[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

US20080060340A1 - Work extraction arrangement - Google Patents

Work extraction arrangement Download PDF

Info

Publication number
US20080060340A1
US20080060340A1 US11/979,586 US97958607A US2008060340A1 US 20080060340 A1 US20080060340 A1 US 20080060340A1 US 97958607 A US97958607 A US 97958607A US 2008060340 A1 US2008060340 A1 US 2008060340A1
Authority
US
United States
Prior art keywords
working fluid
work
gas
turbine
extraction arrangement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US11/979,586
Inventor
Paul Fletcher
James Oswald
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rolls Royce PLC filed Critical Rolls Royce PLC
Priority to US11/979,586 priority Critical patent/US20080060340A1/en
Publication of US20080060340A1 publication Critical patent/US20080060340A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
    • F02C6/14—Gas-turbine plants having means for storing energy, e.g. for meeting peak loads
    • F02C6/16—Gas-turbine plants having means for storing energy, e.g. for meeting peak loads for storing compressed air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids

Definitions

  • This invention relates to work extraction arrangements. More particularly, but not exclusively, the invention relates to electricity generating apparatus using liquefied air.
  • the generation of electricity by burning fuel in a gas turbine engine requires the fuel to be piped to the engine.
  • the fuel occurs in offshore fields and sometimes these fields are located at distances which make the extraction of the fuel unattractive. These fields are known as “stranded fields”.
  • a recent approach is to locate the gas turbine engine at the stranded fields to burn the fuel and generate electricity.
  • Electric cables are provided to carry the electricity to the grid/users.
  • wind turbines have been located at the stranded fields and use the same electric cable. The turbines are easily switched on/off to match the load demand on the grid. However, the wind turbines may only provide power when the wind blows.
  • a work extraction arrangement comprising a cooling assembly for cooling a gas to provide a working fluid capable of doing work, storage means for storing the working fluid, a turbine assembly for extracting work from the working fluid, and a fluid delivery assembly for delivering the working fluid to the turbine assembly.
  • a method of extracting work from a gas comprising cooling the gas to provide a working fluid capable of doing work, storing the working fluid, delivering the working fluid to a turbine assembly whereby work can be extracted from the working fluid by the turbine assembly.
  • the fluid delivery assembly comprises a pumping means.
  • the fluid delivery assembly may comprise a pump, which may be suitable for pumping a liquefied gas.
  • the pump may be suitable for pumping a mixture of gas and liquefied gas.
  • the pump may be suitable for pumping a wholly liquefied gas.
  • the fluid delivery assembly comprises a main compressor, whereby when the fluid delivered to the main compressor is in the form of a gas, the main compressor can compress the gas.
  • the fluid delivered to the main compressor may be in the form of a mixture of a gas and liquefied gas.
  • the main compressor may be a compressor of a gas turbine engine.
  • the turbine assembly may comprise at least one main turbine for extracting work from the working fluid, and may include a combustor for combusting the working fluid when the working fluid comprises a combustible gas.
  • the combustor is arranged upstream of the turbine assembly.
  • the main turbine is operable by the combustion products of the working fluid.
  • the work extraction arrangement may comprise an electricity generator, which may be driven by the turbine assembly.
  • the turbine assembly may be a turbine assembly of a gas turbine engine.
  • the cooling assembly may comprise a cooling cycle compressor for compressing the gas for cooling purposes.
  • the cooling assembly may comprise a heat extractor for extracting heat from the compressed gas.
  • the heat extractor may comprise a heat exchanger to exchange heat with the surroundings, e.g. the sea or the atmosphere.
  • the cooling assembly may comprise a cooling cycle turbine to extract preliminary work from the compressed gas thereby cooling the gas to provide said working fluid.
  • the working assembly may be driven by a wind turbine or other renewable energy source.
  • the cooling assembly may be driven by electricity at night time, which is less expensive than electricity produced during daylight hours.
  • the working fluid provided by the cooling assembly may be in liquid or gaseous form.
  • the work extraction arrangement may comprise a heater for heating the working fluid downstream of the fluid delivery assembly.
  • the working fluid heater may comprise a heat exchanger.
  • the heat exchanger is arranged to exchange heat with the surroundings, for example, the sea or the atmosphere.
  • the work extraction arrangement may further comprise a recuperating heat exchanger, whereby exhaust gases from the main turbine can exchange heat with gas to be delivered to the combustor.
  • FIG. 1 shows a schematic diagram of a first embodiment of a work extraction arrangement
  • FIG. 2 is a schematic diagram of a second embodiment of a work extraction arrangement
