Unit

Course: Safety engineering for the territory and the built environment
Study-unit Code: A003012
Curriculum: Territorio
Teacher: Antonio Faba
CFU: 10
Course Regulation: Coorte 2023
Offered: 2023/24
Type of study-unit: Obbligatorio (Required)
Type of learning activities: Attività formativa integrata

Code	A003014
CFU	5
Teacher	Mara Lombardi
Teachers	Mara Lombardi
Hours	20 ore - Mara Lombardi
Learning activities	Caratterizzante
Area	Ingegneria della sicurezza e protezione industriale
Academic discipline	ING-IND/28
Type of study-unit	Obbligatorio (Required)
Contents	Characteristics of Risk evaluation: - Systemic approach to analyse sequences and interrelations in potential incidents or accidents, considering the logic chain events. Set of Safety rules: - Quantification of risks establishing the basis of a performance-based approach for the assessment of safety standards. Event Tree Analysis (ETA): - Estimation of the probabilities of all the final consequence events. Fault Tree Analysis (FTA): - Statistical inference techniques for the estimation of the probability of the initiating events. Risk Evaluation in Construction site: - Acceptability and safety criteria. Risk and Safety Management: - Effectiveness and also cost-effectiveness of different safety measures - Probability and consequence analysis of the scenarios evaluation. Workshop
Educational objectives	The course is focused on providing the analytical fundamentals of quantitative probabilistic risk analysis applied to working and construction site and criteria of managing residual risk (general target). Knowledge and understanding : after passing the exam, the students will be able to deal with issues related to safety management both from the point of view of risk analysis and the managing of safety solutions. Applying knowledge and understanding: after passing the exam, the students will be able to make design choices with regard to the safety of complex systems. After passing the exam, the students will acquire the ability to make judgments with particular regard to “assess the safety conditions in the work site, in service activities and in the industrial and civil infrastructures (industrial plants and process, construction site) by focusing the design, operational and procedural strategies necessary to guarantee an appropriate level of safety and to verify the acceptability of residual risk ", particularly in the case of complex systems or problems. The required learning skills will contribute to the process of self-learning (learning skills) that will continue related to the expected professional skills of the learning process, as well as to the required specific issues. Individual and group project work will also contribute to the student's development of self-learning skills also related to the ability to formulate critical judgments and assessments (making judgments) starting from limited or incomplete information (document "assessments and analysis of design projects and logistical-operational solutions in construction sites and workplaces, to verify the compliance with the general safety requirements of workers as well as safeguarding the integrity of the environment").

Code	A003013
CFU	5
Teacher	Antonio Faba
Teachers	Antonio Faba
Hours	20 ore - Antonio Faba
Learning activities	Caratterizzante
Area	Ingegneria della sicurezza e protezione industriale
Academic discipline	ING-IND/31
Type of study-unit	Obbligatorio (Required)
Language of instruction	Italian
Contents	Introduction to the theory of electrical circuits. Electrical systems for the production, transport and distribution of electrical energy. Systems for the safety and protection of people from electrocution. Emergency systems in conditions of power failure: continuity systems, generators and combined systems.
Reference texts	Lecture notes are available for the students.
Educational objectives	Acquire knowledge and skills on electrical systems and in particular on emergency systems in the event of a power failure.
Prerequisites	Mathematics, general physics and electromagnetism.
Teaching methods	e-learning mode.
Other information	Lecture notes are available for the students.
Learning verification modality	Oral interview.
Extended program	Course Introduction: objectives, motivations and general description of the topics. Basic concepts of the electrical engineering. Electric potential, electric current, electric networks with lumped parameters, electric bipoles, first and second Kirckoff's law, linear and time invariant passive bipoles, real bipoles, active bipoles. Electrical circuits: steady-state and transient modes. Sinusoidal alternating mode: symbolic representation, the phasor, the impedance operator, the electrical power in linear bipole networks. Three-phase electrical networks. Electrical power systems and transformer: operating principle. Systems for the transport and distribution of electricity. Composition of an electricity transmission and distribution system. Power lines, insulators, guard ropes, arresters, switches and disconnectors. General scheme of the transmission and distribution system, general scheme of the electrical cabin. Low voltage power lines, cables capability. Checking the voltage drop. The protections for low voltage systems. Specific let-through energy of a cable. Magneto-thermial switches. Specific let-through energy of a thermal magnetic circuit breaker. Coordination between switches and cables. The fuses. Protection of people from electrocution. Direct contacts, differential relays, IP protection degree. Indirect contacts, earthing systems and lightning protection systems. The TT system, the TN system, the IT system. Passive protection systems, step and contact voltage verification. Restoration and management of an electrical system in emergency. Introduction on emergency conditions and recovery systems. General diagram of a generator. The alternator, alone mode, operating mode on the power transmition lines. Characteristic parameters of an alternator and applications. Classification of generators and applications. Generators settings: laws and standards. General composition of an uninterruptible power supply. The rectifier and its applications. The inverter and its applications. Batteries and their applications. UPS with "off-line" and "on-line" control, and their applications. General diagram of an emergency system "generator - uninterruptible power supply".