COGENERATION AND ENERGY SAVING PLANTS

Course objectives

Il corso vuole fornire agli studenti gli elementi necessari a comprendere vantaggi e svantaggi degli impianti combinati e cogenerativi, le principali configurazioni adottate e i cicli da esse realizzati, i campi di applicazione, i componenti e le relative caratteristiche, e i sistemi di regolazione. Si forniscono inoltre le basi per il calcolo dei principali indici di risparmio energetico utilizzati dalla normativa per l'assegnazione di incentivi dedicati agli impianti ad alta efficienza.

Channel 1
PAOLO VENTURINI Lecturers' profile

Program - Frequency - Exams

Course program
MODULE "ENERGY SYSTEM ANALYSIS " - towards a new concept of electric power generation: the “distributed generation” - A new network: the European Grid - The new decrees on the liberalization of energy trading and the role of Escos - Legislative updates: Legislative Decree 102/2014 and obligations for companies and the Public Administration - Gas and electricity market new scenarios - Energy in industrial plants Company energy system: The company energy balance - Industrial plants Conventional energy sources and electrical and thermal renewable energy sources MODULE "ENERGY EFFICIENCY IN INDUSTRIAL PLANTS" - European and national reference framework - Regulation and incentives for energy efficiency "Energy efficiency" key driver in solving the energy problem and economic development - State of the art and perspectives of energy efficiency in the ISO 50001 - Regulatory context: objectives and regulations in the industrial field and political guidelines - Analysis of barriers to the development of energy efficiency energy analysis applied to the industrial sector - Energy efficiency in industry Energy efficiency potential: Technologies Actors in the supply chain: Energy Agency, Esco (Energy Service Company) - Energy manager – Energy distributors The energy services market Energy efficiency markets renewable sources: Mechanism of white certificates - Research and technological innovation: potential and criticality Principles of eco-design in the industrial sector - Energy efficiency measures "ENERGY DIAGNOSIS, ENERGY AUDITING, MONITORING & CONTROL" MODULE - Energy Diagnosis Definitions, objectives implementation procedure - Energy Auditing Definitions, objectives procedure - Energy auditing phases - Industrial Site and user analysis • Geographical, climatic and urban context; • Project data: casing – electrical and thermal systems – process systems • Energy usage profiles: on-site inspections and surveys • Data acquisition and analysis of historical energy billing data • Energy consumption and expenses by energy vector • Evaluation of supply contracts • Technical and economic feasibility analysis of energy saving and requalification interventions • Energy auditing levels MODULE “COGENERATION AND TRIGENERATION TECHNOLOGIES” Definition and energy balance of a cogeneration plant - Performance indices and energy savings - White certificates and High Efficiency Cogeneration - Cogeneration for the industrial field - Gas turbines Cogeneration - Real gas turbine plant characteristic quantities - Heat Recovery Steam Generators : description; heat exchange; afterburning - Simple recovery gas turbines cogeneration plants : operation, plant layout and control • STIG cogeneration plants: operation, plant diagram and control • Combined cogeneration plants: operation, plant layout and control Steam turbine cogeneration • Main features • Back pressure steam turbines cogeneration • Condensing steam turbines Cogeneration - Small scale cogeneration Microgasturbines Cogeneration • Plant diagram; main differences compared to conventional gas turbine plants Internal Combustion Engines (reciprocating) Cogeneration • Types of engines; sizes; fuels; supercharging; heat recovery points, plant configuration Fuel Cells Cogeneration • Operation; classification; Main characteristics; plant diagrams of cogeneration with low and high temperature fuel cells; installations fuel cell-gas microturbine hybrid cogeneration plants - Trigeneration in industrial and civil fields Introduction • Definition; main components of a trigeneration plant; Energy saving Index Refrigerating machines for trigeneration • Vapor compression refrigerating machines/heat pumps • Absorption refrigeration machines • Prime mover with heat recovery and absorption refrigerator • Prime mover with heat recovery and vapor compression refrigerator/heat pump • Prime mover with heat recovery and absorption refrigerator and vapor compression refrigerator/heat pump - District heating and district cooling Introduction • Regulatory definition; classifications • Main components: production plant; transport and distribution network; pumping and heat exchange substations • Short and long term heat storage systems
Prerequisites
There are no mandatory requirements for the exam. The attendance of Power Plants and Physics I is strongly recommended.
Books
"Energy Management” Nino Di Franco, Franco Angeli “La microcogenerazione a gas naturale" Macchi AA.VV., Polipress “Impianti combinati” Lozza, Esculapio
Teaching mode
The course is held with frontal lessons in classroom
Frequency
The course is quarterly composed of 60 hours, classes are taking place two days a week. Attendance is not compulsory but strongly recommended.
Exam mode
The exam includes 4 open-ended questions/exercises covering the entire course program; there is no oral exam. The final mark is the average of the marks obtained for each single answer. In order to pass the exam, it is necessary to reach a mark of at least 18 in 3 out of 4 answers.
Lesson mode
The course is in co-teaching, with two sections, the first relating to energy efficiency and diagnostic tool, the second to cogeneration and trigeneration technologies.
LUCA CEDOLA Lecturers' profile
  • Lesson code10600011
  • Academic year2024/2025
  • CourseEnergy Engineering
  • CurriculumIngegneria Energetica (percorso valido anche ai fini del conseguimento del doppio titolo italo-venezuelano)
  • Year3rd year
  • Semester1st semester
  • SSDING-IND/09
  • CFU6
  • Subject areaIngegneria meccanica