WO1995011375B1 - Performance enhanced gas turbine powerplants - Google Patents
Performance enhanced gas turbine powerplantsInfo
- Publication number
- WO1995011375B1 WO1995011375B1 PCT/US1994/011830 US9411830W WO9511375B1 WO 1995011375 B1 WO1995011375 B1 WO 1995011375B1 US 9411830 W US9411830 W US 9411830W WO 9511375 B1 WO9511375 B1 WO 9511375B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- combustor
- fuel
- recited
- heat exchanger
- turbine
- Prior art date
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract 7
- 239000002826 coolant Substances 0.000 claims abstract 5
- 238000011084 recovery Methods 0.000 claims abstract 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract 3
- 239000001257 hydrogen Substances 0.000 claims abstract 3
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract 3
- 239000007789 gas Substances 0.000 claims abstract 2
- 239000000446 fuel Substances 0.000 claims 15
- 239000000203 mixture Substances 0.000 claims 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 2
- 239000003570 air Substances 0.000 abstract 1
- 230000003190 augmentative effect Effects 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 230000008016 vaporization Effects 0.000 abstract 1
- 238000009834 vaporization Methods 0.000 abstract 1
Abstract
A gas turbine driven powerplant (10) having one or more compressors (20, 22) for producing a down stream air flow, a compressor heat exchanger (34) positioned down stream of the compressors (20, 22) followed by a side stream flow coolant line (50), a regenerator (58) positioned down stream of the heat exchanger (34) and side stream coolant line (50), a combustor (48) positioned down stream of the regenerator (58), one or more turbines (24, 28) positioned down stream of the combustor (48) and mechanically coupled to the compressors (20, 22), and a power turbine (32) positioned down stream of the turbines (24, 28). Combustible effluent flows through heat exchanger (34) and to combustor (48), and air discharged from the compressors (20, 22) flows through heat exchanger (34) and to coolant line (50) and regenerator (58). Heat is transferred from the compressor discharge air to the combustible effluent, thereby producing cooling air and heating the combustible effluent. Heat exchanger (34) can be a heat exchanger or a methane/steam reformer which produces a hydrogen-rich, low NOx, steam diluted combustible effluent. In alternative embodiments, power output is augmented by injecting cooled compressed air directly into the combustor (48) to increase the mass flow through the turbines (24, 28, 32), and exhaust heat is recuperated with a counter-current flow of combustible and water, or water and air, in a conventional once-through heat recovery unit (118). In further embodiments, a small portion of the cool air is combined with the recuperation water in the heat recovery unit (118) to allow vaporization of the water throughout the initial portion of the heat exchange path and form a two-phased feed of water and air to the combustor (48). Additionally, in all embodiments a portion of the cooled compressed air can be processed by a compressor/expander for providing coolant to the turbines, compressors, and auxiliary equipment.
Claims
AMENDED CLAIMS
[received by the International Bureau on 18 August 1995 (18.08.95);
original claim 22 amended; remaining claims unchanged (2 pages)]
17. An apparatus as recited in claim 16, wherein said coil means carry a fuel/water mixture at varied pressures, wherein fuel exhausted by said turbine has a pressure lower than fuel input into said turbine, and wherein fuel exhausted by said compressor has a pressure higher than fuel input into said compressor, and wherein fuel exhausted by said turbine and said compressor mixes to form a single pressure fuel.
18. A gas turbine driven powerplant, comprising:
(a) compressor means for producing a downstream flow of air; (b) a heat exchanger positioned downstream of said compressor;
(c) a combustor positioned downstream of said heat exchanger; and
(d) a turbine positioned downstream of said combustor.
19. An apparatus as recited in claim 18, further comprising an exhaust heat recovery unit positioned downstream of said turbine, said heat recovery unit including effluent carrying coils.
20. An apparatus as recited in claim 18. wherein said heat exchanger includes fuel carrying coils.
21. An apparatus as recited in claim 20, further comprising steam raising means for pressure expansion and equalization of steam flowing through said fuel carrying coils. 22. An apparatus as recited in claim 21, wherein said steam raising means comprises:
(a) a steam turbine, said steam turbine including a fuel inlet coupled to said heat exchanger, said steam turbine including a fuel outlet coupled to said combustor;
(b) a compressor, said compressor including a fuel inlet coupled to said heat exchanger, said steam turbine including a fuel outlet coupled to said combustor. 23. An apparatus as recited in claim 20, further comprising methane-steam reformer means for receiving fuel from said fuel carrying coils and producing a hydrogen rich effluent for fueling said combustor.
24. An apparatus as recited in claim 23, wherein said reformer means receives effluent from said effluent carrying coils.
25. An apparatus as recited in claim 23, wherein said effluent carrying coils receive hydrogen rich effluent from said reformer means and wherein said effluent carrying coils are coupled to said combustor.
26. An apparatus as recited in claim 23, further comprising air duct means for carrying a side stream of coolant air to said effluent carrying coils, said reformer means coupled to said combustor, said effluent carrying coils coupled to said combustor wherein a mixture of air and water flows through said effluent carrying coils to said combustor.
27. An apparatus as recited in claim 18. further comprising a power turbine positioned downstream of said turbine. 28. An apparatus as recited in claim 27, further comprising a heat recovery unit positioned downstream of said power turbine.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7512152A JPH09506946A (en) | 1993-10-19 | 1994-10-18 | Gas turbine power plant with improved performance |
| EP95900368A EP0724685A1 (en) | 1993-10-19 | 1994-10-18 | Performance enhanced gas turbine powerplants |
| AU81208/94A AU8120894A (en) | 1993-10-19 | 1994-10-18 | Performance enhanced gas turbine powerplants |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13952593A | 1993-10-19 | 1993-10-19 | |
| US08/139,525 | 1993-10-19 | ||
| US08/182,661 | 1994-01-12 | ||
| US08/182,661 US5490377A (en) | 1993-10-19 | 1994-01-12 | Performance enhanced gas turbine powerplants |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| WO1995011375A2 WO1995011375A2 (en) | 1995-04-27 |
| WO1995011375A3 WO1995011375A3 (en) | 1995-08-24 |
| WO1995011375B1 true WO1995011375B1 (en) | 1995-09-21 |
Family
ID=26837310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1994/011830 WO1995011375A2 (en) | 1993-10-19 | 1994-10-18 | Performance enhanced gas turbine powerplants |
Country Status (7)
| Country | Link |
|---|---|
| US (4) | US5535584A (en) |
| EP (1) | EP0724685A1 (en) |
| JP (1) | JPH09506946A (en) |
| CN (1) | CN1136836A (en) |
| AU (1) | AU8120894A (en) |
| CA (1) | CA2174504A1 (en) |
| WO (1) | WO1995011375A2 (en) |
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- 1994-10-18 WO PCT/US1994/011830 patent/WO1995011375A2/en not_active Application Discontinuation
- 1994-10-18 EP EP95900368A patent/EP0724685A1/en not_active Ceased
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1995
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- 1995-10-31 US US08/550,597 patent/US5581997A/en not_active Expired - Fee Related
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