  • FIG. 3 is a schematic diagram of a third embodiment of a work extraction arrangement.
  • a work extraction arrangement 10 comprising a cooling assembly 12 for cooling and liquefying a gas, for example, air, to produce a working fluid, such as liquefied air.
  • the arrangement also includes storage means 14 for storing the liquefied air, a fluid delivery assembly 16 for delivering the liquefied air to a turbine assembly 18 to extract work from the working fluid.
  • a heat exchanger 20 is provided downstream of the fluid delivery assembly 16 to extract heat from the atmosphere and heat the liquefied air, as represented by the arrow A.
  • the liquefied air is heated to provide gaseous air.
  • an alternator 22 Downstream of the turbine assembly 18 there is provided an alternator 22 for generating electrical power 23 .
  • the alternator 22 is driven by the turbine assembly 18 , as explained below.
  • the cooling assembly 12 comprises a wind turbine 24 which drives a compressor 26 having an air inlet 28 .
  • the compressor 26 could be driven by an electric motor, which is powered by cheaper electricity during the night.
  • Air compressed by the compressor 28 passes through a heat exchanger 30 where heat is extracted and transferred to the surroundings, for example the sea or the atmosphere, as represented by the arrow B.
  • the cooler air is passed to a cooling turbine 32 which allows the compressed air to expand. As the compressed air expands through the cooling turbine 32 , work and heat are extracted therefrom to liquefy the air.
  • the liquid air is passed to the storage means 14 , which may be in the form of suitable storage tanks for storing liquid air at about 80K.
  • the air is supplied from the storage means 14 to the delivery assembly 16 .
  • the delivery assembly comprises a pump 38 .
  • the air passes from the pump 38 through the heat exchanger 20 , in this embodiment, the air is in a liquid or at least a partially liquid state when it passes through the pump 38 .
  • the air is heated in the heat exchanger 20 by extracting heat from the surroundings, for example, the sea or the atmosphere.
  • the air is then passed through a recuperating heat exchanger 40 whereby heat is exchanged with exhaust gasses from the turbine assembly 18 to further heat the air.
  • the air is converted substantially wholly to a gas.
  • the turbine assembly 18 comprises a main turbine 42 , and a combustor 44 .
  • the gas from the recuperating heat exchanger 40 is passed into the combustor 44 where it is combusted and the gaseous combustion products expand through the main turbine 42 causing it to rotate.
  • the main turbine 42 is drivingly connected by the shaft 46 to the alternator 22 to drive the alternator 22 and generate the electrical power 23 . Gases from the main turbine 42 are exhausted via the recuperating heat exchanger 40 to heat the incoming air.
  • FIG. 2 shows a further embodiment, which comprises a modification to the embodiment shown in FIG. 1 .
  • the embodiment shown in FIG. 2 comprises many of the same features as shown in FIG. 1 , and these have been designated within the same reference numerals.
  • the storage means 14 is replaced by storage means 114 , which is constructed to store the air in only partially liquefied form or wholly in the form of a gas.
  • the pump 38 is replaced by a main compressor 138 which is drivingly connected by a shaft 139 to the main turbine 42 .
  • Air from the storage means 14 may be only partially liquefied or wholly in the form of a gas.
  • the air passes to the main compressor 138 to be compressed. For example, if the inlet temperature of the main compressor 138 , it is compressed. For example, if the inlet temperature of the main compressor 138 is 80K, and the compression ratio of the main compressor 138 is 15:1, the compressed air leaves the main compressor 138 at about 173K.
  • the compressed air passes from the compressor 138 through the heat exchanger 20 to extract heat from the surroundings, and then through the recuperating heat exchanger 40 to extract heat from the exhaust gases of the main turbine 42 .
  • the main turbine 42 also drives the alternator 22 via the shaft 46 .
  • FIG. 3 shows a modification, which comprises many of the features shown in FIG. 1 , and these have been designated with the same reference numerals.
  • FIG. 3 differs from the embodiment shown in FIG. 1 downstream of the storage means 14 .
  • liquid air from the storage means 14 is mixed with ambient air from the atmosphere in a mixing assembly 50 .
  • the mixing assembly 50 comprises a conduit 52 having an inlet 56 for atmospheric air to enter the conduit 52 .
  • a spray means 54 is provided to spray liquid air from the storage means 14 into the conduit 52 .
  • the liquid air at 80K is mixed with incoming atmospheric air, which is likely to be at approximately 288K.
  • the temperature of the air entering the main compressor 138 is cooled below the temperature of atmospheric air.
  • the main compressor 138 is connected to the main turbine 42 by the shaft 139 and air exiting from the main compressor 138 is combusted through the combustor 44 to drive the turbine 42 which in turn drives the main compressor 138 .
  • the turbine 42 is also connected by the shaft 46 to the alternator 22 to generate electricity 23 .
  • the air as stored in the storage means 14 could be cool gaseous air, rather than liquid air.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

