Università Roma Tre

Classification and characterisation of fluid machines. Principles underlying volumetric machines and turbomachines. Performance of a fluid machine. Models to study fluid machines.
Positive displacement machines (pumps and compressors): indicator diagrams, influence of the inertia of the working fluid on performance, power consumption and efficiency, off-design performance and control. .
Turbomachines: flow through stationary and moving ducts, Euler equation and energy equation, velocity vector triangles, degree of reaction.
Hydraulic turbines: power and efficiency, main kinds of turbines.
Turbines for compressible flow: impulse and reaction axial stages, blade efficiency and stage efficiency. Power limits of a turbine. Off-design performance and control.
Work absorbing turbomachines (pumps and compressors): characteristic curves, application of similarity laws, cavitation problems, joint performance of machine and fluid supply system.

Thermal power plants. Combustion and fuels. Plant efficiency.
Steam power plants: Hirn’s cycle, effect of steam parameters on cycle performance, regenerative heating of feed-water. Plant based on Organic Rankine Cycle (ORC)
Gas Turbine plants: thermodynamic cycle analysis, regenerative heating, state of-the-art and future trends.
Gas-steam combined plants: thermodynamic cycle analysis, plant performance.
CHP plants: performance indexes, analysis of most common cogenerative plant typologies. .
Refrigeration plants: reference thermodynamic cycles, heat pumps.

Reference texts:
CAPUTO C., “Gli impianti convertitori di energia”, ed. Masson, Milano, 1997,
CAPUTO C., “Le turbomacchine”, ed. Masson, Milano, 1994;
CAPUTO C., “Le macchine volumetriche”, ed. Masson, Milano, 1997.