US6167706B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Externally fired combined cycle gas turbine
Assignee: Riken Vitamin Co Ltd
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Filing: 1997-11-17
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Granted: 2001-01-02
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Expires: 2017-11-17
Abstract
Abstract An externally fired gas turbine system according to the present invention has a compressor for compressing ambient air and producing compressed air, an air heat exchanger for heating the compressed air to produce heated compressed air, a turbine for expanding the heated compressed air to produce heat depleted expanded air, and a generator connected to the turbine for generating electricity. According to the present invention, the system also includes combustible products producing apparatus for processing fuel to produce combustible products that include combustible gases and an external combustion chamber for burning the combustible products and transferring heat to the air heat exchanger and producing heat depleted combustion products. The system also includes a closed Rankine cycle steam power plant having a water heat exchanger for vaporizing water and producing steam using heat contained in the heat depleted combustion products. The power plant further includes a steam turbine for expanding the steam producing power and expanded steam, and a steam condenser for condensing the expanded steam producing condensate that is returned to the water heat exchanger.
Inventors
- 👤 Lucien Y. Bronicki
- 👤 Daniel Goldman
- 👤 Joseph Sinia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:09
CPC Classifications
F; F02; F02C; F02C3/00; F02C3/20; F02C3/26; F01; F01K; F01K23/00; F01K23/02; F01K23/06; F01K23/10; F02C1/00; F02C1/04; F02C3/28; F02C6/00; F02C6/18; F02C7/00; F02C7/08; F05; F05D; F05D2220/00; F05D2220/70; F05D2220/72; Y; Y02; Y02E; Y02E20/00; Y02E20/16
Claims Analysis
Total Claims: 41
Claim 1
Independent Claim
178 words
A gas turbine power plant system of the type having a compressor which compresses ambient air, a heater which heats the compressed air and produces heated gas, a turbine which expands the heated and compressed gas producing power and expanded gas, said system comprising: a) combustible products producing apparatus which produces combustible products that include combustible gases; b) a closed organic Rankine cycle power plant having a heat exchange system including a vaporizer which vaporizes an organic working fluid and produces an organic working fluid vapor using heat contained in said expanded gas, an organic vapor turbine which expands the organic working fluid vapor and produces power and expanded organic working fluid vapor, an organic fluid condenser which condenses the expanded organic working fluid vapor and produces organic working fluid condensate whereby the organic working fluid condensate is returned to the vaporizer; and c) a thermal water fluid cycle containing water fluid which produces heated water fluid, the heat contained in the heated water fluid being transferred to said organic working fluid condensate via said heat exchange system.
Claim 2
Dependent Claim
178 words
A gas turbine power plant system of the type having a compressor which compresses ambient air, a heater which heats the compressed air and produces heated gas, a turbine which expands the heated and compressed gas producing power and expanded gas, said system comprising: a) combustible products producing apparatus which produces combustible products that include combustible gases; b) a closed organic Rankine cycle power plant having a heat exchange system including a vaporizer which vaporizes an organic working fluid and produces an organic working fluid vapor using heat contained in said expanded gas, an organic vapor turbine which expands the organic working fluid vapor and produces power and expanded organic working fluid vapor, an organic fluid condenser which condenses the expanded organic working fluid vapor and produces organic working fluid condensate whereby the organic working fluid condensate is returned to the vaporizer; and c) a thermal water fluid cycle containing water fluid which produces heated water fluid, the heat contained in the heated water fluid being transferred to said organic working fluid condensate via said heat exchange system.
Claim 3
Dependent Claim
77 words
A gas turbine power plant system according to claim 1 wherein heat contained in said expanded gas is transferred to said water fluid contained in said thermal water fluid cycle which produces heated water fluid and the heat contained in the heated water fluid is transferred to said organic working fluid condensate present in said heat exchanger system from which organic working fluid vapor is produced which is supplied to said organic vapor turbine which produces power.
Claim 4
Dependent Claim
78 words
A gas turbine power plant system according to claim 1 wherein said thermal water fluid cycle comprises a closed Rankine cycle power plant having a water heat exchanger which vaporizes water and produces steam using heat contained in said expanded gas, a steam turbine which expands the steam producing power and expanded steam, and a steam condenser which condenses the expanded steam and produces steam condensate and means for returning the steam condensate to the water heat exchanger.