A work extraction arrangement (10) comprises a cooling assembly (12) for cooling a gas to provide a working fluid capable of doing work. The arrangement (10) further includes storage means (14) for storing the working fluid and a turbine assembly (18) for extracting work from the working fluid. A fluid delivery assembly (16) is also provided to deliver the working fluid to the turbine assembly (18).

Description

  • This invention relates to work extraction arrangements. More particularly, but not exclusively, the invention relates to electricity generating apparatus using liquefied air.
  • The generation of electricity by burning fuel in a gas turbine engine requires the fuel to be piped to the engine. The fuel occurs in offshore fields and sometimes these fields are located at distances which make the extraction of the fuel unattractive. These fields are known as “stranded fields”. A recent approach is to locate the gas turbine engine at the stranded fields to burn the fuel and generate electricity. Electric cables are provided to carry the electricity to the grid/users. Additionally wind turbines have been located at the stranded fields and use the same electric cable. The turbines are easily switched on/off to match the load demand on the grid. However, the wind turbines may only provide power when the wind blows.
  • According to one aspect of this invention, there is provided a work extraction arrangement comprising a cooling assembly for cooling a gas to provide a working fluid capable of doing work, storage means for storing the working fluid, a turbine assembly for extracting work from the working fluid, and a fluid delivery assembly for delivering the working fluid to the turbine assembly.
  • According to another aspect of this invention there is provided a method of extracting work from a gas, comprising cooling the gas to provide a working fluid capable of doing work, storing the working fluid, delivering the working fluid to a turbine assembly whereby work can be extracted from the working fluid by the turbine assembly.
  • Preferably, the fluid delivery assembly comprises a pumping means. In one embodiment, the fluid delivery assembly may comprise a pump, which may be suitable for pumping a liquefied gas. The pump may be suitable for pumping a mixture of gas and liquefied gas. Alternatively, the pump may be suitable for pumping a wholly liquefied gas. In another embodiment, the fluid delivery assembly comprises a main compressor, whereby when the fluid delivered to the main compressor is in the form of a gas, the main compressor can compress the gas. The fluid delivered to the main compressor may be in the form of a mixture of a gas and liquefied gas. The main compressor may be a compressor of a gas turbine engine.
  • The turbine assembly may comprise at least one main turbine for extracting work from the working fluid, and may include a combustor for combusting the working fluid when the working fluid comprises a combustible gas. Preferably, the combustor is arranged upstream of the turbine assembly.
  • Preferably, the main turbine is operable by the combustion products of the working fluid.
  • The work extraction arrangement may comprise an electricity generator, which may be driven by the turbine assembly. In one embodiment, the turbine assembly may be a turbine assembly of a gas turbine engine.
  • The cooling assembly may comprise a cooling cycle compressor for compressing the gas for cooling purposes. The cooling assembly may comprise a heat extractor for extracting heat from the compressed gas. The heat extractor may comprise a heat exchanger to exchange heat with the surroundings, e.g. the sea or the atmosphere.
  • The cooling assembly may comprise a cooling cycle turbine to extract preliminary work from the compressed gas thereby cooling the gas to provide said working fluid.
