FSI-KHLAcad. year: 2017/2018
The course is focused on unit operations in the liquid medium, i.e., gaseous and/or liquid. The aim of the course is to introduce the theoretical basics of unit operations of process engineering that are characterized by mass and momentum transfer in liquid medium with different rheological properties. Many of the unit operations are parts of technologies focused on the waste energy utilization, disposal of pollutants as the by-products of waste energy utilization technology, and waste-water treatment.
Besides the theoretical knowledge the emphasis is put on the constructional and ecological design of individual apparatus, and on the design of their main dimensions. The attention is aimed to unit operations like the transportation of liquids and gases, flow through porous material, filtration, gravitational and centrifugal sedimentation, mixing, fluidization, and operations related to waste-water treatment technology. The knowledge gained in this course can be applied in many industrial areas.
Learning outcomes of the course unit
The course enables students to apply the theoretical knowledge on the particular process equipment and apparatus. The students should be able to design the main dimensions of process plant equipment including pipes, filters, pumps, compressors etc.
Basic knowledge of mathematics, physics, hydromechanics and termomechanics.
Recommended optional programme components
Recommended or required reading
Medek, J.: Hydraulické pochody, 3. vydání, VUT - Vysoké učení techniké, Brno, 2000. (CS)
Rieger, F., Novák, V., Jirout, T.: Hydromechanické procesy I, Vydavatelství ČVUT, 2005. (CS)
Rieger, F., Novák, V., Jirout, T.: Hydromechanické procesy II, Vydavatelství ČVUT, 2005 (CS)
Perry, R. H., Green, D.W., Maloney, J.O.: Perry's Chemical Engineer's Handbook, 7th edition, Osbournce-McGraw Hill, 1997. (EN)
Antaki, G.A.: Piping and pipiline engineering: design, construction, maintanance, integrity, and repair, CRC Taylor & Francis, 2003. (EN)
Novák, V. Rieger, F. Vavro, K.: Hydraulické pochody v chemickém a potravinářském průmyslu, SNTL, Praha, 1989. (CS)
Novák, V.: Hydraulické pochody v chemickém a potravinářském průmyslu, SNTL Praha, 1989. (CS)
Míka, V.: Základní vztahy v chemickém inženýrství I: Hydromechanické a tepelné pochody, SNTL, Praha, 1967. (CS)
Míka, V.: Základy chemického inženýrství, SNTL: Alfa, Praha, 1981. (CS)
Darby, R.: Chemical Engineering Fluid Mechanics, 2nd edition, Marcel Dekker, 2001. (EN)
Soares C.: Process Engineering Equipment Handbook, McGraw-Hill, 2002. (EN)
Planned learning activities and teaching methods
The course is taught through lectures explaining the basic principles and theory of the discipline. Seminars are focused on practical topics presented in lectures.
Assesment methods and criteria linked to learning outcomes
SEMINARS: Regular and active attendance is required and checked. Two tests must be passed successfully. Each test consists of three exercises, each exercise for 5 points. Thus the maximum number of points gained from each test is 15. Each test is successfully passed if more than 7,5 points are obtained. The student has the possibility of one repeat. The obtained points from tests are carried to the exam.
EXAM: The exam consists of the oral part, in which student's theoretical knowledge will be examined through 10 questions (1 question = 4 points). The maximum number of points from the exam is 40.
The total number of points obtained within the course is 70. The course evaluation is then as follows:
65 - 70 A
59 – 64 B
53 – 58 C
47 – 52 D
41 - 46 E
0 – 40 F
Language of instruction
The aim of the course is to make students familiar with the theoretical knowledge of unit operations and apparatus used in chemical, foodstuffs and process industry, and biotechnological industry. Another aim of the course is to gain the knowledge about the constructional principles and use of pumps and compressors in those technologies. The acquired knowledge can be also used in other industrial branches.
Specification of controlled education, way of implementation and compensation for absences
The attendance at seminars is checked. Two non-excused absences are allowed. The lectures are optional.
Type of course unit
39 hours, optionally
Teacher / Lecturer
1. Introduction, fundamental physical properties of fluids, main equations used within the course.
2. Industrial piping.
3. Pipe networks, industrial fittings.
4. Pumping of liquids.
5. Compressors and vacuum pumps.
6. Porous jump.
7. Filtration, industrial filters.
8. Gravitational sedimentation of solid particles.
9. Industrial apparatus for gravitational sedimentation.
10. Flotation, clarification and aeration of liquids.
11. Centrifugal sedimentation of solid particles.
12. Fluidization and fluid transport.
13. Mixing of liquids.
26 hours, compulsory
Teacher / Lecturer
1. Dimensional analysis, determination of fundamental physical properties of suspensions and liquids, hydrostatic pressure.
2. Hydromechanics, equation of continuity, Bernoulli’s equation, Michaud formula.
3. Calculation of pressure loss in piping.
4. Design of the industrial piping and piping network.
5. Basic parameters of the porous jump, pressure loss for the one-phase flow through the porous jump.
6. Pressure loss for the two-phase flow through the porous jump.
7. Calculation of filtration constants and time of filtration.
8. Filtration using the frame filter-press.
9. Calculation of the sedimentation velocity in the field of gravitational forces, calculation of main dimensions of the gravity settler.
10. Calculation of the sedimentation velocity in the field of centrifugal forces, cyclones.
11. Design of the mixing equipment, calculation of the time for homogenization.
12. Calculation of the power consumption of pumps, calculation of the appropriate pipe diameter based on the Q-H pump characteristic.
13. Calculation of the specific revolutions, pressure drop in the discharge pipe, consumption of electrical energy.