Claim 5
Dependent Claim
33 words
A gas turbine power plant system according to claim 3 wherein the steam condenser is cooled by organic fluid and produces organic working fluid vapor which is supplied to said organic vapor turbine.
Claim 6
Dependent Claim
44 words
A gas turbine power plant system according to claim 3 wherein the steam condenser is cooled by organic fluid and produces pre-heated organic working fluid which is supplied to a vaporizer which produces organic working fluid which is supplied to said organic vapor turbine.
Claim 7
Dependent Claim
24 words
A gas turbine power plant system according to claim 1 wherein said heat exchanger system includes a pre-heater which pre-heats said organic working fluid.
Claim 8
Dependent Claim
40 words
A gas turbine power plant system according to claim 2 wherein said heat exchanger system includes said vaporizer which produces said organic working fluid vapor which is supplied to said organic vapor turbine that drives a generator and produces electricity.
Claim 9
Dependent Claim
22 words
A gas turbine power plant system according to claim 1 wherein said vaporizer includes a superheater which superheats said organic working fluid.
Claim 10
Dependent Claim
24 words
A gas turbine power plant system according to claim 8 wherein said heat exchanger system includes a pre-heater which pre-heats said organic working fluid.
Claim 11
Dependent Claim
24 words
A gas turbine power plant system according to claim 1 wherein said combustible gases are combusted in said heater which heats said compressed air.
Claim 12
Dependent Claim
28 words
A gas turbine power plant system according to claim 10 wherein said combustible gases which are combusted in said heater which heats said compressed air comprise natural gas.
Claim 13
Dependent Claim
27 words
A gas turbine power plant system according to claim 10 wherein said combustible gases which are combusted in said heater are combusted in an external combustion chamber.
Claim 14
Dependent Claim
30 words
A gas turbine power plant system according to claim 1 wherein said combustible products producing apparatus which produces combustible gases comprises a pyrolyzer which produces combustible gases from oil shale.
Claim 15
Dependent Claim
29 words
A gas turbine power plant system according to claim 1 wherein said combustible products producing apparatus which produces combustible gases comprises apparatus which produces combustible gases from oil shale.
Claim 16
Dependent Claim
33 words
A gas turbine power plant system according to claim 1 wherein said combustible products producing apparatus which produces combustible gases comprises apparatus which produces combustible gases from oil shale and sulfur rich fuel.
Claim 17
Dependent Claim
27 words
A gas turbine power plant system according to claim 15 wherein said combustible gases which are combusted in said heater are combusted in an external combustion chamber.
Claim 18
Dependent Claim
19 words
A gas turbine power plant system according to claim 15 wherein said sulfur rich fuel is heavy fuel oil.
Claim 19
Dependent Claim
17 words
A gas turbine power plant system according to claim 1 wherein said organic working fluid is n-pentane.
Claim 20
Dependent Claim
17 words
A gas turbine power plant system according to claim 1 wherein said organic working fluid is isopentane.
Claim 21
Independent Claim
170 words
A method for producing power using a gas turbine power plant system of the type having a compressor that compresses ambient air, a heater which heats the compressed air and produces heated gas, a turbine that expands the heated and compressed gas producing expanded gas and power, said method comprising: a) producing combustible products including combustible gases using combustible products producing apparatus; b) producing power using a closed organic Rankine cycle power plant having a heat exchanger system including a vaporizer that vaporizes an organic working fluid and produces an organic working fluid vapor, an organic working fluid vapor turbine that expands the organic working fluid vapor and produces power and expanded organic working fluid vapor, an organic fluid condenser that condenses the expanded organic working fluid and produces organic working fluid condensate whereby the organic working fluid condensate is returned to the vaporizer; and c) transferring heat contained in heated water fluid in a thermal water fluid cycle to said organic working fluid condensate via said heat exchanger system.
