342-0941/02 – Mechanics of Bulk Solids (MSP)

Gurantor departmentInstitute of TransportCredits10
Subject guarantordoc. Ing. Aleš Slíva, Ph.D.Subject version guarantordoc. Ing. Aleš Slíva, Ph.D.
Study levelpostgraduate
Study languageCzech
Year of introduction2013/2014Year of cancellation
Intended for the facultiesFSIntended for study typesDoctoral
Instruction secured by
LoginNameTuitorTeacher giving lectures
JEZ0044 Ing. Lucie Jezerská, Ph.D.
NEC37 doc. Ing. Jan Nečas, Ph.D.
ZEG50 prof. Ing. Jiří Zegzulka, CSc.
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Examination 25+0
Combined Examination 25+0

Subject aims expressed by acquired skills and competences

Students of the subject will be introduced to fundamental laws and described parameters needed to a mathematic and physical description of a bulk solid behavior.

Teaching methods

Individual consultations
Tutorials
Project work

Summary

Students of the subject will be introduced to fundamental laws and described parameters needed to a mathematic and physical description of a bulk solid behavior. Especially, a core of the subject will be turned to a storage system proposal. Latest knowledge of the rapidly growing branch: nanotechnology will be presented here also. There will be demonstrated measurement methods following interpretation of measured values in the subject. Ideal bulk solid; Definition of bulk solids state; Difference between fundamental material states; Bulk solids logistics; Criteria of transport/Processing system choice for Bulk solids. Granulometry and Morphology, and methods and theory of their assessment, including mathematical models, eg. Gauss, RRSB, Logarithmic Distribution and so on. Bulk solid Properties and Their Description; Flow influence; Flow pattern size and their development; Jenike Shear Machine principle and its equation; Rotary Shear Machine; Another shear machine construction; Interpretation of measured values; Mechanical-Physical Property definition. Particulate Material Constitution for the Bulk Solid Application; Methods of angle of internal friction measurement and its interpretation including energy concept; Partial physical magnitude influence ratio to bulk solid mechanical-physical property. Definition of Inter-Particle Bindings; Ratio of individual physical and geometrical property influence to mechanical-physical properties of Bulk solids, eg. moisture, shape, mechanical and electrical bindings, Roscoe’s diagram and its design and principle, applications. Models of Pressure State Distribution; Models of bulk solid pressure development; General model of bulk solid pressure distribution; Usual and state-of –the art of pressure modeling methods of Bulk solids; Method of pressure distribution solution for Bulk solids according to Janssen’s, Rankin’s and Pascal’s theories. Motion of Bulk Solid Particulates in Assembly Constitution; 1st and 2nd of displacement mechanism; Ideal bulk solids and their deeper relations; Piston flow mechanism and its definition and description including edge conditions; Laminar flow mechanism and its definition and description including edge conditions. Speed Outlet Out of Vessel; Pressure peak and its model creation incl. technical conclusions. Pulsating character of Bulk solid flow; Own and wall frequency. Flow Failures of Bulk Solids; Static and dynamic arc; Mass and funnel flow; Jenike’s theory of mass; Ideal bulk solid application; Flow through cone-shape outlet. Application 1st: Bulk Solid Properties and Their Application by Transport, Processing and storage designing; Bulk solid moulding /Balshin’s Eq. Application 2nd: Shapes and Machine Materials by Transport, Processing and storage designing; Bulk solid moulding /Balshin’s Eq. Bulk solid aeration. Pneumatic Transport. Choice Method of Grinder and Mill Proposal; Grinding theory; degradation and compression; Granulation. Criteria of Conveyor Choice and Transport Systems for Bulk Solids; Demands to transport and storage, and their quality parameters. Innovation in the Bulk Solid Area; R&D trends in the area; Nanotechnology; Present situation in the Czech Rep. in comparison with EU; R&D.

Compulsory literature:

Muther, R., Haganas, K.: Systematic Layout Planning, SNTL, Czech Rep., 1980. Brown, R.: Principles of Powder Mechanics, Pergamon, UK, 1970. Schulte, Ch.: Logistics, Victoria Publishing Praha, Czech Rep., 1994.

Recommended literature:

Brown, R.: Principles of Powder Mechanics, Pergamon, UK, 1970.

Way of continuous check of knowledge in the course of semester

Konzultace, semestrální projekt.

E-learning

Další požadavky na studenta

Basic knowledge of mechanical and physical properties of bulk materials

Prerequisities

Subject has no prerequisities.

Co-requisities

Subject has no co-requisities.