  • The working assembly may be driven by a wind turbine or other renewable energy source. Alternatively, the cooling assembly may be driven by electricity at night time, which is less expensive than electricity produced during daylight hours.
  • The working fluid provided by the cooling assembly may be in liquid or gaseous form.
  • In one embodiment, the work extraction arrangement may comprise a heater for heating the working fluid downstream of the fluid delivery assembly. The working fluid heater may comprise a heat exchanger. Preferably, the heat exchanger is arranged to exchange heat with the surroundings, for example, the sea or the atmosphere.
  • The work extraction arrangement may further comprise a recuperating heat exchanger, whereby exhaust gases from the main turbine can exchange heat with gas to be delivered to the combustor.
  • Embodiments of the invention will now be described by way of example only, with reference to the accompanying drawings in which:
  • FIG. 1 shows a schematic diagram of a first embodiment of a work extraction arrangement
  • FIG. 2 is a schematic diagram of a second embodiment of a work extraction arrangement; and
  • FIG. 3 is a schematic diagram of a third embodiment of a work extraction arrangement.
  • Referring to FIG. 1, there is shown a work extraction arrangement 10 comprising a cooling assembly 12 for cooling and liquefying a gas, for example, air, to produce a working fluid, such as liquefied air. The arrangement also includes storage means 14 for storing the liquefied air, a fluid delivery assembly 16 for delivering the liquefied air to a turbine assembly 18 to extract work from the working fluid.
  • A heat exchanger 20 is provided downstream of the fluid delivery assembly 16 to extract heat from the atmosphere and heat the liquefied air, as represented by the arrow A. In the heat exchanger 20, the liquefied air is heated to provide gaseous air.
  • Downstream of the turbine assembly 18 there is provided an alternator 22 for generating electrical power 23. The alternator 22 is driven by the turbine assembly 18, as explained below.
  • The cooling assembly 12 comprises a wind turbine 24 which drives a compressor 26 having an air inlet 28. In another embodiment, the compressor 26 could be driven by an electric motor, which is powered by cheaper electricity during the night. Air compressed by the compressor 28 passes through a heat exchanger 30 where heat is extracted and transferred to the surroundings, for example the sea or the atmosphere, as represented by the arrow B. The cooler air is passed to a cooling turbine 32 which allows the compressed air to expand. As the compressed air expands through the cooling turbine 32, work and heat are extracted therefrom to liquefy the air. The liquid air is passed to the storage means 14, which may be in the form of suitable storage tanks for storing liquid air at about 80K.
  • When it is desired to generate electricity, for example, during peak hours, the air is supplied from the storage means 14 to the delivery assembly 16. In the embodiment shown in FIG. 1, the delivery assembly comprises a pump 38. The air passes from the pump 38 through the heat exchanger 20, in this embodiment, the air is in a liquid or at least a partially liquid state when it passes through the pump 38.
  • The air is heated in the heat exchanger 20 by extracting heat from the surroundings, for example, the sea or the atmosphere. The air is then passed through a recuperating heat exchanger 40 whereby heat is exchanged with exhaust gasses from the turbine assembly 18 to further heat the air. During these heating stages, the air is converted substantially wholly to a gas.
