Academic Year 2021/2022 - 1° Year

ING-IND/31 - 6 CFU - 2° Semester

The course contents is addressed towards basic circuit theory, together with an overview of relevant applications in the civil engineering field . Elementary concepts used in electric plants are introduced, together with protections against electric risks for human safety. Renewable energy production and management, photovoltaic plants and zero energy buildings are also introduced

**Knowledge and understanding**

At the end of the course the students will be able to understand and evaluate simple problems concerning electrical applications in civil engineering

**Applying knowledge and understanding**

The student will be able to design simple electrical applications

**Making judgements**

The applications are aimed at developing critical skills and autonomous paths on the basis of available data

**Communication skills**

Several examples are given aimed at properly communicating results

**Learning skills**

The training course is structured so that further elaborations in this area can be autonomously undertaken with great ease.

Classroom lectures and concerning both theory and examples of applications to civil engineering problems

Should teaching be carried out in mixed mode or remotely, it may be necessary to introduce changes with respect to previous statements, in line with the programme planned and outlined in the syllabus.

Learning assessment may also be carried out on line, should the conditions require it.

Basic circuit theory

Voltage and Current. Idealized electrical components. Kirchhoff's Current and Voltage Laws. Electric power and energy, passive and active elements: independent Current and Voltage sources, resistors, capacitors, and inductors, ideal circuit breaker, ideal transformer. Simple networks: Voltage division of series components, Current division of parallel components Equivalent circuits: Series & Parallel connections for one port components. Norton & Thevenin theorem.** **First and second order linear time-invariant circuits: RC, RL and RLC circuits. State variables. Differential equations and initial conditions. Natural frequencies..zero-input, zero state and complete response. Alternating currents circuits: sinusoidal Waveforms. Phasor for AC Circuits Analysis. Impedance and admittance. Active and reactive Power. Complex Power and Apparent Power, Power Factor Correction. Three-phase circuits: Three and four wires star and delta configurations. Three-phase power.

Elements of electric plants. Human safety against electric risks.

Renewable energy production and management, photovoltaic plants, zero energy buildings

1. R.Perfetti, *Circuiti Elettrici*, Zanichelli.

2. J.A. Edminister, *Circuiti Elettrici*, coll. Schaum's, McGraw-Hill.