Empirical Prediction of Ash Deposition Propensities in Coal-fired Utilities

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Publisher :
ISBN 13 :
Total Pages : 22 pages
Book Rating : 4.:/5 (477 download)

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Book Synopsis Empirical Prediction of Ash Deposition Propensities in Coal-fired Utilities by : F. Frandsen

Download or read book Empirical Prediction of Ash Deposition Propensities in Coal-fired Utilities written by F. Frandsen and published by . This book was released on 1997 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Impact Of Ash Deposition On Coal Fired Plants

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Publisher : Taylor & Francis
ISBN 13 : 1351410261
Total Pages : 1103 pages
Book Rating : 4.3/5 (514 download)

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Book Synopsis The Impact Of Ash Deposition On Coal Fired Plants by : Jim Williamson

Download or read book The Impact Of Ash Deposition On Coal Fired Plants written by Jim Williamson and published by Taylor & Francis. This book was released on 2022-10-12 with total page 1103 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coal provides almost 40% of the world's electricity, and despite the understandable concern with respect to the environmental impact associated with coal use, forecasts from the International Energy Agency predict, that worldwide coal use will increase by up to 2% per annum until the year 2OlO. Faced with this increase, it is clearly important that the most efficient and environmentally acceptable clean coal technologies are available. This book is comprised of the proceedings of the Engineering Foundation Conference held in June 1993 in England. The objective of the conference was to present ideas on methods of predicting and reducing the effects of ash deposition in coal conversion systems, highlighting the problems experienced in industry, considering both utilities and industrial plants, and providing a view of the technology of coal ash deposition and its impact. Better techniques are needed to reduce the impact of ash deposition in coal fired plants, and these proceedings should form a reference document for anyone either experiencing slagging or actively engaged in trying to understand or eliminate the phenomenon.

Applications of Advanced Technology to Ash-Related Problems in Boilers

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Publisher : Springer Science & Business Media
ISBN 13 : 1475792239
Total Pages : 655 pages
Book Rating : 4.4/5 (757 download)

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Book Synopsis Applications of Advanced Technology to Ash-Related Problems in Boilers by : L. Baxter

Download or read book Applications of Advanced Technology to Ash-Related Problems in Boilers written by L. Baxter and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 655 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses the behavior of inorganic material in combustion systems. The past decade has seen unprecedented improvements in understanding the rates and mecha nisms of inorganic transformations and in developing analytical tools to predict them. These tools range from improved fuel analysis procedures to predictive computer codes. While this progress has been met with great enthusiasm within the research community, the practices of the industrial community remain largely unchanged. The papers in this book were selected from those presented at an Engineering Foundation Conference of the same title. All have been peer reviewed. The intent of the conference was to illustrate the application of advanced technology to ash-related problems in boilers and, by so doing, engage the research and industrial communities in more productive dialog. Those attending the conference generally felt that we were successful on these counts. We also engaged the industrial community to a greater extent than ever before in the conference discussion and presentation. We hope these proceedings will facilitate a continued and improved interaction between industrial and research communities. Behavior of inorganic material has long been recognized as one of the major considerations affecting the design and operation of boilers that burn ash-producing fuels. The practical problems associated with the behavior are sometimes catastrophic and spec tacular, ranging from major slag falls that damage the bottom of furnaces to complete plugging of convection passes.

The Impact Of Ash Deposition On Coal Fired Plants

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Publisher : CRC Press
ISBN 13 : 9781560322931
Total Pages : 818 pages
Book Rating : 4.3/5 (229 download)

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Book Synopsis The Impact Of Ash Deposition On Coal Fired Plants by : Jim Williamson

Download or read book The Impact Of Ash Deposition On Coal Fired Plants written by Jim Williamson and published by CRC Press. This book was released on 1994-06-01 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proceedings of the Engineering Foundation Conference held in June 1993 in England. The conference aim was to present ideas on methods of predicting and reducing the effects of ash deposition in coal conversion systems and provide a view of the technology of coal ash deposition and its impact.

