US3884193A - Vapor generating system and method - Google Patents

Vapor generating system and method Download PDF

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Publication number
US3884193A
US3884193A US453899A US45389974A US3884193A US 3884193 A US3884193 A US 3884193A US 453899 A US453899 A US 453899A US 45389974 A US45389974 A US 45389974A US 3884193 A US3884193 A US 3884193A
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United States
Prior art keywords
fluid
furnace
passing
tubes
heat exchange
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Expired - Lifetime
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US453899A
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English (en)
Inventor
Richard W Bryers
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Foster Wheeler Inc
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Foster Wheeler Inc
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Publication date
Application filed by Foster Wheeler Inc filed Critical Foster Wheeler Inc
Priority to US453899A priority Critical patent/US3884193A/en
Priority to CA220,996A priority patent/CA1012018A/en
Priority to JP3420875A priority patent/JPS531882B2/ja
Priority to GB12007/75A priority patent/GB1486712A/en
Priority to ES435909A priority patent/ES435909A1/es
Application granted granted Critical
Publication of US3884193A publication Critical patent/US3884193A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K3/00—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein
    • F01K3/18—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters
    • F01K3/24—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters with heating by separately-fired heaters
    • F01K3/245—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters with heating by separately-fired heaters delivering steam at different pressure levels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
    • F22B31/0007—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed
    • F22B31/0015—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed for boilers of the water tube type
    • F22B31/0023—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed for boilers of the water tube type with tubes in the bed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B33/00—Steam-generation plants, e.g. comprising steam boilers of different types in mutual association
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C10/00—Fluidised bed combustion apparatus

