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Lecturer(s)
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Ferjenčík Miloš, doc. Ing. Ph.D.
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Janovský Břetislav, doc. Ing. Dr.
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Course content
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Černobyl - introductory case. Frequency of accidents. Kletz`s model of accident investigation. Safety. Industrial safety. System with hazards. Safety and inherently safer designs. Hazards. Realizations of hazards. Causations, initiation, failures. Passive hazards. Mechanical energy releases. Incident scenarios and hazards. Frequency of human errors. Hazard identification. HAZOP a FMEA techniques. Rapid risk ranking. Analysis of incident scenarios. Event tree technique. System analysis. Estimation of incident scenarios frequencies. Test of knowledge. Examination project assignment. Basic terminology in a consequence analysis. Transmission paths and attenuation. General principles. Atmosphere as a transmission path. Water as a transmission path. Soil as a transmission path. Barriers. Pressure energy action. Releases of dusts and liquids. Releases of liquefied gases or vapors, BLEVE scenario. Implosion. Releases of pressurized and liquefied gases. Thermal energy action. Mechanism of heat transmission. Releases of hot liquids and gases. Pool fire. Fireball. Releases of cold materials. Deflagration and detonation. General principles. Chemical energy action - unconfined deflagrations. Confined deflagrations. Harm to receptors. General principles. Injury and damage. Concept of dose. Relation between dose and harm. Harm to people. Harm to equipment and buildings. Harm to the environment from acute emissions. Colloquium of students - Process Safety Progress Chemical reactors. Chemical energy releases. General principles. Classification of chemical reactions according to emission of energy. Runaway reactions. Adiabatic temperature rise Tad, process classification according to Tad. Kinetic aspects of exothermic process safety. Hazards characterization and evaluation. Risk analysis - terms and concepts. Risk analysis procedures. Quantitative risk analysis. Control of process hazards. Tactics and strategy in hazard control. Acceptability of risks. Management role in loss prevention. Process safety management. Human factor. Legislation role. European directive SEVESO 2, American PSM, laws of Czech Republic.
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Learning activities and teaching methods
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Monologic (reading, lecture, briefing)
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Learning outcomes
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Hazard identification and risk assessment: Examples of accidents, accident investigation, safety and inherently safer design. Human factor, safety management. Hazard identification methods, risk indices, risk matrices. HAZOP, FMEA. Rapid risk ranking. Event tree, Fault tree. Consequence analysis: Source term definition - discharge rate models, calculation of evaporation. Dispersion models - plume, puff, jet, heavy gas. Explosions and fires - VCE, flash fire, explosions in buildings, BLEVE, pool and jet (flare) fire. Physical effects on human and constructions.Safety of chemical reactors: Chemical reactors and their characteristics. Classification of chemical reactions from the thermodynamical viewpoint. Adiabatic temperature increase Tad, classification of the process according Tad. Exothermal process - kinetics. Methods of reactors cooling. Mathematical modeling of chemical reactors. Introduction in quantitative risk analysis: Risk analysis procedure, Illustration of QRA method.Safety regulations: European directive SEVESO and SEVESO II, British COMAH, U.S. Process Safety Management. Czech regulations.
Graduate understands basics of risk analysis and knows principles, how they are applied in order to increase effectivity of industrial safety management systems. He/she is prepared to take part in risk analysis and in relevant improvement of safety management systems.
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Prerequisites
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unspecified
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Assessment methods and criteria
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Written examination
Requirements on students: Examination by written project 100 %
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Recommended literature
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Crowl D.A, Louvar J.F. Chemical process safety: Fundamentals with applications, 1990 Prentice Hall, Eaglewood Cliffs, N.J..
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Kletz T.:. Learning from Accidents, 1993, Buterworth-Heinemann, Oxford.. Buterworth, 1993.
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Lees F.P. Loss Prevention in the Process Industries, second edition 1996, Buterworth-Heinemann, Oxford.. Buterworth, 1980.
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Marshall V. and Ruhemann S. Fundamentals of Process Safety.
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