Subject syllabus:

Ideal bulk material. Definition of the stress state. The difference between the basic material conditions. Logistics of bulk materials. Transport and selection criteria transport and storage facilities. Granularity and morgologie. Methods and theory of measurement, including mathematical modeling eg. Gaussian distributions RRSB, logarithmic distributions like. The properties of bulk materials and their description. Effect fluidity transport system. Flow patterns and their descriptions. Jenikeho shear machine and its easurement principle. Rotary shear machine. Other shear device. Interpretation of measured values. Definition of mechanical and physical parameters. The composition of particulate material and the particulate material application. Methods of measurement angle of internal friction and its interpretation in the context of the energy concept. Definition of interparticle bonds. The influence of various physical and geometrical effects on tekutostní ratios, the influence of moisture, shape, and mechanical electrical links. Roscoevuv diagram, principle, construction. Models stress state of powder. Models distribution voltage. Modelovíní distribution voltage. Jansen, Rankine and Pascal's theory of stress in bulk materials. CATIC mass movement. The first and the second mechanism of particle motion. Piston flow mechanism and its definition, including boundary conditions. Laminar mechnaismus flow and its definition and description of the boundary conditions. Leaving velocity from the storage containers. Pressure peaks and its modeling and compared with the actual state. Pulse character of the flow of bulk materials. Custom and wall frequency. Fault ytoku bulk materials. Creation of static and dynamic arc. Weights and core flow. Jenikeho theory of matter. Applications ideal loose material and its use. Flow through the conical discharge opening. The properties of bulk materials and its applications in transport. Process and storage modes and design. Shapes and materials handling and transport equipment. Balshinuv relationship fluidization. Pneumatic conveying. The selection of methods of grinding mills and suggestions. Theory crushing. Degradation and compression. Granulation. Selection criteria conveyor and transport system for bulk materials. Requirements transport and storage, and their quality requirements. Innovation in bulk materials. The latest trends in R & D, Nanotechnology, the current situation in the area of ​​the Czech Republic, EU.

Conditions for subject completion

Full-time form (validity from: 2013/2014 Winter semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of points
Examination Examination  
Mandatory attendence parzicipation:

Show history
Combined form (validity from: 2013/2014 Winter semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of points
Examination Examination  
Mandatory attendence parzicipation:

Show history

Occurrence in study plans

Academic yearProgrammeField of studySpec.FormStudy language Tut. centreYearWSType of duty
2019/2020 (P2346) Mechanical Engineering (2301V001) Transport and Material Handling P Czech Ostrava Choice-compulsory study plan
2019/2020 (P2346) Mechanical Engineering (2301V001) Transport and Material Handling K Czech Ostrava Choice-compulsory study plan
2018/2019 (P2346) Mechanical Engineering (2301V001) Transport and Material Handling P Czech Ostrava Choice-compulsory study plan
2018/2019 (P2346) Mechanical Engineering (2301V001) Transport and Material Handling K Czech Ostrava Choice-compulsory study plan
2017/2018 (P2346) Mechanical Engineering (2301V001) Transport and Material Handling P Czech Ostrava Choice-compulsory study plan
2017/2018 (P2346) Mechanical Engineering (2301V001) Transport and Material Handling K Czech Ostrava Choice-compulsory study plan
2016/2017 (P2346) Mechanical Engineering (2301V001) Transport and Material Handling P Czech Ostrava Choice-compulsory study plan
2016/2017 (P2346) Mechanical Engineering (2301V001) Transport and Material Handling K Czech Ostrava Choice-compulsory study plan
2015/2016 (P2346) Mechanical Engineering (2301V001) Transport and Material Handling P Czech Ostrava Choice-compulsory study plan
2015/2016 (P2346) Mechanical Engineering (2301V001) Transport and Material Handling K Czech Ostrava Choice-compulsory study plan
2014/2015 (P2346) Mechanical Engineering (2301V001) Transport and Material Handling P Czech Ostrava Choice-compulsory study plan
2014/2015 (P2346) Mechanical Engineering (2301V001) Transport and Material Handling K Czech Ostrava Choice-compulsory study plan
2014/2015 (P2301) Mechanical Engineering (2301V001) Transport and Material Handling P Czech Ostrava Choice-compulsory study plan
2014/2015 (P2301) Mechanical Engineering (2301V001) Transport and Material Handling K Czech Ostrava Choice-compulsory study plan
2013/2014 (P2301) Mechanical Engineering (2301V001) Transport and Material Handling K Czech Ostrava Choice-compulsory study plan
2013/2014 (P2301) Mechanical Engineering (2301V001) Transport and Material Handling P Czech Ostrava Choice-compulsory study plan
2013/2014 (P2346) Mechanical Engineering (2301V001) Transport and Material Handling P Czech Ostrava Choice-compulsory study plan
2013/2014 (P2346) Mechanical Engineering (2301V001) Transport and Material Handling K Czech Ostrava Choice-compulsory study plan

Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner