Unit MACHINE
- Course
- Industrial engineering
- Study-unit Code
- 70300012
- Curriculum
- In all curricula
- Teacher
- Francesco Fantozzi
- CFU
- 12
- Course Regulation
- Coorte 2022
- Offered
- 2024/25
- Type of study-unit
- Obbligatorio (Required)
- Type of learning activities
- Attività formativa integrata
POWER PLANTSDESIGN & OPTIMIZATION
| Code | 70002806 |
|---|---|
| CFU | 6 |
| Teacher | Francesco Fantozzi |
| Teachers |
|
| Hours |
|
| Learning activities | Caratterizzante |
| Area | Ingegneria energetica |
| Academic discipline | ING-IND/08 |
| Type of study-unit | Obbligatorio (Required) |
| Language of instruction | Italian |
| Contents | General thermodynamic - Steam plants - Gas Turbines - Internal combustion engines - Gas-steam cycles - Nuclear and fuel cell basics - Renewables |
| Reference texts | C. Caputo, "Impianti termici" Ed. Masson S. Stecco, G. Manfrida, "Impianti di conversione energetica", Pitagora. Slides |
| Educational objectives | 1st & 2nd law analysis of energy systems and components. Design and operation of energy systems based on steam and or gas cycles, internal combustion engines, nuclear and renewables |
| Prerequisites | Aoplied Physiscs |
| Teaching methods | Frontal lessons and numerical exercises |
| Other information | na |
| Learning verification modality | Written test (50% min score 15/30): n.1 numerical design case of an energy plant or a component. Oral test (50% min score 18/30): n.2 open questions on powerplants and components. Info on facilities for students with special needs available at https://www.unipg.it/en/international-students/general-information/facilities-for-special-needs-students |
| Extended program | Essential Thermodynamics, 1st & 2nd law, exergy - Steam cycles – performance and - improvements - Regeneration - reheat - Air-fumes and water-steam circuits - Components - Gas turbine cycles - performance and improvements - Regeneration – Inter cooling - post combustion – Layout and Components - Gas-steam cycles: Combined cycles - STIG, HAT & RWI – Basics of aerospace propulsion - Internal combustion engines - Cycles: Beau de Rochas - Otto - Diesel - Sabbathè Performance and components for 2 & 4 strokes engines -- Nuclear Energy; Renewable energies: Solar - Wind - Hydro - Geothermal - Biomass & Waste |
| Obiettivi Agenda 2030 per lo sviluppo sostenibile | 7-11-12 |
TURBOMACHINERY DESIGN & OPTIMIZATION
| Code | 70034406 |
|---|---|
| CFU | 6 |
| Teacher | Mauro Zampilli |
| Teachers |
|
| Hours |
|
| Learning activities | Caratterizzante |
| Area | Ingegneria energetica |
| Academic discipline | ING-IND/08 |
| Type of study-unit | Obbligatorio (Required) |
| Language of instruction | ITALIAN |
| Contents | - Introduction to fluid and thermal machines - power generating turbomachines operating with compressible fluid - power absorbing turbomachines operating with compressible fluid - power generating turbomachines operating with incompressible fluid - power absorbing turbomachines operating with incompressible fluid - Power generating and power absorbing volumetric machines |
| Reference texts | Teacher and personal notes. Course Book: C. Caputo, Le Turbomacchine, Ambrosiana 1994 Additional reference books: - V. Dossena et al., Macchine a fluido, Città Studi Edizioni, 2° edizione, 2020 - G. Bidini, Turbomacchine, Ed. Anteo, Perugia, 2008 - G. Manfrida, S. Stecco, Le Turbomacchine, Pitagora Ed. 1993 - G. Cornetti, F. Millo, Macchine Idrauliche, Il Capitello, Torino, 2015 |
| Educational objectives | Acquire technical and designing knowledge and skills concerning the analyisis, selection and preliminary dimension of fluid machinery components. |
| Prerequisites | Knowledge of previous courses: Physiscs, Applied Physiscs and Mathematical Analysis |
| Teaching methods | - Lectures - Exercises |
| Learning verification modality | - Written test - Oral tests |
| Extended program | - Introduction to fluid and thermal machines. Classification of Fluid Machinery: turbo- and volumetric machines, incompressible and compressible fluid, power generating and absorbing machines. Basic equation of fluid mechanic and thermodynamic: Momentum and Energy conservation. Thermodynamic Laws revision: I and II Laws on open and closed systems. Real fluids properties: specific heat, State Equation for Perfect and ideal gas. Thermodynamic transformations at different conditions: equations for calculating compression/expansion works, heat exchange, Internal Energy, Enthalpy and Entropy change. Turbine blades, phenomenology of the flow through orifices and blade passages. - Power generating turbomachines operating with Compressible fluid: steam turbines and gas turbines. Fluid dynamics of expansion nozzles, rotating and fixed vanes; static and total flow quantities; Hugoniot equations; Stodola cone, criteria for nozzle sizing; velocity triangles; work exchange between fluid and blades; degree of reaction; stage efficiency; volumetric efficiency; effect of steam humidity; multi-stage turbines; turbine types; three-dimensional effects; part-load operation of turbines. Basics of radial flow turbines. Steam turbine and gas turbine stages. Refrigeration of gas turbine blades. Dimensiong of turbines stages with degree of rection 0 and 0.5; dimensioning of multistages turbines with degree of reaction 0 (Curtis wheel). - Power absorbing turbomachines operating with Compressible fluid: centrifugal and axial compressors. Introduction to centrifugal compressors; velocity triangles; dimensional analysis; flow and pressure coefficients; performance curves; slip factor, diffuser and volute. Sizing of a centrifugal compressor. Introduction to axial compressors; blades, vanes, stages; velocity triangles; dimensional analysis; flow and pressure coefficients; performance curves. Sizing of an axial compressor stage. Compressors in a system; stalling and surging. - Theory of similitude, dimensional analysis. Reynolds number, Mach number, the specific speed, flow coefficients and pressure coefficient. - Power generating turbomachines operating with Incompressible fluid: hydraulic turbines. Equations for incompressible flows; Bernoulli's equation; basics of hydroelectric power generation. Hydraulic turbine features; Pelton, Francis and Kaplan turbines. Degree of reaction; velocity triangles; dimensional analysis; flow and pressure coefficients; performance curves. Diffuser employment in Francis and Kaplan turbines-based power plant for energy recovery. Cavitation. - Power absorbing turbomachines operating with Incompressible fluid: pumps. Centrifugal pumps. Blades, vanes, velocity triangles; performance curves; diffuser, volute. Cavitation. NPSH, Pump-circuit system. Serial and parallel configuration. Centrifugal pump design. - Volumetric power generating and power absorbing machines. Positive displacement machines: volumetric pumps, piston pumps, screw pumps. Performance curves. |