Definitions

  • ABSTRACT [22] 122/4Fl )2;2L2g0l3
  • a vapor generating System and method in which a 110/28 J heat exchange fluid is selectively exposed to a fluid- 1 1e 0 can: ized bed of relatively low grade fuel to heat the fluid after which it is transferred to a steam drum of a pri- [56] uNlTE g s giz lis giiENTs mary boiler for further treatment.
  • This invention relates to a vapor generating system and method and, more particularly, to such a system and method in which a relatively low grade fuel is burned in a secondary fluidized bed to heat a heat exchange medium which is then routed to a primary boiler for further processing.
  • Refuse boilers or boilers operating with a relatively low grade fuel such as waste materials including woodbark and the like, have previously been utilized in connection with modern power plants incorporating one or more conventional type boilers as a means of disposing waste and at the same time, generating energy for production of process steam or electricity.
  • the system of the present invention comprises a primary boiler including a furnace, tube means for containing a heat exchange fluid and for selectively exposing said fluid to the heat from said furnace, and collection means for collecting the heated fluid from said tube means; means for continuously combusting a fluidized bed of fuel of a lower grade than that used in said furnace, additional tube means for containing a heat exchange fluid and for exposing said fluid to the heat from said bed; and means for connecting said additional tube means to said collection means for transferring the heated fluid from said additional tube means to said collecting means.
  • the reference numeral refers in general to a primary boiler which consists of an enclosure 12 of a refractory or other insulating material having an opening 14 in its front wall.
  • the rear wall, the side walls, and a portion of the front wall of the enclosure 12 are lined with a plurality of vertically extending spaced parallel tubes, shown schematically by the reference numeral 16.
  • the tubes have longitudinal, external fins which are connected together to form an air tight structure, in a conventional manner.
  • the ends of the tubes 16 register with headers 18 in a manner so that a heat exchange fluid, such as water, can be circulated through the tubes in selected paths.
  • a plurality of burners extend through the walls of the enclosure 12 and the tubes 16, and are supplied with hogged fuel in a conventional manner to maintain the boiler 10 at a predetermined operating temperature.
  • Hogged fuel is well known in the art as a woodbark refuse type of fuel. As a result, the temperature of the water is gradually raised by the heat generated in the boiler 10 as the water passes through the tubes 16.
  • the boiler 10 is provided with a collection drum 20 for steam and water which is connected to the fluid circuit including the tubes 16 and the headers 18 by a line 25.
  • the drum 20 is also connected, via a plurality of tubes 22, to a water or mud drum 24 which, in turn, is connected by a line 26 to the lower headers 18.
  • a secondary, or refuse boiler shown generally by the reference numeral 30, is disposed adjacent the primary boiler 10 and is formed by an enclosure 32 of a refractory or other insulating material which is lined with a plurality of finned tubes 34 connected to headers 36 to establish a fluid circuit, similar to that of the boiler 10. Water is directed from a source 37, through a line 38 under the force of a pump 39 into a header 36 for air culation through the tubes 34 and the remaining headers.
  • a horizontal, perforated air distribution plate 40 is provided in the lower portion of the boiler 30. Air from a forced draft fan 42 is passed through a line 44 and into the lower portion of the boiler 30 through an opening 46 and flows upwardly through the plate 40 as shown by the dashed arrows in the drawing. Particulate material from a source (not shown) is fed into the chamber 30, mixed with the inert material, shown by the reference numeral 52, which is fluidized by the air passing through the plate. The fuel material may be fed into the boiler 30 by pneumatic injection, and provision can be made for supplementary feed and ash removal, all in a conventional manner.
  • the bed material is an inert material, sized to fluidize at low velocities. It is understood that the velocity and rate of flow of the air passing through the plate 40 and into the bed 52 is regulated so that it is high enough to fluidize the particulate material and obtain good combustion, but low enough to avoid the loss of too many fine fuel particles from the bed.
  • the hot gases from the fluidized bed 52 pass upwardly in the boiler 30, outwardly through an opening in the top thereof and into a duct 54 which registers with an opening formed in the side of the boiler 10.
  • the combustion gases from the boiler 30 pass into the boiler 10 and combine with those from the latter boiler, and the resulting mixture passes upwardly through the boiler 10 and exits through the opening 14 as shown by the dashed arrows.
  • a line connects an upper header 36 to a bank of tubes, shown in general by the reference numeral 62, disposed in the fluidized bed 52, with the outlet of the tubes being connected by a line 64 to the drum 20 of the primary boiler 10.
  • a line 64 to the drum 20 of the primary boiler 10.
  • the steam and water entering the drum 20 from the line 64 and from the line 65 are separated, with the steam being passed to a superheater 66 for further heating and then via a line 70, to another section of the power plant such as a turbine for further use, while the water in the drum 20 is passed, via tubes 22, to the water drum 24 with the water flowing through the tubes 22 being heated by the hot gases exiting from the boiler 10.
  • the water is then routed from the drum 24 via line 26 to the lower headers 18 of the primary boiler, and via line 72 to the water line 38 supplying the tubes 34 of the secondary boiler 30, for further circulation.
  • the boiler 30 thus can receive water from two sources, i.e. the drum 24 in which case it converts the water to steam, and the source 37 in which case it heats the water to a temperature just below saturation and thus operates as an economizer, or feedwater heater.
  • the mixture of combustion gases from the primary boiler and the secondary boiler 30 are passed from the outlet 14 of the primary boiler to an air heater 74 which effects a heat exchange with the gases and air from a forced draft fan 76 introduced into the air heater via a line 78.
  • the gases from the air heater 74 are passed through a line 80 into a dust collector 82 where the fine particles entrained in the gases are separated therefrom.
  • the resulting relatively clean gases from the dust collector 82 are passed via a line 84 to a stack 86 for exhausting the gases to atmosphere.
  • the fine solid particles separated from the gases in the dust collector 82 are passed through a line 88 and to a line 90 which is adapted to inject the particles into the fluidized bed 52 in the boiler 30 and thus supplement the fuel supply from the main source.
  • the heated air from the air heater 74 passes via a line 92 to the line 90 before entering the bed 52.
  • the use of a fluidized bed for the low grade fuel enables the boiler 30 to be operated at a relatively low temperature and thus minimize slagging, while enabling a relatively small bed volume to be used. Also, lower gas velocities can be used in the boiler 30 which permits a longer residence time to ensure complete combustion of the waste material. As a result, low grade waste material, such as woodbark, or the life, can be used to improve the overall efficiency of the power plant.
  • a vapor generating system comprising a primary boiler including a furnace, tube means for containing a heat exchange fluid and for selectively exposing said fluid to the heat from said furnace, and collection means for collecting the heated fluid from said tube means; means for continuously combusting a fluidized bed of fuel of a lower grade than that used in said furnace; additional tube means for containing a heat exchange fluid and for exposing said fluid to the heat from said bed; means for connecting said additional tube means to said collection means for transferring the heated fluid from said additional tube means to said collecting means; means for passing the combustion gases from said fluidized bed into said furnace where they combine with the combustion gases from said furnace, whereby heat recovery is provided from the fluidized bed combustion gases directly to the primary boiler; means for separating the solid particles from the combustion gases leaving said primary boiler; and means for passing said particles into said fluidized bed.
  • a method for generating vapor comprising the steps of passing a heat exchange fluid through a plurality of tubes in a heat exchange relation to a furnace, collecting the heated fluid from said tubes in a drum, continuously combusting a fluidized bed of fuel of a lower grade than that used in said furnace, passing heat exchange fluid through additional tubes in a heat exchange relation to said fluidized bed; transferring the heated fluid from said additional tubes to said drum; passing the combustion gases from said fluidized bed into said furnace where they combine with the combustion gases from said furnace; separating the solid particles from the combustion gases leaving said furnace; and passing said particles into said fluidized bed.
  • a vapor generating system comprising a primary boiler including a furnace, tube means for containing a heat exchange fluid and for selectively exposing said fluid to the heat from said furnace, and collection means for collecting the heated fluid from said tube means; a secondary boiler including means for continuously combusting a fluidized bed of fuel of a lower grade than that used in said furnace, and additional tube means for containing a heat exchange fluid and for exposing said fluid to the heat from said bed; means for connecting said additional tube means to said collection means for transferring the heated fluid from said additional tube means to said collecting means; and means for passing the combustion gases from said secondary boiler into said primary boiler where they combine with the combustion gases from said furnace.
  • a method for generating vapor comprising the steps of passing a heat exchange fluid through a plurality of tubes in a heat exchange relation to a furnace, collecting the heated fluid from said tubes in a drum, continuously combusting a fluidized bed of fuel of a lower grade than that used in said furnace, passing heat exchange fluid through additional tubes in a heat exchange relation to said bed; transferring the heated fluid from said additional tubes to said drum; and pass first tubes.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
US453899A 1974-03-22 1974-03-22 Vapor generating system and method Expired - Lifetime US3884193A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US453899A US3884193A (en) 1974-03-22 1974-03-22 Vapor generating system and method
CA220,996A CA1012018A (en) 1974-03-22 1975-02-28 Vapor generating system and method
JP3420875A JPS531882B2 (es) 1974-03-22 1975-03-20
GB12007/75A GB1486712A (en) 1974-03-22 1975-03-21 Vapour generating system and method
ES435909A ES435909A1 (es) 1974-03-22 1975-03-22 Sistema para generacion de vapor.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US453899A US3884193A (en) 1974-03-22 1974-03-22 Vapor generating system and method

