1

Impianti per l’energia

• A lezione si sono commentate solo le diapositive 4-7

• La lezione va integrata con il materiale spiegato alla lavagna.

2

I cicli complessi delle Turbine a Gas

3

4

Interrefrigerazione (Intercooling): applicazioni

5

Rigenerazione (Recuperation): applicazioni

Turbec T100

Nominal PropertiesPower: 100 kWeRotational speed: 70000 rpmCompression ratio: 4.5TIT: 950°CTOT: 645°C

Recuperator

Combustor

Generator

Compressor

Turbine

Oil pump

Air intake filter

Water pump

Recuperator

Combustor

Generator

Compressor

Turbine

Oil pump

Air intake filter

Water pump

Recuperator

Combustor

Generator

Compressor

Turbine

Oil pump

Air intake filter

Water pump

Legend: 1. Generator; 2. Inlet air; 3. Combustion chamber; 4. Air to recuperator; 5. Compressor; 6. Turbine; 7. Recuperator; 8. Exhaust gases; 9. Exhaust gas heat exchanger; 10. Exhaust gas

6

Interrefrigerezione e rigenerazione : applicazioni

7

ALSTOM GT24 (60Hz) and GT26 (50Hz) 250 MW class re-heated gas turbines

Ri-combustione o combustione sequenziale (re-heat or sequential combustion)

8

Ciclo STIG o Ciclo STIG o ChengCheng(STeam Injected Gas turbine cycle) C E

M IX

SH EVA ECO

FILTER

to stack

~blade cooling

9

SAT

CC EE

RECREC

~~

ECOECO

Ciclo HATCiclo HAT(Humid Air Turbine)

10

Sistema ibrido Rolls-Royce Fuel Cell Systems(250kWe, SOFC)

Sistema ibrido Rolls-Royce Fuel Cell Systems(250kWe, SOFC)

Sistema ibrido Siemens-Westinghouse(250kWe, SOFC)

Sistema ibrido Siemens-Westinghouse(250kWe, SOFC)

Sistema ibrido Ansaldo Fuel Cell(250kWe, MCFC

Sistema ibrido Ansaldo Fuel Cell(250kWe, MCFC

Sistemi ibridi Turbina a gas e celle a combustibile (T>600°C): applicazioni

SOFC electric power (>80%)

GT electric power (<20%)

11

Nomenclatura:FC Fuel CellTPV Thermo-PhotoVoltaicTG Turbo Gas (AD = Aeroderivative; HD = Heavy-Duty)TV Turbina a VaporeUSC Impianti a vapore Ultra Super CriticiIGCC Integrated Gasification Combined Cycle