  • The turbine assembly 18 comprises a main turbine 42, and a combustor 44. The gas from the recuperating heat exchanger 40 is passed into the combustor 44 where it is combusted and the gaseous combustion products expand through the main turbine 42 causing it to rotate. The main turbine 42 is drivingly connected by the shaft 46 to the alternator 22 to drive the alternator 22 and generate the electrical power 23. Gases from the main turbine 42 are exhausted via the recuperating heat exchanger 40 to heat the incoming air.
  • FIG. 2 shows a further embodiment, which comprises a modification to the embodiment shown in FIG. 1. The embodiment shown in FIG. 2 comprises many of the same features as shown in FIG. 1, and these have been designated within the same reference numerals. In FIG. 2, the storage means 14 is replaced by storage means 114, which is constructed to store the air in only partially liquefied form or wholly in the form of a gas. Also, the pump 38 is replaced by a main compressor 138 which is drivingly connected by a shaft 139 to the main turbine 42.
  • Air from the storage means 14 may be only partially liquefied or wholly in the form of a gas. The air passes to the main compressor 138 to be compressed. For example, if the inlet temperature of the main compressor 138, it is compressed. For example, if the inlet temperature of the main compressor 138 is 80K, and the compression ratio of the main compressor 138 is 15:1, the compressed air leaves the main compressor 138 at about 173K.
  • The compressed air passes from the compressor 138 through the heat exchanger 20 to extract heat from the surroundings, and then through the recuperating heat exchanger 40 to extract heat from the exhaust gases of the main turbine 42.
  • The air then passes through the combustor 44 to be combusted and expands through the main turbine 42 to drive the main turbine 42 which, in turn, drives the main compressor 138 via the shaft 139. The main turbine 42 also drives the alternator 22 via the shaft 46.
  • FIG. 3 shows a modification, which comprises many of the features shown in FIG. 1, and these have been designated with the same reference numerals.
  • The embodiment shown in FIG. 3 differs from the embodiment shown in FIG. 1 downstream of the storage means 14.
  • In FIG. 3, liquid air from the storage means 14 is mixed with ambient air from the atmosphere in a mixing assembly 50. The mixing assembly 50 comprises a conduit 52 having an inlet 56 for atmospheric air to enter the conduit 52. A spray means 54 is provided to spray liquid air from the storage means 14 into the conduit 52. As a result, the liquid air at 80K is mixed with incoming atmospheric air, which is likely to be at approximately 288K. The temperature of the air entering the main compressor 138 is cooled below the temperature of atmospheric air.
  • The main compressor 138 is connected to the main turbine 42 by the shaft 139 and air exiting from the main compressor 138 is combusted through the combustor 44 to drive the turbine 42 which in turn drives the main compressor 138. In addition, the turbine 42 is also connected by the shaft 46 to the alternator 22 to generate electricity 23.
  • There is thus described an advantageous apparatus for providing air to drive a turbine for use in the production of electricity at a generator 22.
  • Various modifications can be made without departing from the scope of the invention, for example, the air as stored in the storage means 14 could be cool gaseous air, rather than liquid air.
  • Whilst endeavouring in the foregoing specification to draw attention to those features of the invention believed to be of particular importance it should be understood that the Applicant claims protection in respect of any patentable feature or combination of features hereinbefore referred to and/or shown in the drawings whether or not particular emphasis has been placed thereon.