Publications (1)

Publication Number Publication Date
US3884193A true US3884193A (en) 1975-05-20

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US453899A Expired - Lifetime US3884193A (en) 1974-03-22 1974-03-22 Vapor generating system and method

Country Status (5)

Country Link
US (1) US3884193A (es)
JP (1) JPS531882B2 (es)
CA (1) CA1012018A (es)
ES (1) ES435909A1 (es)
GB (1) GB1486712A (es)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2323101A1 (fr) * 1975-09-05 1977-04-01 Metallgesellschaft Ag Procede pour la combustion de matieres contenant du carbone
FR2323872A1 (fr) * 1975-09-12 1977-04-08 Stal Laval Turbin Ab Centrale d'energie
US4111158A (en) * 1976-05-31 1978-09-05 Metallgesellschaft Aktiengesellschaft Method of and apparatus for carrying out an exothermic process
US4116005A (en) * 1977-06-06 1978-09-26 General Electric Company Combined cycle power plant with atmospheric fluidized bed combustor
US4136643A (en) * 1977-08-15 1979-01-30 Sulzer Brothers Limited Waste heat steam generator
US4145995A (en) * 1976-07-14 1979-03-27 Hitachi, Ltd. Method of operating a power plant and apparatus therefor
US4183308A (en) * 1978-03-08 1980-01-15 Foster Wheeler Development Corporation Fluidized bed unit including an electrical air preheat apparatus
US4240378A (en) * 1977-08-18 1980-12-23 Caplin Peter B Combustion apparatus
WO1981001970A1 (en) * 1980-01-18 1981-07-23 Battelle Development Corp Controlling steam temperature to turbines
US4351275A (en) * 1979-10-05 1982-09-28 Stone & Webster Engineering Corp. Solids quench boiler and process
US4355601A (en) * 1981-09-25 1982-10-26 Conoco Inc. Recirculating flue gas fluidized bed heater
US4416418A (en) * 1982-03-05 1983-11-22 Goodstine Stephen L Fluidized bed residential heating system
US4449483A (en) * 1983-01-07 1984-05-22 Electrodyne Research Corporation Unfired drying and sorting apparatus for preparation of solid fuel as a feedstock for a combustor
WO1984001991A1 (en) * 1982-11-12 1984-05-24 Babcock & Wilcox Co Thermal energy storage and recovery apparatus and method for a fossil fuel-fired vapor generator
US4505230A (en) * 1980-10-06 1985-03-19 The Energy Equipment Company Ltd. Fluidized bed combustion units
US4538549A (en) * 1982-03-15 1985-09-03 Studsvik Energiteknik Ab Fast fluidized bed boiler and a method of controlling such a boiler
US4567674A (en) * 1985-05-30 1986-02-04 Electrodyne Research Corp. Unfired drying and sorting apparatus for preparation of solid fuel and other solid material
WO1988005494A1 (en) * 1987-01-22 1988-07-28 Saarbergwerke Aktiengesellschaft Coal combustion with a fluidized incineration bed
EP0299555A1 (en) * 1987-07-03 1989-01-18 Waste Power B.V. Method and apparatus for generating electrical and/or mechanical energy from at least a low-grade fuel
US4829912A (en) * 1988-07-14 1989-05-16 Foster Wheeler Energy Corporation Method for controlling the particulate size distributions of the solids inventory in a circulating fluidized bed reactor
EP0325083A1 (en) * 1988-01-21 1989-07-26 Sener, Ingenieria Y Sistemas, S.A. System for the production of water vapour with high pressure and temperature levels
US4955323A (en) * 1987-07-10 1990-09-11 Foster Wheeler Usa Corporation Fired heater
DE19531027A1 (de) * 1995-08-23 1997-02-27 Siemens Ag Dampferzeuger
EP0924457A3 (de) * 1997-12-16 1999-12-08 ALSTOM Energy Systems GmbH Anlage zur Verbrennung von fossilem Brennstoff und Biostoff oder Abfall
EP1430952A2 (en) * 2002-12-20 2004-06-23 Sistema Ecodeco S.p.A. Method and plant for the use of waste in a conventional electrical power plant
US20090241860A1 (en) * 2008-03-26 2009-10-01 Monacelli John E Enhanced steam cycle utilizing a dual pressure recovery boiler with reheat
US11371392B1 (en) * 2021-01-07 2022-06-28 General Electric Company System and method for improving startup time in a fossil-fueled power generation system

