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Politecnico di Torino
Academic Year 2017/18
01QMBMK, 01QMBJM, 01QMBLI, 01QMBLM, 01QMBLN, 01QMBLP, 01QMBLS, 01QMBLX, 01QMBLZ, 01QMBMA, 01QMBMB, 01QMBMC, 01QMBMH, 01QMBMN, 01QMBMO, 01QMBMQ, 01QMBNX, 01QMBOA, 01QMBOD, 01QMBPC, 01QMBPI, 01QMBPL
Combined Heat and Power (CHP) Plants
1st degree and Bachelor-level of the Bologna process in Energy Engineering - Torino
1st degree and Bachelor-level of the Bologna process in Mechanical Engineering - Torino
1st degree and Bachelor-level of the Bologna process in Automotive Engineering - Torino
Espandi...
Teacher Status SSD Les Ex Lab Tut Years teaching
Poggio Alberto   RC ING-IND/09 48 12 0 0 6
SSD CFU Activities Area context
ING-IND/09 6 D - A scelta dello studente A scelta dello studente
Subject fundamentals
The energy generation is changing quickly. Conventional power plants give the way to more efficient energy conversions by combined heat and power (CHP) generation. Thermal renewables sources (such as biomass) need CHP to achieve higher utilization of their potential.
This course aim to give the main concepts for design and operation of these new solutions. Applications in industry and local energy systems (such as district heating) are analysed with examples and exercises.
Expected learning outcomes
Basis knowledge of technologies and main applications for:
- conventional water-steam and gas turbine CHP plants
- microturbines
- combined cycle CHP plants
- biomass-to-energy and waste-to-energy CHP plants


Main concepts and criteria for:
- design, simulation and operation of CHP plants and district heating systems
- integration of thermal renewables sources in industrial and local energy systems
Prerequisites / Assumed knowledge
Basis knowledge of Machinery fundamentals, Applied energy and renewable sources
Contents
Introduction to combined heat and power (CHP) generation [6 h]
Energy balance of a thermal power plant in full electric or CHP operation. CHP definition. Energy efficiencies and indexes. Analysis of heat and power generation costs.

Steam CHP plants [12 h]
Fundamentals of water-steam cycle (Rankine-Hirn). System configurations: back-pressure and extraction steam cycle. Main industrial applications. Municipal Solid Waste to energy plants.
Organic Rankine Cycle (ORC). Fundamentals, type of working fluids employed. System configurations: coupling problems with heat sources; regenerative cycle. Main industrial applications. Wood Biomass to energy plants.



Gas turbine CHP plants [12 h]
Fundamentals of gas cycle (Brayton-Joule). System configurations: coupling with heat recovery steam generator, duct burning, steam-injection cycle. Main industrial applications.
Microturbines. System configurations: regenerative cycle and variable speed. Main applications in residential and commercial sectors.


Combined cycle CHP plants [12 h]
Coupling gas cycle with steam cycle. Definition of energy efficiency in combined cycle. System configurations: heat recovery steam generators, CHP operation. Main industrial applications and district heating.
Internal combustion engine and ORC combined cycle.


Analysis of CHP plants (outline) [6 h]
Fundamentals and main criteria about design and operating of CHP plants and district heating systems. Peculiarities of renewable energy plants. Example of district heating system fuelled by wood biomass.
Models for simulation of CHP plants: examples of commercial simulation codes.
Delivery modes
Exercises [12 h]
4 modules of exercise, with the elaboration in the classroom of numerical exercises based on practical issues in the application of the concepts learnt during lectures.

Visits
1 visit at a CHP plant in operation.
Texts, readings, handouts and other learning resources
Lecture notes
Lozza, G., "Turbine a gas e cicli combinati", Esculapio, 2006
Macchi E., Campanari S., Silva P., La microcogenerazione a gas naturale, Polipress, 2005
Assessment and grading criteria
The exam consists of an oral test.

Programma definitivo per l'A.A.2017/18
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