Prediction of Ash Deposition for Biomass Combustion and Coal

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Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (861 download)

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Book Synopsis Prediction of Ash Deposition for Biomass Combustion and Coal by : Mohammed Umar Garba

Download or read book Prediction of Ash Deposition for Biomass Combustion and Coal written by Mohammed Umar Garba and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis, a model that couples a reduced alkali kinetic mechanism for alkali sulphate formation during biomass combustion with an ash deposition model using computational fluid dynamics (CFD) techniques has been presented. Starting with a detailed gas-phase kinetic mechanism for the alkali chemistry, a systematic reduction procedure has been performed using a sensitivity analysis to reduce the reaction mechanism to a level that can be implemented into a CFD calculation. An ash deposition model that takes into consideration the ash-sticking probability and the condensation of potassium salts has been developed. The reduced mechanism and the deposition model developed are implemented into a CFD model to predict ash depositions in a 10 MWth biomass grate furnace. Also, a CFD model to predict the deposition rates for the co-combustion of coal with biomass has been developed. This deposition model is based on the combined sticking probabilities of the ash particle viscosity and the melting behaviour of the ash particles. A Numerical Slagging Index (NSI) is also employed to estimate the degree of the sintering of the deposits. Experimental data from the Entrained Flow Reactor (EFR) at Imperial College, London, have been used to validate the models. The predicted results from both the ash deposition models agreed with the experimental measurements, and the NSI has successfully ranked the investigated coal-biomass mixtures according to their degree of sintering.

Inorganic Transformations and Ash Deposition During Combustion

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Author :
Publisher : American Society of Mechanical Engineers
ISBN 13 :
Total Pages : 952 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Inorganic Transformations and Ash Deposition During Combustion by : Steven A. Benson

Download or read book Inorganic Transformations and Ash Deposition During Combustion written by Steven A. Benson and published by American Society of Mechanical Engineers. This book was released on 1992 with total page 952 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Mineral Matter and Ash Deposition from Coal

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Publisher :
ISBN 13 :
Total Pages : 672 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Mineral Matter and Ash Deposition from Coal by :

Download or read book Mineral Matter and Ash Deposition from Coal written by and published by . This book was released on 1990 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Ash from Coal and Biomass Combustion

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Publisher : Springer Nature
ISBN 13 : 3030569810
Total Pages : 126 pages
Book Rating : 4.0/5 (35 download)

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Book Synopsis Ash from Coal and Biomass Combustion by : Ashok K. Singh

Download or read book Ash from Coal and Biomass Combustion written by Ashok K. Singh and published by Springer Nature. This book was released on 2020-09-12 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a concise book with comprehensive information on coal and biomass ash generated from their combustion in thermal power plants. It presents detailed studies on ash generated from contrasting coal and biomass feedstocks, and provides a comparative evaluation of these different ashes in terms of their origin, properties, environmental hazards. Potential utilizations with specific advantages and disadvantages of the respective ashes are elaborated in detail, including some innovative means of ash utilization for value addition purposes. By addressing both the theory and commercial exploitation of these products, this book will be helpful for industrialists, academicians and researchers alike.

Coal Quality and Ash Characteristics

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Publisher : OECD ; Washington, D.C. : OECD Publications and Information Center
ISBN 13 :
Total Pages : 70 pages
Book Rating : 4.:/5 (41 download)

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Book Synopsis Coal Quality and Ash Characteristics by : IEA Coal Industry Advisory Board

Download or read book Coal Quality and Ash Characteristics written by IEA Coal Industry Advisory Board and published by OECD ; Washington, D.C. : OECD Publications and Information Center. This book was released on 1985 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Investigation of Mineral Transformations and Ash Deposition During Staged Combustion. Quarterly Technical Progress Report, October 1, 1993--December 31, 1993

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Publisher :
ISBN 13 :
Total Pages : 11 pages
Book Rating : 4.:/5 (685 download)

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Book Synopsis Investigation of Mineral Transformations and Ash Deposition During Staged Combustion. Quarterly Technical Progress Report, October 1, 1993--December 31, 1993 by :

Download or read book Investigation of Mineral Transformations and Ash Deposition During Staged Combustion. Quarterly Technical Progress Report, October 1, 1993--December 31, 1993 written by and published by . This book was released on 1994 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: A thorough understanding of the fundamental processes which govern the mineral behavior is essential to the development of tools to predict and manage ash deposition. The purpose of the current project is to perform a fundamental study of mineral transformations and ash deposition during staged combustion of pulverized coal. Staging of combustion air is a strategy used to reduce NO(subscript x) emissions from coal-fired units. It is applicable to both advanced combustion systems currently under development (e.g. HITAF) and low NO(subscript x) retrofits for existing units. These low NO(subscript x) combustion strategies produce fuel rich or reducing conditions in the lower furnace. Therefore, the combustion history of the coal particles is significantly changed from that experienced under normal combustion conditions. A carefully designed experimental study is needed to examine the effects of altered combustion conditions on mineral matter release, fly ash formation, particle stickiness and deposit formation. This project uses state-of-the-art analytical equipment and a well-characterized laboratory combustor to address this need. This report describes work in the initial quarter of a fundamental, three-year study of mineral transformations and ash deposition during staged combustion.