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56129929U (es) * 1980-03-05 1981-10-02
JPS5874528U (ja) * 1981-11-13 1983-05-20 アキレス株式会社 柔軟にして伸縮性に優れた積層体
JPS6235836A (ja) * 1985-08-09 1987-02-16 帝人株式会社 詰物体
CN106247324B (zh) * 2016-08-31 2018-07-06 江苏汇能锅炉有限公司 高效循环流化床燃煤锅炉省煤器
CN106287683B (zh) * 2016-08-31 2018-07-06 江苏汇能锅炉有限公司 循环流化床燃煤锅炉省煤器节能改造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2853455A (en) * 1952-09-09 1958-09-23 Sinclair Refining Co Method of temperature control in fluid catalyst regenerator units
US3118429A (en) * 1961-11-08 1964-01-21 Combustion Eng Power plant in which single cycle gas turbine operates in parallel with direct fired steam generator
US3314231A (en) * 1965-12-29 1967-04-18 Combustion Eng Steaming feedwater system utilizing gas turbine exhaust
US3431892A (en) * 1967-02-17 1969-03-11 Ind De Procedes & D Applic Sa Process and apparatus for combustion and heat recovery in fluidized beds
US3664307A (en) * 1969-07-17 1972-05-23 Riley Stoker Corp Method and apparatus for producing steam

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2853455A (en) * 1952-09-09 1958-09-23 Sinclair Refining Co Method of temperature control in fluid catalyst regenerator units
US3118429A (en) * 1961-11-08 1964-01-21 Combustion Eng Power plant in which single cycle gas turbine operates in parallel with direct fired steam generator
US3314231A (en) * 1965-12-29 1967-04-18 Combustion Eng Steaming feedwater system utilizing gas turbine exhaust
US3431892A (en) * 1967-02-17 1969-03-11 Ind De Procedes & D Applic Sa Process and apparatus for combustion and heat recovery in fluidized beds
US3664307A (en) * 1969-07-17 1972-05-23 Riley Stoker Corp Method and apparatus for producing steam

