Atmospheric Fluidized Bed Combustion Advanced Concept System

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Atmospheric Fluidized Bed Combustion Advanced Concept System Final Report

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Author :
language : en
Publisher:
Release Date : 1992

Atmospheric Fluidized Bed Combustion Advanced Concept System Final Report written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with categories.

DONLEE Technologies Inc. is developing with support of the US Department of Energy an advanced circulating fluidized bed technology known as the Vortex{trademark} Fluidized Bed Combustor (VFBC). The unique feature of the VFBC is the injection of a significant portion of the combustion air into the cyclone. Since as much as one-half of the total combustion air is injected into the cyclone, the cross-sectional area of the circulating fluidized bed is considerably smaller than typical circulating fluidized beds. The technology is being developed for two applications: Industrial-scale boilers ranging from 20,000 to 100,000 pounds per hour steam generating capacity; and two-stage combustion in which a substoichiometric Vortex Fluidized Bed Combustor (2VFBC) or precombustor is used to generate a combustible gas for use primarily in boiler retrofit applications. This Level II analysis of these two applications indicates that both have merit. An industrial-scale VFBC boiler (60,000 lb/hr of steam) is projected to be economically attractive with coal prices as high as $40 per ton and gas prices between $4 and $5 per thousand cubic feet. The payback time is between 3 and 4 years. The 2VFBC system was evaluated at three capacities of application: 20,000; 60,000 and 100,000 lb/hr of steam. The payback times for these three capacities are 4.5, 2.1 and 1.55 years, respectively. The 2VFBC has potential applications for retrofit of existing pulverized coal-fired boilers or as a new large (utility) boiler. Pressurized operation of the 2VFBC has considerable potential for combined cycle power generation applications. Experimental development of both applications is presented here to demonstrate the potential of these two technologies.

Atmospheric Fluidized Bed Combustion Advanced Concept System

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Author :
language : en
Publisher:
Release Date : 1992

Atmospheric Fluidized Bed Combustion Advanced Concept System written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with categories.

DONLEE Technologies Inc. is developing with support of the US Department of Energy an advanced circulating fluidized bed technology known as the Vortex{trademark} Fluidized Bed Combustor (VFBC). The unique feature of the VFBC is the injection of a significant portion of the combustion air into the cyclone. Since as much as one-half of the total combustion air is injected into the cyclone, the cross-sectional area of the circulating fluidized bed is considerably smaller than typical circulating fluidized beds. The technology is being developed for two applications: Industrial-scale boilers ranging from 20,000 to 100,000 pounds per hour steam generating capacity; and two-stage combustion in which a substoichiometric Vortex Fluidized Bed Combustor (2VFBC) or precombustor is used to generate a combustible gas for use primarily in boiler retrofit applications. This Level II analysis of these two applications indicates that both have merit. An industrial-scale VFBC boiler (60,000 lb/hr of steam) is projected to be economically attractive with coal prices as high as $40 per ton and gas prices between $4 and $5 per thousand cubic feet. The payback time is between 3 and 4 years. The 2VFBC system was evaluated at three capacities of application: 20,000; 60,000 and 100,000 lb/hr of steam. The payback times for these three capacities are 4.5, 2.1 and 1.55 years, respectively. The 2VFBC has potential applications for retrofit of existing pulverized coal-fired boilers or as a new large (utility) boiler. Pressurized operation of the 2VFBC has considerable potential for combined cycle power generation applications. Experimental development of both applications is presented here to demonstrate the potential of these two technologies.

Atmospheric Fluidized Bed Combustion Advanced System Concepts Applicable To Small Industrial And Commercial Markets Topical Report Level 2

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Author :
language : en
Publisher:
Release Date : 1992

Atmospheric Fluidized Bed Combustion Advanced System Concepts Applicable To Small Industrial And Commercial Markets Topical Report Level 2 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with categories.

As part of an overall strategy to promote FBC coal combustion and to improve the marketability of the eastern coals, the US Department of Energy's Morgantown Energy Research Center awarded a three level contract to Riley Stoker Corporation to develop advanced Multi Solids Fluidized Bed (MSFB) boiler designs. The first level of this contract targeted the small package boiler (10,000--50,000 lb/hr steam) and industrial size boiler (75,000--150,000 lb/hr steam) markets. Two representative sizes, 30,000 lb/hr and 110,000 lb/hr of steam, were selected for the two categories for a detailed technical and economic evaluation. Technically, both the designs showed promise, however, the advanced industrial design was favored on economic considerations. It was thus selected for further study in the second level of the contract. Results of this Level-2 effort, presented in this report, consisted of testing the design concept in Riley's 4.4 MBtu/hr pilot MSFB facility located at Riley Research Center in Worcester, Mass. The design and economics of the proof of concept facility developed in Level-1 of the contract were then revised in accordance with the findings of the pilot test program. A host site for commercial demonstration in Level-3 of the contract was also secured. It was determined that co-firing coal in combination with paper de-inking sludge will broaden the applicability of the design beyond conventional markets. International Paper (IP), the largest paper company in the world, is willing to participate in this part of the program. IP has offered its Hammermill operation at Lockhaven, Pa, site of a future paper de-inking plant, for the proof of concept installation. This plant will go in operation in 1994. It is recommended that METC proceed to the commercial demonstration of the design developed. The approach necessary to satisfy the needs of the customer while meeting the objectives of this program is presented along with a recommended plan of action.

