US20040088979A1 - Power generating system - Google Patents

Power generating system Download PDF

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Publication number
US20040088979A1
US20040088979A1 US10/250,806 US25080603A US2004088979A1 US 20040088979 A1 US20040088979 A1 US 20040088979A1 US 25080603 A US25080603 A US 25080603A US 2004088979 A1 US2004088979 A1 US 2004088979A1
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US
United States
Prior art keywords
power generating
generating system
fluid
heat exchanger
combustion
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
US10/250,806
Inventor
Robert Talbott
Benjamin Talbott
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.)
TALBOTT'S HEATING Ltd
Original Assignee
TALBOTT'S HEATING Ltd
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Filing date
Publication date
Application filed by TALBOTT'S HEATING Ltd filed Critical TALBOTT'S HEATING Ltd
Assigned to TALBOTT'S HEATING LIMITED reassignment TALBOTT'S HEATING LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TALBOTT, BENJAMIN CHURCHILL, TALBOTT, ROBERT EDWARD
Publication of US20040088979A1 publication Critical patent/US20040088979A1/en
Abandoned legal-status Critical Current

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    • 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
    • F02C1/00—Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid
    • F02C1/04—Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid the working fluid being heated indirectly
    • F02C1/05—Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid the working fluid being heated indirectly characterised by the type or source of heat, e.g. using nuclear or solar energy
    • 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
    • F02C6/18—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants
    • 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
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/10—Biofuels, e.g. bio-diesel

Definitions

  • the present invention relates to power generating systems.
  • micro turbines which are small, recuperated gas turbines have been developed that offer many benefits over conventional small scale power generation technologies. Their principal benefits are reduced costs, increased reliability and availability and also ultra-low emissions.
  • micro turbines In0004] However a significant disadvantage of micro turbines is that they only be operated from gaseous and liquid fuels.
  • a power generating system comprising a combustion chamber for combustion of solid fuel material, a heat exchanger associated with the combustion chamber through we fluid passes to be heated by combustion of the solid fuel material, and a turbine which is driven by the heated fluid to generate power, wherein the heat exchanger includes selectively removable baffles.
  • the turbine is preferably a gas turbine, and may comprise a micro turbine.
  • the heat exchanger may comprise a fluid inlet through which preferably partially pre-heated fluid is introduced into the heat exchanger.
  • Fluid may be introduced into the heat exchanger under compression, and may have been passed through a compressor which may have preheated the fluid for introduction.
  • Fluid may be introduced at a temperature in the range 150-250° C., and preferably 200° C.
  • the fluid is preferably a gas, and may be atmospheric air.
  • the heat exchanger is located in an upper part of the combustion chamber and preferably at or near the top thereof.
  • the heat exchanger may comprise a conduit through which fluid flows to be heated, the conduit dying a tortuous path to facilitate the heating of air therein.
  • the heat exchanger preferably keeps the fluid separate from combustion gases generated during combustion, whilst allowing the gases to pass around the outside of the conduit whereby to heat the fluid passing through the conduit.
  • the baffles may be provided in the heat exchanger to divert combustion gases over the conduit to facilitate beat transfer.
  • the heat exchanger further comprises insulation materials to further improve heat transfer.
  • the insulation material may line the inside of a housing of the exchanger and may comprise ceramic material.
  • the heat exchanger may comprise materials able to resist high temperatures and retain strength and geometry at temperatures up to in the order of 1000° C. whilst providing good conduction of heat, such as exotic stainless steel or other suitable, conductive yet durable material.
  • the heat exchanger is preferably readily dismantled, at least in part, to facilitate cleaning thereof, in particular cleaning of the outside of the conduit for example to remove combustion by-product such as soot and other carbonaceous deposits.
  • the beat exchanger is arranged to allow fluid passing therethrough to be heated to approximate 800-900° C., depending upon the material being combusted.
  • the combustion chamber is arranged to accommodate combustion of a range of solid fuel materials, such as combustible waste, fossil fuels and wood. It is preferable to use sustainable or renewable fuels.
  • heated fluid exits the heat exchanger to be introduced to the turbine to drive the turbine to generate electrical power.
  • a conduit may connect the heat exchanger to the turbine which may be remote from the heat exchanger.
  • Means may be provided to process generated power, such as an inverter/rectifier means.
  • the system may further comprise means to utilise waste gases from the combustion chamber, particularly to use the residual heat in the gases to heat for example an appliance, such as a radiator, before the gases are exhausted from the system.
  • the invention further provides a method of generating power, the method comprising combusting solid fuel material in a combustion chamber to heat fluid passing through a heat exchanger associated with the combustion chamber and including selectively removable baffles, and using said heated fluid to drive a turbine to generate power.
  • the method may comprise the use of a system substantially as defined in any of the preceding twelve paragraphs.
  • FIG. 1 is a schematic representation of a power generating system according to the present invention
  • FIG. 2 is a plan view of a heat exchanger according to the present
  • a heat exchanger may be varied according to desired applications.
  • a plurality of heat exchangers may be used.
  • the system may use any suitable fluid to be heated, such as a gas from a gas source.
  • the system may comprise any number of the aforesaid components and features in any combination.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Air Supply (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Control Of Eletrric Generators (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

