Download or read book Initial Failure Analysis of Ceramic Filters written by and published by . This book was released on 1996 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Effective high temperature ceramic filters are indispensable in the advanced, coal based power systems (IGCC and PFBC). To meet the environmental particulate emission requirements and improve thermal efficiency, ceramic filters are utilized to cleanup the hot gas particulate to protect downstream heat exchanger and gas turbine components from fouling and corrosion. The mechanical integrity of ceramic filters and an efficient dust cake removal system are the key issues for hot gas cleanup systems. The filters must survive combined stresses due to mechanical, thermal, chemical and steam attack throughout normal operations (cold back pulse cleaning jets), unexpected excessive ash accumulation, and the start up and shut down conditions. To evaluate the design and performance of ceramic filters, different long term filter testing programs were conducted. To fulfill this purpose, two Advanced Particle Filter (APF) systems were complete at Tidd PFBC Demonstration Plant in Brilliant, Ohio in late 1990 as part of the Department of Energy's (DOE) Clean Coal Technology Program. However, many filter failures 1649 were reported prior to its desired life time. In Tidd APF vessel, 28 filters failed one time, The objectives of this program were to provide an understanding of the factors pertinent to the failures of ceramic filters by characterizing filter properties and the dust cake removal mechanism, Researches were emphasized on understanding of changes of filter properties and back pulse cleaning mechanism to resolve the issues relating to filter permeability variations, ash bridging and micro-thermal cracks induced during cold back pulse cleaning. To perform failure analysis of ceramic filters, thermal numerical simulation, material laboratory analysis on filter materials and dust cake, and measurements on filter properties and back pulse intensity along filter axis within a bench scale filter chamber were conducted.

Download or read book Characterization and Failure Analysis of Ceramic Filters Utilized for Emission Control During Coal Gasification written by Roksana Khan and published by . This book was released on 1998 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Failure Analysis of Ceramic Filters for Emission Control in Coal Gasification written by Mohannad Rafiq Omeir and published by . This book was released on 1997 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterization and Failure Analysis of Ceramic Filters Utilized for Emission Control Coal Gasification written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced integrated gasification combined cycle (IGCC) and pressurized fluidized bed combustion (PFBC) power system requires both hot gas desulfurization and particulate filtration to improve system thermal efficiency and overall performance. Therefore, effective high temperature ceramic filters are indispensable key component in both of the advanced IGCC and PFBC coal based power systems to perform hot gas cleanup work. To meet the environmental particulate emission requirements and improve thermal efficiency, ceramic filters are mainly utilized to cleanup the hot gas particulate to protect downstream heat exchanger and gas turbine components from fouling and corrosion. The mechanical integrity of ceramic filters and an efficient dust cake removal system are the key issues for hot gas cleanup systems. The filters must survive combined stresses due to mechanical, thermal, chemical and steam attack throughout normal operations (cold back pulse cleaning jets), unexpected excessive ash accumulation, and the start up and shut down conditions. To evaluate the design and performance of ceramic filters, different long term filter testing programs were conducted. To fulfill this purpose, two Advanced Particle Filter (APF) systems were complete at Tidd PFBC Demonstration Plant, in Brilliant, Ohio in late 1990 as part of the Department of Energy's (DOE) Clean Coal Technology Program. But the most undesirable thing ever happened was the sudden functional and physical failures of filters prior to its designed life time. In Tidd APF filter vessel, twenty eight (28) filters failed one time. Significant research effort has been carried out to find out the causes that led to the early failure of filters. In this work, the studies are emphasized on the possible failure causes analysis of rigid ceramic candle filters. The objectives of this program were to provide an systematic study on the characterization of filters, material laboratory analysis on filter micro-structure, the dust cake dislodging mechanism and possible causes led to failures of ceramic filters. These research work includes 1) characterization on filter properties, 2) material laboratory investigation on cracked and un-cracked filter batches, 3) a thermal numerical simulation, 4) various physical testing on filter mechanical integrity and 5) the back pulse cleaning mechanism. These studies provide insights into variations of filter permeability, filter toughness against different mechanical loading impact, microstructure changes of filters, coal ash bridging and micro-thermal cracks induced during the cold back pulse cleaning process. To characterize the physical properties of used and unused ceramic filters, filter permeabilities and the pressure field of the gas stream were measured within a filter chamber with the use of fast response pressure transducers and an automatic data acquisition system. Used filters displayed non-uniform permeability distribution along its axis; and these variations developed asymmetric flow pattern in the filter chamber.

Download or read book Characterization and Failure Analysis of Ceramic Filters Utilized for Emission Control During Coal Gasification Quarterly Report July 1 September 30 1997 written by and published by . This book was released on 1997 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research activities performed at PV A and M University in the third quarter of 1997 are summarized within. PV A and MU had performed mechanical and back pulse testing to characterize the performance of the filter and is using the process of elimination to perform the failure analysis for filters. The mechanical testing performed on the filters are categorized as follows: the acceleration testing; the vibration testing; the air jet impulse testing; and the impact testing. The major work completed in the third quarter, 1997 for filter back pulse cleaning testing included the following items: (1) the completion of the test system; (2) the procurement of particulate sample; (3) the development of a data acquisition system; (4) the filtration pressure field monitoring with the use of micro-fast pressure sensor assembly; (5) the design of a back pulse system; (6) completed a back pulse cleaning test plan; and (7) started performing parametric testing on particulate removal. The bulk of this report consists of a user's manual for the automatic testing on instrumentation interfacing.

