First cycle
degree courses
Second cycle
degree courses
Single cycle
degree courses
School of Engineering
Course unit
IN02120409, A.A. 2019/20

Information concerning the students who enrolled in A.Y. 2019/20

Information on the course unit
Degree course Second cycle degree in
IN0528, Degree course structure A.Y. 2014/15, A.Y. 2019/20
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Number of ECTS credits allocated 6.0
Type of assessment Mark
Course unit English denomination COGENERATION AND COMBINED PLANTS
Department of reference Department of Industrial Engineering
Mandatory attendance No
Language of instruction Italian
Single Course unit The Course unit can be attended under the option Single Course unit attendance
Optional Course unit The Course unit can be chosen as Optional Course unit

Teacher in charge ANNA STOPPATO ING-IND/08

Course unit code Course unit name Teacher in charge Degree course code

ECTS: details
Type Scientific-Disciplinary Sector Credits allocated
Core courses ING-IND/09 Energy and Environmental Systems 6.0

Course unit organization
Period Second semester
Year 1st Year
Teaching method frontal

Type of hours Credits Teaching
Hours of
Individual study
Lecture 6.0 48 102.0 No turn

Start of activities 02/03/2020
End of activities 12/06/2020
Show course schedule 2019/20 Reg.2014 course timetable

Examination board
Board From To Members of the board
10 A.A. 2019/2020 01/10/2019 30/11/2020 STOPPATO ANNA (Presidente)
BENATO ALBERTO (Membro Effettivo)
9 A.A. 2018/19 01/10/2018 30/11/2019 STOPPATO ANNA (Presidente)
BENATO ALBERTO (Membro Effettivo)

Prerequisites: No prerequisites.
Knowledge of:
- thermodynamics: first and second law of thermodynamics, main heat exchange mechanisms, heat exchanger sizing, general energy balance and exergetic equations, energy and exergetic analysis of energy conversion processes; reference cycles for steam and gas systems (Rankine and Brayton Joule)
- energy conversion machines and plants: operating principles, characteristic curves and fields of use for turbomachinery, in particular gas and steam turbines.
Target skills and knowledge: Acquire familiarity with the main characteristics of combined cycle gas turbines and CHP plants, mostly from the point of view of performance and their link with users' requests.
Acquire the ability to size the heat recovery steam generator taking into account technological, economic, space constraints.
Learn to consult the relevant legislation, in particular regarding cogeneration plants.
Learn to work in a group, defining the role of each participant of the group itself.
Learn how to present the results of the work clearly and concisely.
Learn to use software for simulation and optimization of micro networks.
Examination methods: oral exam and project or exercise
Assessment criteria: The oral examination on the whole program contributes 70% of the final grade for those who carried out the group project, 85% for the others. The presentation of the project is worth 30%, that of the exercise 15%.
By means of open questions, the understanding of the topics covered and the ability to apply the concepts proposed to complex cases are evaluated.
Regarding the presentation of the project or exercise, the ability to clearly and concisely show the results of one's work will be evaluated. Both the oral presentation and the power point (or similar) file will be taken into account. In particular, the candidate will have to make clear what were the starting data of the work, such as the constraints, such as the data he obtained from the literature or the catalogs of the manufacturers, such as his hypotheses, which criteria he used for optimization, which finally, the results obtained.
Course unit contents: - Combined plants (18 h): thermodynamic aspects and performance (8 h); the recovery boiler with one or more pressure levels: design and dimensioning (4 h) regulation (2 h); systems to increase flexibility (2 h); repowering and transformations in a combined system (2 h)
  Mixed gas-steam cycles (2 h)
- Cogeneration (20 h): regulations and general information; (4 h) Cogeneration steam plants (4 h) with description of the operating diagram; Cogeneration gas plants with turbines and with micro-turbines (4 h) and systems with internal combustion engines; ORC; cogeneration (4h)
- Sizing of a cogeneration plant for civil and industrial users (4 h):
- The Homer software (8 h): software description, simulation of cogeneration systems connected to the network, optimization of sizes and configuration, sensitivity analysis.
Planned learning activities and teaching methods: Frontal lessons. Some lessons (8 h) are carried out in a computer lab and involve the use of the Homer code. The course also includes technical visits to plants in the area (for example, an industrial cogeneration plant serving a cooking oven, a gas cogeneration plant for civil users, a combined large-scale and cogeneration plant for industrial users, a cogeneration plant service of a district heating network).
Additional notes about suggested reading: Material for the study is on-line at
Textbooks (and optional supplementary readings)

Innovative teaching methods: Software or applications used
  • Moodle (files, quizzes, workshops, ...)

Sustainable Development Goals (SDGs)
Clean Water and Sanitation Affordable and Clean Energy Climate Action