A power generating system comprises a combustion arrangement in which combustion of fuel, and in particular sustainable or renewable fluid, is used to indirectly heat fluid, such as air to drive a turbine to generate power. The arrangement includes a combustion chamber at or near the top of which is a heat exchanger.

Description

  • The present invention relates to power generating systems. [0001]
  • The generation of electrical power and particularly relatively small scale power generation employing conventional techniques has several disadvantages. [0002]
  • Recently, micro turbines, which are small, recuperated gas turbines have been developed that offer many benefits over conventional small scale power generation technologies. Their principal benefits are reduced costs, increased reliability and availability and also ultra-low emissions. [0003]
  • However a significant disadvantage of micro turbines is that they only be operated from gaseous and liquid fuels. [0004]
  • According to the present invention there is provided a power generating system comprising a combustion chamber for combustion of solid fuel material, a heat exchanger associated with the combustion chamber through we fluid passes to be heated by combustion of the solid fuel material, and a turbine which is driven by the heated fluid to generate power, wherein the heat exchanger includes selectively removable baffles. [0005]
  • The turbine is preferably a gas turbine, and may comprise a micro turbine. [0006]
  • The heat exchanger may comprise a fluid inlet through which preferably partially pre-heated fluid is introduced into the heat exchanger. Fluid may be introduced into the heat exchanger under compression, and may have been passed through a compressor which may have preheated the fluid for introduction. Fluid may be introduced at a temperature in the range 150-250° C., and preferably 200° C. The fluid is preferably a gas, and may be atmospheric air. [0007]
  • Preferably the heat exchanger is located in an upper part of the combustion chamber and preferably at or near the top thereof. The heat exchanger may comprise a conduit through which fluid flows to be heated, the conduit dying a tortuous path to facilitate the heating of air therein. The heat exchanger preferably keeps the fluid separate from combustion gases generated during combustion, whilst allowing the gases to pass around the outside of the conduit whereby to heat the fluid passing through the conduit. [0008]
  • The baffles may be provided in the heat exchanger to divert combustion gases over the conduit to facilitate beat transfer. Preferably the heat exchanger further comprises insulation materials to further improve heat transfer. The insulation material may line the inside of a housing of the exchanger and may comprise ceramic material. [0009]
  • The heat exchanger may comprise materials able to resist high temperatures and retain strength and geometry at temperatures up to in the order of 1000° C. whilst providing good conduction of heat, such as exotic stainless steel or other suitable, conductive yet durable material. The heat exchanger is preferably readily dismantled, at least in part, to facilitate cleaning thereof, in particular cleaning of the outside of the conduit for example to remove combustion by-product such as soot and other carbonaceous deposits. [0010]
  • Preferably the beat exchanger is arranged to allow fluid passing therethrough to be heated to approximate 800-900° C., depending upon the material being combusted. [0011]
  • Preferably the combustion chamber is arranged to accommodate combustion of a range of solid fuel materials, such as combustible waste, fossil fuels and wood. It is preferable to use sustainable or renewable fuels. [0012]
  • Preferably heated fluid exits the heat exchanger to be introduced to the turbine to drive the turbine to generate electrical power. A conduit may connect the heat exchanger to the turbine which may be remote from the heat exchanger. Means may be provided to process generated power, such as an inverter/rectifier means. [0013]
  • Preferably means is provided to feed heated fluid which has driven the turbine back into the combustion chamber where any residual heat in the fluid will facilitate and enhance the efficiency of combustion. [0014]
  • The system may further comprise means to utilise waste gases from the combustion chamber, particularly to use the residual heat in the gases to heat for example an appliance, such as a radiator, before the gases are exhausted from the system. [0015]
  • The invention further provides a method of generating power, the method comprising combusting solid fuel material in a combustion chamber to heat fluid passing through a heat exchanger associated with the combustion chamber and including selectively removable baffles, and using said heated fluid to drive a turbine to generate power. [0016]
  • The method may comprise the use of a system substantially as defined in any of the preceding twelve paragraphs.[0017]
  • A preferred embodiment of the present invention will now be described by way of example only, with reference to the accompanying drawings in which: [0018]
  • FIG. 1 is a schematic representation of a power generating system according to the present invention; [0019]
  • FIG. 2 is a plan view of a heat exchanger according to the present [0020]
  • Various modifications may be made without departing from the spirit or scope of the present invention For example, the arrangement and structure of a heat exchanger may be varied according to desired applications. Moreover, a plurality of heat exchangers may be used. The system may use any suitable fluid to be heated, such as a gas from a gas source. [0021]
  • The system may comprise any number of the aforesaid components and features in any combination. [0022]

