Download or read book Prediction of the Effects of Coal Quality on Utility Furnace Performance written by Joseph David Smith and published by . This book was released on 1984 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Developing a Coal Quality Expert written by and published by . This book was released on 1991 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall objective of the Coal Quality Expert (CQE) Clean Coal I Program is the development of a Coal Quality Expert -- a comprehensive PC based expert system for evaluating the potential for coal cleaning, blending and switching options to reduce emissions while producing the lowest cost electricity. A key part of the CQE model will be the development of a sub-model to predict the effects of ash deposition on boiler performance under various operating conditions. To facilitate sub-model development, a combination of full, pilot, and bench scale testing has been carried out on a series of coals and coal blends which were of interest to the Public Service of Oklahoma (PSO) at their Northeastern Station. A series of full-scale tests were also performed on PSO's Northeastern Unit {number sign}4 to characterize boiler performance when firing a baseline coal'' (their normal or desired fuel feed stock) and two blends comprised of the baseline coal blended with various amounts of an alternate coal. Actual furnace conditions were then closely matched during a series of tests performed in Combustion Engineering's pilot scale combustor, the Fireside Performance Test Facility (FPTF). Pilot scale testing allowed in-depth analyses of furnace deposits during and after formation under well-controlled conditions. Ash deposit properties were characterized during pilot scale furnace operation and in subsequent bench scale analyses. Determination of deposit behavior as a function of important operating parameters during the FPTF testing has permitted the prediction of expected performance for various coal/coal blends in PSO's Northeastern Units and allows a prediction of boiler performance for other units firing these fuels.
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1 957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna tional publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 29 (thesis year 1984) a total of 12,637 theses titles from 23 Canadian and 202 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 29 reports theses submitted in 1984, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.
Download or read book NOx Modelling and Prediction written by Ruksana Moreea-Taha and published by . This book was released on 2000 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coal Quality and Combustion Performance written by John F. Unsworth and published by Elsevier Publishing Company. This book was released on 1991 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt: The scope and major findings of a research programme which has aimed to improve the scientific understanding of a wide range of aspects concerning coal utilisation in utility boilers is described in this book. The pragmatic investigations undertaken by Shell Research are set against the background of recent work of other researchers and establishes usable links between the quality and performance of a variety of coal types. The first section deals with analytical inspection properties of the coals and the structure of both the organic macerals and the associated minerals. Nitrogen and sulphur containing components are considered, together with the relationship between petrography and mineral matter. The second section addresses the influence of organic structure pulverised fuel preparation and combustion. The effect of coal quality on rapid pyrolysis of coal particles in a flame and subsequent char combustion is described and empirical models for the prediction of flame stability and char burn-out are presented. The final section deals with ash formation and deposition on boiler walls and tubes, together with the control of pollutant emissions.The objective of the book is to present scientific information on coal utilisation in a form which is accessible not only to researchers but also to those engaged in the day-to-day business of the coal trade.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1993 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Coal Quality on In furnace NO x Reduction Efficiency written by Energy Technology Support Unit (ETSU), Harwell (GB). Coal R&D Programme and published by . This book was released on 1994 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development and Application of the Coal Quality Impact Model written by and published by . This book was released on 1990 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Combustion Quality of Coal and Lignite written by Jayanta Bhattacharya and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coal is back to the centre stage in the global energy scene with all its right attributes vis-a-vis affordability, reliability and acceptability. A surge in global coal production can be predicted with a flurry of activity in acquisitions of coal properties in remote corners of the world. It is in this context, apart from the increasingly traded volume of coal, that assessment of coal quality becomes an area of seminal importance. The objectives of this book include looking at the potential impacts that different-quality coals may have on combustion performance, the possibility of predicting performance from known coal-quality parameters, and the potential impact of burning low grade, high-ash coals on aspects such as heat transfer within a furnace-boiler system. Topics covered include the combustion characteristics of coal and lignite, the specificity of properties vis-a-vis metallurgical coal, the means and methods of quality control through blending, and the principles of sampling and statistical quality control.
Download or read book Effect of Coal Quality on In furnace NO x Reduction Efficiency written by G. Hesselmann and published by . This book was released on 1997 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Application of Advanced Coal Combustion Models to the Prediction of Furnace Performance written by David John Waldron and published by . This book was released on 2005 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of coal quality on in furnace NOx reduction efficiency written by G. J. Hesselmann and published by . This book was released on 1997 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fossil Energy Update written by and published by . This book was released on 1976 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of a Coal Quality Expert written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ABB Power Plant Laboratories Combustion Engineering, Inc., (ABB CE) and CQ Inc. completed a broad, comprehensive program to demonstrate the economic and environmental benefits of using higher quality U.S. coals for electrical power generation and developed state-of-the-art user-friendly software--Coal Quality Expert (CQE)-to reliably predict/estimate these benefits in a consistent manner. The program was an essential extension and integration of R and D projects performed in the past under U.S. DOE and EPRI sponsorship and it expanded the available database of coal quality and power plant performance information. This software will permit utilities to purchase the lowest cost clean coals tailored to their specific requirements. Based on common interest and mutual benefit, the subject program was cosponsored by the U.S. DOE, EPRI, and eight U.S. coal-burning utilities. In addition to cosponsoring this program, EPN contributed its background research, data, and computer models, and managed some other supporting contracts under the terms of a project agreement established between CQ Inc. and EPRI. The essential work of the proposed project was performed under separate contracts to CQ Inc. by Electric Power Technologies (El?'T), Black and Veatch (B and V), ABB Combustion Engineering, Babcock and Wilcox (B and W), and Decision Focus, Inc. Although a significant quantity of the coals tied in the United States are now cleaned to some degree before firing, for many of these coals the residual sulfur content requires users to install expensive sulfur removal systems and the residual ash causes boilers to operate inefficiently and to require frequent maintenance. Disposal of the large quantities of slag and ash at utility plant sites can also be problematic and expensive. Improved and advanced coal cleaning processes can reduce the sulfur content of many coals to levels conforming to environmental standards without requiring post-combustion desulfurization systems. Also, some coals may be beneficiated or blended to a quality level where significantly less costly desulfurization systems are needed. Coal cleaning processes may also be used to remove the precursors of other troublesome emissions that can be identified now or in the future. An added benefit of coal cleaning and blending is the reduction in concentrations of mineral impurities in the fuel leading to improved performance and operation of the'' boiler in which it is fired. The ash removed during the pre-combustion cleaning process can be more easily and safely disposed of at the mine than at the utility plant after combustion. EPRI's Coal Quality Impact Model (CQIM) has shown that improved fuel quality can result in savings in unit capital and operating costs. This project produced new and improved software to select coal types and specifications resulting in the best quality and lowest cost fuel to meet specific environmental requirements.
Download or read book Paper written by and published by . This book was released on 1994 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Review of New Source Performance Standards for Coal Fired Utility Boilers written by U.S. Environmental Protection Agency and published by BiblioGov. This book was released on 2013-10 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
