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- University
- Politecnico di Milano
- Degree programme
- Mechanical Engineering
- Subject
- Macchine (Propedeutico)
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- Other study material
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Page 1
Indice 1 Bilanci energetici 3 1.1 Gas Perfetti . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 Liquidi perfetti . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 Eulero 5 2.1 Equazioni di Eulero . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.2 Bilancio energetico per un sistema rotante . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 Similitudine idraulica 6 3.1 Coefficienti di portata e prevalenza . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3.2 Velocità e geometria specifiche . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3.3 Perdite distribuite e concentrate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 Pompe 7 4.1 Cavitazione . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4.2 Potenza . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4.3 Similitudine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4.4 Pompe in serie . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4.5 Pompe in parallelo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4.6 Grado di reazione . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5 T urbine idrauliche 9 5.1 Turbina Pelton . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5.2 Turbina Francis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6 T rasformazioni termodinamiche 11 6.1 Compressione isotermica . . . . . . . . . . . . . . . . . . . . . . . . . .…
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