Claims (35)

1. A power generating system comprising a combustion chamber for combustion of solid fuel material, a heat exchanger associated with the combustion chamber through which fluid passes to be heated by combustion of the solid fuel material, and a turbine which is driven by the heated fluid to generate power, wherein the heat exchanger includes selectively removable baffles.
2. A power generating system according to claim 1, in which the turbine is a gas turbine.
3. A power generating system according to claim 1 or claim 2, in which the turbine comprises a micro turbine.
4. A power generating system according to any preceding claim, in which the heat exchanger comprises a fluid inlet through which fluid is introduced into the heat exchanger.
5. A power generating system according to claim 4, in which fluid introduced is partially pre-heated.
6. A power generating system according to claim 4 or claim 5, in which fluid introduced into the heat exchanger is under compression.
7. A power generating system according to claim 5 or claim 6, in which the fluid has been passed through a compressor which has pre-heated the fluid.
8. A power generating system according to any of claim 4 to 7, in which fluid is introduced at a temperature in the range 150-250° C.
9. A power generating system according to claim 8, in which the fluid is introduced at a temperature of approximately 200° C.
10. A power generating system according to preceding claim, in which the fluid is a gas.
11. A power generating system according to claim 10, in which the fluid is atmospheric air.
12. A power generating stem according to any preceding claim, in which the heat exchanger is located in an upper part of the combustion chamber.
13. A power generating system according to any preceding claim, in which the heat exchanger is located at or near the top of the combustion chamber.
14. A power generating system according to any preceding claim, in which the heat exchanger comprises a conduit through which fluid flows to be heated, the conduit defining a tortuous path to facilitate the heating of fluid therein.
15. A power generating system according to claim 14, in which the heat exchanger keeps the fluid separate from combustion gates generated during combustion, whilst allowing the gases to pass around the outside of the conduit whereby to heat the fluid passing through the conduit.
16. A power generating system according to claim 14 or claim 15, in which the baffles divert combustion gases over the conduit to facilitate heat transfer.
17. A power generating system according to any preceding claim, in which the heat exchanger comprises insulation material to further improve heat transfer.
18. A power generating system according to claim 17, in which the insulation material lines the inside of a housing of the exchanger.
19. A power generating system according to claim 17 or claim 18, in which the material comprises ceramics material.
20. A power generating system according to any preceding claim, in which the heat exchanger comprises materials able to resist high temperatures and retain strength and geometry at temperatures up to in the order of 1000° C. whilst providing good conduction of heat, such as exotic stainless steel or other suitable, conductive yet durable material.
21. A power generating system according to any preceding claim, in which the heat exchanger is readily dismantled, at least in part, to facilitate cleaning thereof, in particular cleaning of the outside of the conduit for example to remove combustion by-products such as soot and other carbonaceous deposits.