Download or read book Characterization and Failure Analysis of Ceramic Filters Utilized for Emission Control During Coal Gasification Quarterly Report April 1 June 30 1995 written by and published by . This book was released on 1997 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tasks associated with research in candle filters are described. Candle filters will be tested for permeability measurements, pressure distribution evaluation, and microanalysis.

Download or read book Characterization and Failure Analysis of Ceramic Filters Utilized for Emission Control During Coal Gasification Topical Report October 1 1995 September 30 1996 written by and published by . This book was released on 1998 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ceramic filters for pollutant emission control from coal gasification have been evaluated. The following were investigated: permeability, cleaning, back pulse pressure distribution measurement within candle filter without dust cake, and optimization on back pulse system design.

Download or read book Characterization and Failure Analysis of Ceramic Filters Utilized for Emission Control During Coal Gasification Quarterly Report July 1 September 30 1996 written by and published by . This book was released on 1996 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research activities performed during the report period include: evaluation of filter samples as well as different type of filters; providing test data as a data base to verify gas stream flow numerical simulation of a filter test chamber; and characterization of the physical properties of ceramic candle filter gas flow properties in the newly completed test facility. The test facility sub-assemblies are described and test data are presented.

Download or read book Multifunctional Ceramic Filter Systems for Metal Melt Filtration written by Christos G. Aneziris and published by Springer Nature. This book was released on with total page 883 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterization and Control of Interfaces for High Quality Advanced Materials III written by Kevin Ewsuk and published by John Wiley & Sons. This book was released on 2010-09-29 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings volume features 59 peer-reviewed papers from ICCCI2009 on interface characterization and control technology, powder and composite processing, joining, the control of airborne particulates, new metallic glasses, and interface phenomena at high temperature. ICCCI2009 was supported by the Global COE Program “Center of Excellence for Advanced Structural and Functional Materials Design” lead by Professor Tomoyuki Kakeshita at Osaka University, the Project on Joining Technology for New Metallic Glasses and Inorganic Materials, the Institute of Materials Research (IMR) of Tohoku University, the Materials and Structures Laboratory (MSL) of the Tokyo Institute of Technology, Kobe Gakuin University, Hosokawa Powder Technology Foundation, the Japan JSPS 124th Committee, and the Joining and Welding Research Institute (JWRI) of Osaka University. Over 160 scientists and engineers from academia and industry from 18 different countries attended ICCCI2009 to see and discuss 140 invited and contributed presentations and posters on the state-of-the-art of interface characterization and control for particulate materials, joining, and nanotechnology.

Download or read book Department of the Interior and Related Agencies Appropriations for Fiscal Year 1994 Department of Agriculture Energy Health and Human Services Interior Smithsonian Institution written by United States. Congress. Senate. Committee on Appropriations. Subcommittee on the Department of the Interior and Related Agencies and published by . This book was released on 1994 with total page 1618 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hot Gas Particulate Filtration written by Stuart C. Mitchell and published by . This book was released on 1997 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ISTFA 2006 written by Electronic Device Failure Analysis Society and published by ASM International. This book was released on 2006 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Department of the Interior and Related Agencies Appropriations for Fiscal Year 1994 written by United States. Congress. Senate. Committee on Appropriations. Subcommittee on the Department of the Interior and Related Agencies and published by . This book was released on 1994 with total page 1726 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Assessment of the Causes of Failure of Ceramic Filters for Hot gas Cleanup in Fossil Energy Systems and Determination of Materials Research and Development Needs written by John Sawyer and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Developments in Surface Contamination and Cleaning Volume 4 written by Rajiv Kohli and published by William Andrew. This book was released on 2011-09-26 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this series Rajiv Kohli and Kash Mittal have brought together the work of experts from different industry sectors and backgrounds to provide a state-of-the-art survey and best-practice guidance for scientists and engineers engaged in surface cleaning or handling the consequences of surface contamination. The expert contributions in this volume cover important fundamental aspects of surface contamination that are key to understanding the behavior of specific types of contaminants. This understanding is essential to develop preventative and mitigation methods for contamination control. The coverage complements the treatment of surface contamination in vol.1, Fundamental and Applied Aspects. This volume covers: Sources and Generation of Particles; Manipulation Techniques for Particles on Surfaces; Particle Deposition and Rebound; Particle Behavior in Liquid Systems; Biological and Metallic Contamination; and includes a comprehensive list of current standards and resources. Comprehensive coverage of innovations in surface contamination and cleaning Written by established experts in the contamination and cleaning field Each chapter is a comprehensive review of the state of the art Case studies included