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2323101A1 (fr) * 1975-09-05 1977-04-01 Metallgesellschaft Ag Procede pour la combustion de matieres contenant du carbone
FR2323872A1 (fr) * 1975-09-12 1977-04-08 Stal Laval Turbin Ab Centrale d'energie
US4085593A (en) * 1975-09-12 1978-04-25 Stal-Laval Turbin Ab Steam power plant with fluidized bed heat source for superheater and method of producing superheated steam
US4111158A (en) * 1976-05-31 1978-09-05 Metallgesellschaft Aktiengesellschaft Method of and apparatus for carrying out an exothermic process
US4145995A (en) * 1976-07-14 1979-03-27 Hitachi, Ltd. Method of operating a power plant and apparatus therefor
US4116005A (en) * 1977-06-06 1978-09-26 General Electric Company Combined cycle power plant with atmospheric fluidized bed combustor
US4136643A (en) * 1977-08-15 1979-01-30 Sulzer Brothers Limited Waste heat steam generator
US4240378A (en) * 1977-08-18 1980-12-23 Caplin Peter B Combustion apparatus
US4183308A (en) * 1978-03-08 1980-01-15 Foster Wheeler Development Corporation Fluidized bed unit including an electrical air preheat apparatus
US4351275A (en) * 1979-10-05 1982-09-28 Stone & Webster Engineering Corp. Solids quench boiler and process
WO1981001970A1 (en) * 1980-01-18 1981-07-23 Battelle Development Corp Controlling steam temperature to turbines
US4312301A (en) * 1980-01-18 1982-01-26 Battelle Development Corporation Controlling steam temperature to turbines
US4505230A (en) * 1980-10-06 1985-03-19 The Energy Equipment Company Ltd. Fluidized bed combustion units
US4355601A (en) * 1981-09-25 1982-10-26 Conoco Inc. Recirculating flue gas fluidized bed heater
US4416418A (en) * 1982-03-05 1983-11-22 Goodstine Stephen L Fluidized bed residential heating system
US4538549A (en) * 1982-03-15 1985-09-03 Studsvik Energiteknik Ab Fast fluidized bed boiler and a method of controlling such a boiler
WO1984001991A1 (en) * 1982-11-12 1984-05-24 Babcock & Wilcox Co Thermal energy storage and recovery apparatus and method for a fossil fuel-fired vapor generator
US4449483A (en) * 1983-01-07 1984-05-22 Electrodyne Research Corporation Unfired drying and sorting apparatus for preparation of solid fuel as a feedstock for a combustor
US4567674A (en) * 1985-05-30 1986-02-04 Electrodyne Research Corp. Unfired drying and sorting apparatus for preparation of solid fuel and other solid material
WO1988005494A1 (en) * 1987-01-22 1988-07-28 Saarbergwerke Aktiengesellschaft Coal combustion with a fluidized incineration bed
EP0299555A1 (en) * 1987-07-03 1989-01-18 Waste Power B.V. Method and apparatus for generating electrical and/or mechanical energy from at least a low-grade fuel
US4955323A (en) * 1987-07-10 1990-09-11 Foster Wheeler Usa Corporation Fired heater
EP0325083A1 (en) * 1988-01-21 1989-07-26 Sener, Ingenieria Y Sistemas, S.A. System for the production of water vapour with high pressure and temperature levels
US4829912A (en) * 1988-07-14 1989-05-16 Foster Wheeler Energy Corporation Method for controlling the particulate size distributions of the solids inventory in a circulating fluidized bed reactor
DE19531027A1 (de) * 1995-08-23 1997-02-27 Siemens Ag Dampferzeuger
WO1997008492A1 (de) * 1995-08-23 1997-03-06 Siemens Aktiengesellschaft Dampferzeuger
EP0924457A3 (de) * 1997-12-16 1999-12-08 ALSTOM Energy Systems GmbH Anlage zur Verbrennung von fossilem Brennstoff und Biostoff oder Abfall
EP1430952A2 (en) * 2002-12-20 2004-06-23 Sistema Ecodeco S.p.A. Method and plant for the use of waste in a conventional electrical power plant
EP1430952A3 (en) * 2002-12-20 2006-04-26 Sistema Ecodeco S.p.A. Method and plant for the use of waste in a conventional electrical power plant
US20090241860A1 (en) * 2008-03-26 2009-10-01 Monacelli John E Enhanced steam cycle utilizing a dual pressure recovery boiler with reheat
US8443606B2 (en) * 2008-03-26 2013-05-21 Babcock & Wilcox Power Generation Group, Inc. Enhanced steam cycle utilizing a dual pressure recovery boiler with reheat
US11371392B1 (en) * 2021-01-07 2022-06-28 General Electric Company System and method for improving startup time in a fossil-fueled power generation system
US20220213815A1 (en) * 2021-01-07 2022-07-07 General Electric Company System and method for improving startup time in a fossil-fueled power generation system
TWI848256B (zh) * 2021-01-07 2024-07-11 瑞士商通用電氣技術公司 在一化石燃料發電系統中用於改善起動時間之系統及方法

Also Published As

Publication number Publication date
ES435909A1 (es) 1976-12-16
GB1486712A (en) 1977-09-21
JPS531882B2 (es) 1978-01-23
JPS50133301A (es) 1975-10-22
CA1012018A (en) 1977-06-14

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