22. A power generating system according to any preceding claim, in which the heat exchanger is arranged to allow fluid passing therethrough to be heated to approximately 800-900° C., depending upon the material being combusted.
23. A power generating system according to any preceding claim, in which the combustion chamber is arranged to accommodate combustion of a range of solid fuel materials, such as combustile waste, fossil fuels and wood.
24. A power generating system according to claim 23, in which the chamber is arranged to accommodate combustion of sustainable and/or renewable fluid.
25. A power generating system according to any preceding claim, in which heated fluid exits the heat exchanger to be introduced to the turbine to drive the turbine to generate electrical power.
26. A power generating system according to any preceding claim, in which a conduit connects the heat exchanger to the turbine.
27. A power generating system according to any preceding claim, in which the turbine is remote from the heat exchanger.
28. A power generating system according to any preceding claim, in which means is provided to process generated power.
29. A power generating system according to claim 28, in which the means comprises an inverter/rectifier means.
30. A power generating system according to any preceding claim, in which means is provided to feed heated fluid which has driven the turbine back into the combustion chamber where any residual heat in the fluid will facilitate and enhance the efficiency of combustion.
31. A power generating system according to any preceding claim, in which the system further comprises means to utilise waste gases from the combustion chamber, particularly to use the residual heat in the gases to heat for example an appliance, such as a radiator, before the gases are exhausted from the system.
32. A method of generating power, the method comprising combusting solid fuel material in a combustion chamber to heat fluid passing through a heat exchanger associated with the combustion chamber and including selectively removable baffles, and using said heated fluid to drive a turbine to generate power.
33. A method according to claim 32, which comprises the use of a system as claimed in any of claims 1 to 31.
34. A power generating system substantially as hereinbefore described with reference to the accompanying drawings.
35. A method of generating power substantially as hereinbefore described with reference to the accompanying drawings.
US10/250,806 2001-01-10 2001-12-13 Power generating system Abandoned US20040088979A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB0100601.4A GB0100601D0 (en) 2001-01-10 2001-01-10 Power generating system
GB0100601.4 2001-01-10
PCT/GB2001/005500 WO2002055855A1 (en) 2001-01-10 2001-12-13 Power generating system

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US20040088979A1 true US20040088979A1 (en) 2004-05-13

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US (1) US20040088979A1 (en)
EP (1) EP1350016B1 (en)
AT (1) ATE281592T1 (en)
CA (1) CA2433991C (en)
DE (1) DE60106976T2 (en)
ES (1) ES2231390T3 (en)
GB (1) GB0100601D0 (en)
PT (1) PT1350016E (en)
WO (1) WO2002055855A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060225424A1 (en) * 2005-04-12 2006-10-12 Zilkha Biomass Energy Llc Integrated Biomass Energy System
WO2006111362A1 (en) * 2005-04-21 2006-10-26 Compower Ab Energy recovery system
US20080245052A1 (en) * 2006-09-29 2008-10-09 Boyce Phiroz M Integrated Biomass Energy System