Claim 22
Independent Claim
170 words
A method for producing power using a gas turbine power plant system of the type having a compressor that compresses ambient air, a heater which heats the compressed air and produces heated gas, a turbine that expands the heated and compressed gas producing expanded gas and power, said method comprising: a) producing combustible products including combustible gases using combustible products producing apparatus; b) producing power using a closed organic Rankine cycle power plant having a heat exchanger system including a vaporizer that vaporizes an organic working fluid and produces an organic working fluid vapor, an organic working fluid vapor turbine that expands the organic working fluid vapor and produces power and expanded organic working fluid vapor, an organic fluid condenser that condenses the expanded organic working fluid and produces organic working fluid condensate whereby the organic working fluid condensate is returned to the vaporizer; and c) transferring heat contained in heated water fluid in a thermal water fluid cycle to said organic working fluid condensate via said heat exchanger system.
Claim 23
Dependent Claim
70 words
A method according to claim 20 including transferring heat contained in said expanded gas to said water fluid contained in said thermal water fluid cycle that produces heated water fluid, the heat contained in the heated water fluid being transferred to said organic working fluid condensate present in said heat exchanger system from which organic working fluid vapor is produced that is supplied to said vapor tubine which produces power.
Claim 24
Dependent Claim
64 words
A method according to claim 20 including vaporizing water in a water heat exchanger contained in said thermal water fluid cycle and producing steam using heat contained in said expanded gas, expanding the steam in a steam turbine producing power and expanded steam, and condensing said expanded steam in a steam condenser and producing steam condensate which is returned to the water heat exchanger.
Claim 25
Dependent Claim
28 words
A method according to claim 22 including cooling the steam condenser by organic fluid and producing organic working fluid vapor that is supplied to said organic vapor turbine.
Claim 26
Dependent Claim
40 words
A method according to claim 22 including cooling the steam condenser by organic fluid and producing pre-heated organic working fluid that is supplied to a vaporizer that produces organic working fluid vapor that is supplied to said organic vapor turbine.
Claim 27
Dependent Claim
21 words
A method according to claim 20 including pre-heating said organic working fluid using a pre-heater contained in said heat exchanger system.
Claim 28
Dependent Claim
43 words
A method according to claim 21 including vaporizing said organic working fluid using a vaporizer contained in said heat exchanger system that produces said organic working fluid vapor that is supplied to said organic vapor turbine that drives a generator and produces electricity.
Claim 29
Dependent Claim
12 words
A method according to claim 20 including superheating said organic working fluid.
Claim 30
Dependent Claim
21 words
A method according to claim 27 including pre-heating said organic working fluid using a pre-heater contained in said heat exchanger system.
Claim 31
Dependent Claim
19 words
A method according to claim 20 including combusting said combustible gases in said heater that heats said compressed air.
Claim 32
Dependent Claim
18 words
A method according to claim 29 including combusting natural gas in said heater that heats said compressed air.
Claim 33
Dependent Claim
15 words
A method according to claim 29 including combusting combustible gases in an external combustion chamber.
Claim 34
Dependent Claim
26 words
A method according to claim 20 including pyrolyzing solid fuel in a pyrolyzer that is part of said combustible products producing apparatus that produces combustible gases.
Claim 35
Dependent Claim
26 words
A method according to claim 32 including pyrolyzing oil shale in a pyrolyzer that is part of said combustible products producing apparatus that produces combustible gases.
Claim 36
Dependent Claim
23 words
A method according to claim 20 including producing combustible gases using said combustible products producing apparatus from solid fuel and sulfur rich fuel.
Claim 37
Dependent Claim
23 words
A method according to claim 34 including producing combustible gases using said combustible products producing apparatus from oil shale and sulfur rich fuel.
Claim 38
Dependent Claim
16 words
A method according to claim 34 including combusting said combustible gases in an external combustion chamber.
Claim 39
Dependent Claim
23 words
A method according to claim 34 including producing combustible gases using said combustible products producing apparatus from solid fuel and heavy fuel oil.
Claim 40
Dependent Claim
24 words
A method according to claim 20 including producing power using a closed organic Rankine cycle power plant using n-pentane as the organic working fluid.
Claim 41
Dependent Claim
24 words
A method according to claim 20 including producing power using a closed organic Rankine cycle power plant using isopentane as the organic working fluid.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-01-02 | 2004-07-03 | 2005-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-01-02 | 2008-07-03 | 2009-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-01-02 | 2012-07-03 | 2013-01-02 | $7700.00 | Window Closed / Lapsed |