreb, 2003.

5

Optional literature (at the time of submission of study programme proposal)

J. Welty, J. W. Wicks, R. E. Wilson, G. L. Rorrer, Fundamentals of Momentum, Heat and Mass Transfer, fifth ed., J. Wiley and Sons Inc., New York, 2007.

Quality assurance methods that ensure the acquisition of exit competences

Quality of the teaching and learning, monitored at the level of the
(1) teachers, accepting suggestions of students and colleagues, and
(2) faculty, conducting surveys of students on teaching quality

Other (as the proposer wishes to add)