Claims (26)

1. A work extraction arrangement comprising a cooling assembly for cooling a gas to provide a working fluid capable of doing work, storage means for storing the working fluid, a turbine assembly for extracting work from the working fluid, and a fluid delivery assembly for delivering the working fluid to the turbine assembly.
2. A work extraction arrangement according to claim 1 wherein the fluid delivery assembly comprises a pumping means.
3. A work extraction arrangement according to claim 2 wherein the fluid delivery assembly comprises a main compressor, whereby when the fluid delivered to the main compressor is in the form of a gas, the main compressor can compress the gas
4. A work extraction arrangement according to claim 3 wherein the main compressor comprises a compressor of a gas turbine engine.
5. A work extraction arrangement according to claim 2 wherein the pumping means comprises a pump, suitable for pumping at least partially liquefied gas.
6. A work extraction arrangement according to claim 1 wherein the turbine assembly comprises at least one main turbine for extracting work from the working fluid, and a combustor for combusting the working fluid when the working fluid comprises a combustible gas.
7. A work extraction arrangement according to claim 6 wherein the combustor is arranged upstream of the main turbine assembly and the main turbine assembly is operable by the combustion products of the working fluid.
8. A work extraction arrangement according to claim 1 wherein the work extraction arrangement comprises an electricity generator, driven by the turbine assembly.
9. A work extraction arrangement according to claim 1 wherein the turbine assembly comprises a turbine assembly of a gas turbine engine.
10. A work extraction arrangement according to claim 1 wherein the cooling assembly comprises a cooling cycle compressor for compressing the gas for cooling purposes.
11. A work extraction arrangement according to claim 10 wherein the cooling assembly comprises a heat extractor for extracting heat from the compressed gas.
12. A work extraction arrangement according to claim 10 wherein the heat extractor comprises a heat exchanger to exchange heat with the surroundings.
13. A work extraction arrangement according to claim 1 wherein the cooling assembly comprises a cooling cycle turbine to extract work from the compressed gas thereby cooling the gas to provide said working fluid.
14. A work extraction arrangement according to claim 1 wherein the working fluid provided by the cooling assembly is in liquid or gaseous form.
15. A work extraction arrangement according to claim 1 wherein the work extraction arrangement comprises a heater for heating the working fluid downstream of the fluid delivery assembly.
16. A work extraction arrangement according to claim 15 wherein the working fluid heater comprises a heat exchanger, and is arranged to exchange heat with the surroundings.
17. A work extraction arrangement according to claim 1 wherein the work extraction arrangement further comprises a recuperating heat exchanger, whereby exhaust gases from the main turbine can exchange heat with gas to be delivered to the combustor.
18. A method of extracting work from a gas, comprising cooling the gas to provide a working fluid capable of doing work, storing the working fluid, delivering the working fluid to a turbine assembly, whereby work can be extracted from the working fluid by the turbine assembly.
19. A method according to claim 18 wherein the working fluid is compressed during its delivery to the turbine assembly.
20. A method according to claim 18 wherein the working fluid is pumped during its delivery to the turbine assembly.
21. A method according to claim 18 wherein the turbine assembly comprises a main turbine and a combustor and the working fluid is combusted upstream of the main turbine and the main turbine is operable by the combustion products of the working fluid.
22. A method according to claims 18 wherein the extraction of work from the working fluid involves driving an electricity generator to generate electricity.
23. A method according to claim 18 wherein the step of cooling the gas comprises compressing the gas for cooling purposes, extracting heat from the compressed gas and thereafter extracting preliminary work from the compressed gas thereby cooling the gas to provide said working fluid.
24. A method according to claim 23 wherein the step of extracting preliminary work from the compressed gas comprises driving a cooling cycle turbine with said compressed gas.
25. A method according to any of claim 1 wherein the working fluid is heated during its delivery to the turbine assembly.
26. A method according to claim 25 wherein the step of heating the working fluid comprises exchanging heat with the surroundings.
US11/979,586 2003-12-13 2007-11-06 Work extraction arrangement Abandoned US20080060340A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/979,586 US20080060340A1 (en) 2003-12-13 2007-11-06 Work extraction arrangement

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0328950A GB2409022B (en) 2003-12-13 2003-12-13 Work extraction arrangement
GB0328950.1 2003-12-13
US11/008,659 US7305832B2 (en) 2003-12-13 2004-12-10 Work extraction arrangement
US11/979,586 US20080060340A1 (en) 2003-12-13 2007-11-06 Work extraction arrangement

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US11/008,659 Division US7305832B2 (en) 2003-12-13 2004-12-10 Work extraction arrangement

Publications (1)

Publication Number Publication Date
US20080060340A1 true US20080060340A1 (en) 2008-03-13

Family

ID=30130195

Family Applications (2)

Application Number Title Priority Date Filing Date
US11/008,659 Expired - Fee Related US7305832B2 (en) 2003-12-13 2004-12-10 Work extraction arrangement
US11/979,586 Abandoned US20080060340A1 (en) 2003-12-13 2007-11-06 Work extraction arrangement

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US11/008,659 Expired - Fee Related US7305832B2 (en) 2003-12-13 2004-12-10 Work extraction arrangement

