Base Knowledge
– Thermodynamics;
– Fluid Mechanics;
– Heat Transmission.
Teaching Methodologies
The course unit is organised in theoretical and theoretical-practical lessons. The theoretical lessons are devoted to the presentation and discussion of the subjects taught. The presentations are complemented with technical documentation and videos of the equipment studied. A visit is made to the Laboratory of Thermal Systems for students contact with thermal equipment and systems existing there. The theoretical-practical classes are used for solving exercises.
Learning Results
It is intended that students acquire congruent and in-depth knowledge in the areas of production, transportation and usage of thermal energy, and, in particular, that know the configuration and understand the operation of the various types of boilers and heat exchangers, as well as have the ability to install, operate and do the maintenance of these equipment. It is also intended that students learn to perform combustion calculations, to analyze combustion charts and to carry out energy balances.
This course unit participates in the achievement of the following specific skills:
– To know, understand and realize how to apply the laws of thermodynamics and the principles of heat transfer, including the ability to make thermal balances;
– To understand the process and have capability to install, operate and do the maintenance of general thermal equipment.
Program
1. Combustion
Definition. Complete and incomplete combustion. Stoichiometric combustion. Excess air. Fuels and their properties. Higher and lower heating values. Ignition temperature. Chemical reaction equations. Combustion calculations and analysis. Combustion graphs. Emissions limits.
2. Boilers
Definition and main applications. Classification. Boiler types and their components. Boiler equipment and fittings. Combustion systems. Steam superheaters, desuperheaters and reheaters. Economizers and water preheaters. Combustion air heaters. Cogeneration plants. Energy losses and boiler efficiency.
3. Heat exchangers
Definition and application fields. Classification. Types of heat exchangers: double pipe heat exchangers, shell and tube heat exchangers, plate heat exchangers, extended surface heat exchangers and regenerators. Components and fittings. Operational features.
4. Energy balances
Energy balance of a thermal power plant.
Internship(s)
NAO