Steam Generators and Thermal Plants - a.y. 2016/2017
Period (Year/Semester): II/I
Required/expected prior knowledge: Fluid Machines
To let the student acquire the ability to work professionally in the specific field, highlighting the technical and economic aspects of the design, installation and operation of the thermal plants, using the knowledge gained in prior and collateral courses.
Transmitting scientific and professional knowledge of the specific field highlighting the multiplicity of connections with basic phenomenologies and related cultural areas.
Tables of contents:
SG classification. SG efficiency and classification of thermal losses. Economizers, evaporators, superheaters and air preheaters in watertube SG: desing and operation aspects. Two phase heat exchange in evaporators. Heat exchange in economizers and superheaters. Thermal radiation in combustion chamber, Hottel diagrams. Firetube boilers. Safety, control and monitoring of SG. Safety valves. Thermal plants control. PID controllers: logics and tuning. Control valves in thermal plants. Feed water treatments: filtering, demineralization, deareation. Thermal oil heaters. Expansion tanks. SG in nuclear plants. Waste to energy SG:peculiarities and critical aspects . Pollutant emission by thermal plants: prevention and abatement techniques. Tube corrosion in SG. Steam generation in geothermal plant. Pipe systems in thermal plants. Two phase flow: thermal and mass balance for water and fuels.
Lessons and exercises.
Textbooks and learning aids:
D.Annaratone, GENERATORI DI VAPORE, DESCRIZIONEN E PROGETTAZIONE, Maggioli Ed.
P.Andreini, F. Pierini, LA CONDUZIONE DEI GENERATORI DI VAPORE, Hoepli
Assessment will be oral.