Patent US3006598A successfully refreshed from Google Patents.
Patent US6178735B1 successfully refreshed from Google Patents.
US6178735B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined cycle power plant
Assignee: Alstom SA
•
Filing: 1998-12-10
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Granted: 2001-01-30
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Expires: 2018-12-10
Abstract
Abstract In a method for operating a gas turbo-generator set (GT), the caloric potential of the exhaust gases ( 14 ) from the gas turbo-generator set (GT) is utilized by guiding them through a heat exchanger ( 5 ) which is operatively connected to a hot-air turbo-generator set (LT). A compressor ( 7 ) associated with this hot-air turbo-generator set (LT) is operated isothermally by means of point-focused or continuous water injection ( 24 ), and, after expansion ( 6 ) has taken place, the injected water is collected by condensation ( 19 ) in a separator ( 10 ). A circuit is thus provided, in which the adaptation of assemblies in order to achieve maximized efficiency is avoided.
Inventors
- 👤 Hans Ulrich Frutschi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:20
CPC Classifications
F; F02; F02C; F02C1/00; F02C1/04; F02C1/10; F01; F01K; F01K21/00; F01K21/04; F02C1/007; F02C6/00; F02C6/18; F02C7/00; F02C7/12; F02C7/14; F02C7/141; F02C7/143; F02C7/1435; Y; Y02; Y02E; Y02E20/00; Y02E20/16
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
91 words
A method for operating a gas turbo-generator set with single stage or multistage combustion, comprising the steps of providing a heat exchanger for further utilization of the caloric potential of exhaust gases from a turbine associated with the gas turbo-generator set, wherein a hot-air turbo-generator set is operatively connected to the heat exchanger; approximately simulating isothermal compression by water injection which is carried out in a compressor associated with the hot-air turbo-generator set; and after expansion has taken place by an expander, collecting the injected water by condensation in a separator.
Claim 2
Independent Claim
91 words
A method for operating a gas turbo-generator set with single stage or multistage combustion, comprising the steps of providing a heat exchanger for further utilization of the caloric potential of exhaust gases from a turbine associated with the gas turbo-generator set, wherein a hot-air turbo-generator set is operatively connected to the heat exchanger; approximately simulating isothermal compression by water injection which is carried out in a compressor associated with the hot-air turbo-generator set; and after expansion has taken place by an expander, collecting the injected water by condensation in a separator.
Claim 3
Independent Claim
23 words
The method as claimed in claim l, wherein the water is collected in the separator is recirculated for water injection into the compressor.
Claim 4
Dependent Claim
46 words
The method as claim in claim 1 , wherein part of the air occurring from the separator is introduced into the intake air of a compressor associated with the gas turbo-generator set or into the process air of a turbomachine associated with the gas turbo-generator set.
Claim 5
Dependent Claim
25 words
The method as claimed in claim 1 , wherein the air occurring in the separator is introduced into the compressor of the hot-air turbo-generator set.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-01-30 | 2004-07-31 | 2005-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-01-30 | 2008-07-31 | 2009-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-01-30 | 2012-07-31 | 2013-01-30 | $7700.00 | Window Closed / Lapsed |