Fluidized Bed Boilers

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Author : Prabir Basu
language : en
Publisher: Elsevier
Release Date : 2013-10-22

Fluidized Bed Boilers written by Prabir Basu and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-22 with Technology & Engineering categories.

Fluidized Bed Boilers: Design and Application attempts to address the need for a single source of information covering all major areas of fluidized bed boiler design and operation. It is based on the International Workshop on Design and Operation of Atmospheric Pressure Fluidized Bed Boilers, organized by the Center for Energy Studies, Technical University of Nova Scotia in Halifax on 24-45 June 1983. The volume begins by presenting a simplified approach to the design of a fluidized bed boiler and an overview of problems in fluidized-bed combustion (FBC). These are followed by separate chapters on the equations and concepts needed to estimate key hydrodynamic parameters; the key factors and terms to be considered in selecting FBC for specific applications; and principles in the design of air distributors for a fluidized bed boiler. Subsequent chapters discuss heat transfer to surfaces in fluidized beds; the pollution control of fluidized bed combustion of solid fuels; and materials selection in atmospheric fluidized bed combustion systems. The final two chapters are devoted to applications. These include the operational and performance results of TVA’s 20-MW Atmospheric Fluidized Bed Combustion (AFBC) Pilot Plant in Kentucky; and the performance of Canada's first commercial FBC boiler plant, located at CFB Summerside, PEI.

A Comparison Of Atmospheric Fluidized Bed Combustion Conceptual Designs For Utility Steam Generation

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Author : Radian Corporation
language : en
Publisher:
Release Date : 1979

A Comparison Of Atmospheric Fluidized Bed Combustion Conceptual Designs For Utility Steam Generation written by Radian Corporation and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Combustion categories.

Development Of Topping Combustor For Advanced Concept Pressurized Fluidized Bed Combustion

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Author :
language : en
Publisher:
Release Date : 1994

Development Of Topping Combustor For Advanced Concept Pressurized Fluidized Bed Combustion written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with categories.

The objective of this program is to develop a topping combustor to operate in a Second-Generation Pressurized Fluidized Bed (PFBC) Combined Cycle power generation system. The combustor must be able to: lightoff with a high heating value fuel and compressor discharge air to heat the fluidized bed(s) and provide power for PFBC and carbonizer off-line; operate with 1,600 F oxygen depleted air from the PFBC and high heating value fuel to handle carbonizer off-line conditions; ramp up to 100% carbonizer syngas firing (normal operation) by firing a blend of decreasing high heating value fuel and increasing low heating value syngas; utilize the vitiated air, at temperatures up to 1,600 F for as much cooling of the metal combustor as possible, thus minimizing the compressor bypass air needed for combustor cooling; provide an acceptance exit temperature pattern at the desired burner outlet temperature (BOT); minimize the conversion of fuel bound nitrogen (FBN) present in the syngas to NO(subscript x); and have acceptably high combustion efficiency, and low emissions of carbon monoxide, UHC, etc. This paper reports the results of tests of a 14 inch diameter topping combustor with a modified fuel-rich zone conducted in June 1993, design of an 18 inch diameter topping combustor to be tested in June 1994 and afterwards, and results of a 50% scale cold flow model which has been built and tested.

Advanced Atmospheric Fluidized Bed Combustion Design Internally Circulating Afbc

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Author : R. A. Newby
language : en
Publisher:
Release Date : 1983

Advanced Atmospheric Fluidized Bed Combustion Design Internally Circulating Afbc written by R. A. Newby and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Coal categories.

Development Of A Topping Combustor For Advanced Concept Pressurized Fluidized Bed Combustion Systems

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Author :
language : en
Publisher:
Release Date : 1995

Development Of A Topping Combustor For Advanced Concept Pressurized Fluidized Bed Combustion Systems written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with categories.

A project team consisting of Foster Wheeler Development Corporation, Westinghouse Electric Corporation, Gilbert/Commonwealth and the Institute of Gas Technology, are developing a Second Generation Pressurized Fluidized Bed System. Foster Wheeler is developing a carbonizer (a partial gasifier) and a pressurized fluidized bed combustor. Both these units operate at a nominal 1600°F (870°C) for optimal sulfur capture. Since this temperature is well below the current combustion turbine combustor outlet operating temperature of 2350°F (1290°C), to reach commercialization, a topping combustor and hot gas cleanup (HGCU) equipment must be developed. Westinghouse's efforts are focused on the development of the high temperature gas cleanup equipment and the topping combustor. This paper concentrates on the design and test of the topping combustor, which must use a low heating value syngas from the carbonizer at approximately 1600°F and 150 to 210 psi.

Advanced Design For Pulsed Atmospheric Fluidized Bed Combustion

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Author : N. A. Mousa
language : en
Publisher:
Release Date : 1982

Advanced Design For Pulsed Atmospheric Fluidized Bed Combustion written by N. A. Mousa and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Coal categories.

Conceptual Design Of An Atmospheric Fluidized Bed Combustion Electric Power Generating Plant

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Author : Burns and Roe
language : en
Publisher:
Release Date : 1977

Conceptual Design Of An Atmospheric Fluidized Bed Combustion Electric Power Generating Plant written by Burns and Roe and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with categories.