Investigation of Coal Ash Deposition Under Staged Combustion in a Pilot-scale Facility

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Publisher :
ISBN 13 :
Total Pages : 279 pages
Book Rating : 4.:/5 (814 download)

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Book Synopsis Investigation of Coal Ash Deposition Under Staged Combustion in a Pilot-scale Facility by : Neal L. Adair

Download or read book Investigation of Coal Ash Deposition Under Staged Combustion in a Pilot-scale Facility written by Neal L. Adair and published by . This book was released on 1999 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Neu Bilder aus der Peterburger

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Publisher :
ISBN 13 :
Total Pages : 318 pages
Book Rating : 4.:/5 (693 download)

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Book Synopsis Neu Bilder aus der Peterburger by :

Download or read book Neu Bilder aus der Peterburger written by and published by . This book was released on 1874 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Unsteady Modeling on Fly Ash Deposition in Full-scale Gas-to-gas Heaters for Ultrasupercritical Pulverized Coal-fired Power Plant Applications

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Publisher :
ISBN 13 :
Total Pages : 59 pages
Book Rating : 4.:/5 (19 download)

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Book Synopsis Unsteady Modeling on Fly Ash Deposition in Full-scale Gas-to-gas Heaters for Ultrasupercritical Pulverized Coal-fired Power Plant Applications by : Sandeep Aryal

Download or read book Unsteady Modeling on Fly Ash Deposition in Full-scale Gas-to-gas Heaters for Ultrasupercritical Pulverized Coal-fired Power Plant Applications written by Sandeep Aryal and published by . This book was released on 2018 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Transformations of Inorganic Coal Constituents in Combustion Systems. Volume 1, Sections 1--5

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Publisher :
ISBN 13 :
Total Pages : 566 pages
Book Rating : 4.:/5 (727 download)

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Book Synopsis Transformations of Inorganic Coal Constituents in Combustion Systems. Volume 1, Sections 1--5 by :

Download or read book Transformations of Inorganic Coal Constituents in Combustion Systems. Volume 1, Sections 1--5 written by and published by . This book was released on 1992 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: The inorganic constituents or ash contained in pulverized coal significantly increase the environmental and economic costs of coal utilization. For example, ash particles produced during combustion may deposit on heat transfer surfaces, decreasing heat transfer rates and increasing maintenance costs. The minimization of particulate emissions often requires the installation of cleanup devices such as electrostatic precipitators, also adding to the expense of coal utilization. Despite these costly problems, a comprehensive assessment of the ash formation and had never been attempted. At the start of this program, it was hypothesized that ash deposition and ash particle emissions both depended upon the size and chemical composition of individual ash particles. Questions such as: What determines the size of individual ash particles? What determines their composition? Whether or not particles deposit? How combustion conditions, including reactor size, affect these processes? remained to be answered. In this 6-year multidisciplinary study, these issues were addressed in detail. The ambitious overall goal was the development of a comprehensive model to predict the size and chemical composition distributions of ash produced during pulverized coal combustion. Results are described.

The Prediction of Ash Deposition in Pulverised Fuel Fired Combustion

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Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (93 download)

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Book Synopsis The Prediction of Ash Deposition in Pulverised Fuel Fired Combustion by :

Download or read book The Prediction of Ash Deposition in Pulverised Fuel Fired Combustion written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Research on Thermophoretic and Inertial Aspects of Ash Particle Deposition on Heat Exchanger Surfaces in Coal-fired Equipment

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Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (727 download)

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Book Synopsis Research on Thermophoretic and Inertial Aspects of Ash Particle Deposition on Heat Exchanger Surfaces in Coal-fired Equipment by :

Download or read book Research on Thermophoretic and Inertial Aspects of Ash Particle Deposition on Heat Exchanger Surfaces in Coal-fired Equipment written by and published by . This book was released on 1990 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall goal of this research in the area of ash transport was to advance the capability of making reliable engineering predictions of the dynamics and consequences of net deposit growth for surfaces exposed to the products of coal combustion. To accomplish this for a wide variety of combustor types, coal types, and operating conditions, this capability must be based on a quantitative understanding of each of the important mechanisms of mineral matter transport, as well as the nature of the interactions between these substances and the prevailing fireside'' surface of the deposit. This level of understanding and predictive capability could ultimately be translated into very significant cost reductions for coal-fired equipment design, development and operation.

Tenth International Ash Use Symposium - Proceedings

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Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (859 download)

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Book Synopsis Tenth International Ash Use Symposium - Proceedings by : American Coal Ash Association

Download or read book Tenth International Ash Use Symposium - Proceedings written by American Coal Ash Association and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: