31399 - Energy Systems T

Learning outcomes

The student learns basic knowledge about energy sources, fuels, combustion, and fossil fuel power systems.

Course contents

Requirements/Prior knowledge

A prior knowledge and understanding of Technical Physics, General Physics, Basics of Chemistry, are required to attend with profit this course.

Fluent spoken and written Italian is a necessary pre-requisite: all lectures and tutorials, and all study material will be in Italian.

 

Course Contents

Thermodynamic basics

Ideal gas compression and expansion: isentropic and polytropic work and efficiency, total enthalpy and temperature, speed of sound, polytropic transformations and thermodynamics diagrams.

 

Heat exchanger

Counter-flow, parallel-flow and cross-flow heat exchangers. main design aspects.

Averaged mean logarithmic and effectiveness-NTU methods.

 

Boiler and steam generator

Combustion: stoichiometric oxidation reactions, heating values, energy density, CO2 emission, adiabatic temperature.

Typologies and applications, steam generator efficiency and water circulations.

 

Gas Turbine

Thermodynamic analysis and applications of Brayton and Advance cycles (recuperated, intercooled, reheated, etc.)

Component description: compressors, combustion chamber, expander, etc.

Environmental impact

Advanced gas turbine cycles: recuperator and intercooler

 

Steam power plant

Thermodynamic analysis of steam cycles (Rankine, Hirn, re-heated and regenerative ones).

Component description: steam generator, condenser, steam turbine, cooling systems, etc.

Environmental impact

 

Combined cycle power plant

Thermodynamic analysis of combined cycles with one or more pressure levels

Component description: heat recovery steam generator, condenser, steam turbine, cooling systems, etc.

Environmental impact

Readings/Bibliography

"Sistemi Energetici e macchine a fluido" G: Negri di Montenegro, M. Bianchi A. Peretto, III Edizione – Pitagora Editore

Teaching methods

Teaching is made up of 6CFU, all of the frontal lessons. Within these lessons, numerical exercises are performed on the main topics of the course: gas turbines, steam power plants and combined cycles.

The purpose of numerical exercise is to teach students the units of measurement and the performance of the energy conversion systems in terms of quantity.

Assessment methods

The final exam aims to evaluate the achievement of the didactic goals:
- fuels and combustion;
- systems for the conversion of energy from fuel;
- fluid machines that make up an energy system.

The final grade of the course is defined by an oral test on the average of the votes given in three specific questions on topics related to the main objectives of the course.

Teaching tools

Teaching materials: teaching material presented in class will be made available to the student in electronic format via internet.

This material should be printed and brought to class. To download the teaching material: http://campus.unibo.it/ Username and password are reserved for students enrolled at the University of Bologna

Office hours

See the website of Michele Bianchi