Closed circuit air cooled gas turbine combined cycle
US5491971A · kind A · utility
30Cited by
13References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1993 |
| Grant date | Feb 20, 1996 |
| Priority date | — |
| Expiry date | Dec 23, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E20/16
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a combined cycle system (10) which includes a gas turbine (12), a steam turbine (20); and at least one heat recovery steam generator (34) including evaporator(s) (38, 42, 46) operating at one or more pressures, and where condensate from the steam turbine (20) is evaporated by exhaust gas from the gas turbine (12) and returned to the steam turbine (20), the improvement comprising a closed loop cooling air circuit arranged such that hot cooling air from the gas turbine (12) is passed in heat exchange relationship with water from that one or more of the evaporators (46) in the heat recovery steam generator (34).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.