Country Status (2)

Country Link
US (2) US7305832B2 (en)
GB (1) GB2409022B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014019698A3 (en) * 2012-08-02 2014-06-05 Linde Aktiengesellschaft Method and device for generating electrical energy
US20140165584A1 (en) * 2012-12-14 2014-06-19 Electro-Motive Diesel, Inc. Cryogenic pump system for converting fuel

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2409022B (en) * 2003-12-13 2006-01-25 Rolls Royce Plc Work extraction arrangement
US20050135934A1 (en) * 2003-12-22 2005-06-23 Mechanology, Llc Use of intersecting vane machines in combination with wind turbines
US20070095069A1 (en) * 2005-11-03 2007-05-03 General Electric Company Power generation systems and method of operating same
AU2007217133B2 (en) * 2006-02-27 2013-05-30 Highview Enterprises Limited A method of storing energy and a cryogenic energy storage system
WO2007136731A2 (en) * 2006-05-19 2007-11-29 General Compression, Inc. Wind turbine system
WO2007136765A2 (en) * 2006-05-19 2007-11-29 General Compression, Inc. Wind turbine system
US7389644B1 (en) * 2007-01-19 2008-06-24 Michael Nakhamkin Power augmentation of combustion turbines by injection of cold air upstream of compressor
EP2162606A4 (en) * 2007-05-29 2017-12-20 AB Engine Incorporated High efficiency internal combustion engine
US8247915B2 (en) * 2010-03-24 2012-08-21 Lightsail Energy, Inc. Energy storage system utilizing compressed gas
WO2011008325A2 (en) * 2009-06-29 2011-01-20 Lightsail Energy Inc. Storage of compressed air in wind turbine support structure
US8196395B2 (en) * 2009-06-29 2012-06-12 Lightsail Energy, Inc. Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange
US8146354B2 (en) * 2009-06-29 2012-04-03 Lightsail Energy, Inc. Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange
US20110110604A1 (en) * 2009-11-10 2011-05-12 Prakash Reddy Cropping scanned pages to remove artifacts
GB2484114A (en) * 2010-09-30 2012-04-04 Astrium Ltd System for the Recovery, Storage and Utilisation of Atmospheric Gas for Use as a Vehicle Propellant
GB201100569D0 (en) * 2011-01-13 2011-03-02 Highview Entpr Ltd Electricity generation device and method
DE102013203044A1 (en) * 2013-02-25 2014-08-28 Siemens Aktiengesellschaft Method for regulating the power of a gas turbine unit
CN103291455B (en) * 2013-05-08 2016-01-27 中国能源建设集团广东省电力设计研究院有限公司 The compressed-air energy storage method of cogeneration and energy-storage system
EP2808502A1 (en) * 2013-05-31 2014-12-03 Siemens Aktiengesellschaft Installation for the storage of energy in a liquefied process gas
CN105317554B (en) * 2015-01-04 2017-11-28 中国大唐集团新能源股份有限公司 Compressed-air energy storage electricity-generating method
WO2016195968A1 (en) * 2015-06-01 2016-12-08 Conlon William M Part load operation of liquid air power and storage system
WO2016195999A1 (en) 2015-06-03 2016-12-08 Conlon William M Liquid air power and storage with carbon capture
WO2016204893A1 (en) * 2015-06-16 2016-12-22 Conlon William M Cryogenic liquid energy storage
WO2017069922A1 (en) 2015-10-21 2017-04-27 Conlon William M High pressure liquid air power and storage
GB201601878D0 (en) 2016-02-02 2016-03-16 Highview Entpr Ltd Improvements in power recovery

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4329842A (en) * 1980-07-02 1982-05-18 Hans D. Linhardt Power conversion system utilizing reversible energy of liquefied natural gas
US20010004830A1 (en) * 1996-12-24 2001-06-28 Hitachi, Ltd. Cold heat-reused air liquefaction/vaporization and storage gas turbine electric power system
US7305832B2 (en) * 2003-12-13 2007-12-11 Rolls-Royce Plc Work extraction arrangement