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5205284A (en) * 1990-06-12 1993-04-27 Zoll Medical Corporation Method and apparatus for transcutaneous electrical cardiac pacing with background stimulation
GB0425369D0 (en) * 2004-11-18 2004-12-22 Talbotts Heating Ltd Power generating system
SE528293C2 (en) * 2005-01-28 2006-10-10 Compower Ab Heating device for generating heat and electricity
FR2916240B1 (en) * 2007-05-15 2013-03-22 Inst Francais Du Petrole SYSTEM FOR GENERATING ENERGY, ESPECIALLY ELECTRICAL, WITH A GAS TURBINE AND A ROTARY REGENERATIVE HEAT EXCHANGER.
SE535434C2 (en) 2010-12-15 2012-08-07 Redian Ab Indirectly heated gas turbine system

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4228659A (en) * 1978-05-22 1980-10-21 Purification Sciences Inc. Gas turbine system
US4377072A (en) * 1980-10-27 1983-03-22 Rockwell International Corporation Ceramic heat exchange module and apparatus and process utilizing same
US4380154A (en) * 1981-06-23 1983-04-19 Thermacore, Inc. Clean coal power system
US4642864A (en) * 1985-12-20 1987-02-17 Solar Turbines Incorporated Recuperator tube assembly
US4922709A (en) * 1987-11-26 1990-05-08 Turbo Consult B.V. Plant for the generation of mechanical energy, and a process for generating the energy
US5687570A (en) * 1994-02-28 1997-11-18 Ormat Industries Ltd. Externally fired combined cycle gas turbine system
US5775267A (en) * 1996-08-26 1998-07-07 Hou; Liang-Yu Instant hot water boiler structure
US6066898A (en) * 1998-08-14 2000-05-23 Alliedsignal Inc. Microturbine power generating system including variable-speed gas compressor

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1539508A (en) * 1976-10-04 1979-01-31 Kearsey A Power plant

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4228659A (en) * 1978-05-22 1980-10-21 Purification Sciences Inc. Gas turbine system
US4377072A (en) * 1980-10-27 1983-03-22 Rockwell International Corporation Ceramic heat exchange module and apparatus and process utilizing same
US4380154A (en) * 1981-06-23 1983-04-19 Thermacore, Inc. Clean coal power system
US4642864A (en) * 1985-12-20 1987-02-17 Solar Turbines Incorporated Recuperator tube assembly
US4922709A (en) * 1987-11-26 1990-05-08 Turbo Consult B.V. Plant for the generation of mechanical energy, and a process for generating the energy
US5687570A (en) * 1994-02-28 1997-11-18 Ormat Industries Ltd. Externally fired combined cycle gas turbine system
US5775267A (en) * 1996-08-26 1998-07-07 Hou; Liang-Yu Instant hot water boiler structure
US6066898A (en) * 1998-08-14 2000-05-23 Alliedsignal Inc. Microturbine power generating system including variable-speed gas compressor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060225424A1 (en) * 2005-04-12 2006-10-12 Zilkha Biomass Energy Llc Integrated Biomass Energy System
US8240123B2 (en) 2005-04-12 2012-08-14 Zilkha Biomass Power Llc Integrated biomass energy system
WO2006111362A1 (en) * 2005-04-21 2006-10-26 Compower Ab Energy recovery system
US20080315589A1 (en) * 2005-04-21 2008-12-25 Compower Ab Energy Recovery System
US20080245052A1 (en) * 2006-09-29 2008-10-09 Boyce Phiroz M Integrated Biomass Energy System

Also Published As

Publication number Publication date
ES2231390T3 (en) 2005-05-16
EP1350016A1 (en) 2003-10-08
GB0100601D0 (en) 2001-02-21
DE60106976D1 (en) 2004-12-09
ATE281592T1 (en) 2004-11-15
CA2433991A1 (en) 2002-07-18
CA2433991C (en) 2011-08-23
PT1350016E (en) 2005-03-31
EP1350016B1 (en) 2004-11-03
DE60106976T2 (en) 2005-12-01
WO2002055855A1 (en) 2002-07-18

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AS Assignment

Owner name: TALBOTT'S HEATING LIMITED, UNITED KINGDOM

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TALBOTT, ROBERT EDWARD;TALBOTT, BENJAMIN CHURCHILL;REEL/FRAME:014141/0409

Effective date: 20031110

STCB Information on status: application discontinuation

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