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4079591A (en) * 1976-08-02 1978-03-21 Derby Ronald C Solar power plant
US4437312A (en) * 1981-03-06 1984-03-20 Air Products And Chemicals, Inc. Recovery of power from vaporization of liquefied natural gas
US5778675A (en) * 1997-06-20 1998-07-14 Electric Power Research Institute, Inc. Method of power generation and load management with hybrid mode of operation of a combustion turbine derivative power plant
JPH11343865A (en) * 1998-06-02 1999-12-14 Mitsubishi Heavy Ind Ltd Cryogenic turbine power generation system
JP2001095934A (en) * 1999-10-01 2001-04-10 Mitsubishi Heavy Ind Ltd Air liquefying type fire extinguishing device
US6260349B1 (en) * 2000-03-17 2001-07-17 Kenneth F. Griffiths Multi-stage turbo-machines with specific blade dimension ratios

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4329842A (en) * 1980-07-02 1982-05-18 Hans D. Linhardt Power conversion system utilizing reversible energy of liquefied natural gas
US20010004830A1 (en) * 1996-12-24 2001-06-28 Hitachi, Ltd. Cold heat-reused air liquefaction/vaporization and storage gas turbine electric power system
US7305832B2 (en) * 2003-12-13 2007-12-11 Rolls-Royce Plc Work extraction arrangement

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014019698A3 (en) * 2012-08-02 2014-06-05 Linde Aktiengesellschaft Method and device for generating electrical energy
US9810103B2 (en) 2012-08-02 2017-11-07 Linde Aktiengesellschaft Method and device for generating electrical energy
US20140165584A1 (en) * 2012-12-14 2014-06-19 Electro-Motive Diesel, Inc. Cryogenic pump system for converting fuel
US9097208B2 (en) * 2012-12-14 2015-08-04 Electro-Motive Diesel, Inc. Cryogenic pump system for converting fuel

Also Published As

Publication number Publication date
US7305832B2 (en) 2007-12-11
GB2409022B (en) 2006-01-25
GB0328950D0 (en) 2004-01-14
GB2409022A (en) 2005-06-15
US20050126176A1 (en) 2005-06-16

Similar Documents

Publication Publication Date Title
US20080060340A1 (en) Work extraction arrangement
US11047307B2 (en) Hybrid expander cycle with intercooling and turbo-generator
US11041439B2 (en) Hybrid expander cycle with turbo-generator and cooled power electronics
EP3943732A1 (en) Engine using heated and turbo-expanded ammonia fuel
CN102953830B (en) Power plant start-up method
US6892542B2 (en) Gas compression system and method for microturbine application
US10683803B2 (en) Compressed-air energy-storage system
WO2008024833B1 (en) A combined cycle system for gas turbines and reciprocating engines and a method for the use of air as working fluid in combined cycle power plants
US20120096869A1 (en) Utilizing heat discarded from a gas turbine engine
CA2933289C (en) Compressed-air-energy-storage (caes) system and method
US11255262B2 (en) Hybrid compressed air energy storage system
JP2014109279A (en) Gas turbine engine with integrated bottoming cycle system
US10480418B2 (en) Gas turbine energy supplementing systems and heating systems, and methods of making and using the same
JP2013513072A (en) Modification of a simple cycle gas turbine to utilize a compressed air energy storage room with an expander for additional power generation
CN101915128A (en) The system that comprises multiple spool generators
KR20150038412A (en) Dual-end drive gas turbine
KR20190134498A (en) Device for the air supply of a fuel cell, preferentially of a fuel cell operated with hydrogen
US11022040B2 (en) Backup system for supplying compressed air to a gas turbine component
JP2015536396A (en) Heat engine
RU2463463C2 (en) Combined power system
WO2021257333A1 (en) Air energy storage with internal combustion engines
RU2145386C1 (en) Method for operation of gas-turbine plant
JPS566023A (en) Method of generating electricity by gas turbine for use at peak load
WO2001021948A1 (en) Universal thermochemical energy converter
RU2290521C2 (en) Gas-turbine engine

Legal Events

Date Code Title Description
STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION