Download or read book Mechanisms of Magnetite Deposition in Pressurized Boiling and Non boiling Water written by Chalk River Nuclear Laboratories. System Chemistry and Corrosion and published by Chalk River, Ont. : System Chemistry and Corrosion Branch, Chalk River Laboratories. This book was released on 1994 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The effect of dispersants on the magnetite particle deposition rate in pressurized boiling and non boiling water written by C. W. Turner and published by . This book was released on 1996 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the 18th International Conference on Environmental Degradation of Materials in Nuclear Power Systems Water Reactors written by John H. Jackson and published by Springer. This book was released on 2018-12-20 with total page 2460 pages. Available in PDF, EPUB and Kindle. Book excerpt: This two-volume set represents a collection of papers presented at the 18th International Conference on Environmental Degradation of Materials in Nuclear Power Systems – Water Reactors. The purpose of this conference series is to foster an exchange of ideas about problems and their remedies in water-cooled nuclear power plants of today and the future. Contributions cover problems facing nickel-based alloys, stainless steels, pressure vessel and piping steels, zirconium alloys, and other alloys in water environments of relevance. Components covered include pressure boundary components, reactor vessels and internals, steam generators, fuel cladding, irradiated components, fuel storage containers, and balance of plant components and systems.
Download or read book Electrochemical Engineering General Session written by V. Ramani and published by The Electrochemical Society. This book was released on 2015-07-29 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Properties Of Water And Steam Proceedings Of The 11th International conference written by Miroslav Píchal and published by CRC Press. This book was released on 1990-06-01 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book forms the proceedings of the 11th International Conference of the Properties of Steam, conducted in 1989 in Czechoslovakia. The session provided an international forum for the dissemination of information on recent progress in experiment, theory and formulation of the properties of steam and aqueous systems in the power industry during the past five years. The papers reflect present knowledge of the thermophysical properties of pure ordinary and heavy water to the properties of aqueous solutions, to the power cycle chemistry, to corrosion in power plants.
Download or read book Water Chemistry of Nuclear Reactor Systems written by British Nuclear Energy Society and published by . This book was released on 1978 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Corrosion Atlas Case Studies written by Fuad Khoshnaw and published by Elsevier. This book was released on 2021-11-28 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Corrosion engineers today spend enormous amounts of time and money searching multiple detailed sources and variable industry-specific standards to locate known remedies to corrosion equipment problems. Corrosion Atlas Series is the first centralized collection of case studies containing challenges paired directly with solutions together in one location. The second release of content in the series, Corrosion Atlas Case Studies: 2021 Edition, gives engineers expedient daily corrosion solutions for common industrial equipment, no matter the industry. Providing a purely operational level view, this reference is designed as concise case studies categorized by material and includes content surrounding the phenomenon, equipment appearance supported by a color image, time of service, conditions where the corrosion occurred, cause, and suggested remedies within each case study. Additional reference listings for deeper understanding beyond the practical elements are also included. Rounding out with an introductory foundational layer of corrosion principles critical to all engineers, Corrosion Atlas Case Studies: 2021 Edition delivers the daily tool required for engineers today to solve their equipment's corrosion problems. - Solves equipment failure with easy-to-find remedies organized by essential elements such as materials, system, part, cause, environmental, and phenomenon - Grasps fundamental corrosion elements on all major industrial pieces of equipment, no matter the industry - Identify failures by appearance with color figures within each case study
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1996 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Chemical Additives on the Deposition of Magnetite Onto Alloy 800 Under Nucleate Boiling Heat Transfer written by Cyprien Gasnier and published by . This book was released on 2014 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This thesis investigates the effects of three polymeric dispersants – two types of polyacrylic acid (PAA) and sodium polymethacrylate (PMA) – and a commercial filmforming amine (FFA) on the deposition onto heated nickel alloy of particulate magnetite from suspension in water during sub-cooled boiling and bulk boiling. In bench-top experiments, ribbons of Nichrome immersed in a magnetite suspension are heated electrically with and without additives. Results show that deposits are less numerous in the presence of polymeric additive. The smaller molecular weight PAA is the most effective at preventing magnetite deposition. Complementary experiments are carried out in a recirculating loop with an electrically-heated heat-exchanger tube of Alloy-800. The tube is exposed to flowing water under chemistry conditions comparable to those used during bench-top experiments. A laser profilometer is used to measure the thickness of the deposited magnetite at the end of each run. The use of polymeric dispersant is efficient at mitigating magnetite deposition. Again, the smaller molecular weight PAA is the most effective. A numerical model is developed to assist in the interpretation of the results from the laser profilometer. Due to its agglomerating effect on magnetite, one can conclude little about the effect of FFA on magnetite deposition."--Page ii.
Download or read book INIS Atomindex written by and published by . This book was released on 1996 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book List of Publications Atomic Energy of Canada Limited written by Atomic Energy of Canada Limited and published by . This book was released on 1994 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Corrosion Atlas written by Evert D.D. During and published by Elsevier. This book was released on 2018-09-28 with total page 803 pages. Available in PDF, EPUB and Kindle. Book excerpt: Corrosion Atlas: A Collection of Illustrated Case Studies, Third Edition includes 679 case histories divided over 135 materials in 13 material groups, 25 systems (installations) and 44 different phenomena. It is an essential reference work on the design, fabrication, operation and maintenance of the extremely varied and often very complicated systems and machinery used in today's technology. Case histories, with cross-references and indexes, make this book a critical resource in the solution of many corrosion problems. In addition, it brings team members closer by presenting a common language for all parties. Finally, the book serves as an important educational aid for self-study. Because of its unique, extensive, clear and beautifully produced material, the book presents a much closer link between education and the practice of corrosion prevention and control. - Presents real life problems and describes materials, systems, parts, types, environments, causes and remedies - Helps improve accuracy and speed of corrosion analyses - Includes Information that is systematically organized for speedy look-up and ease of use - Provides superb quality of visual information that gives the clues vital for analyzing problems
Download or read book Deposition of Magnetite in High Temperature Boiler Environments written by Balaji Raman and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Suspended magnetite particles in boiler water may deposit in lower orifice headers in forced circulation boilers, impeding flow and causing inefficiencies, ultimately leading to overheating boiler tube failures. The surface charge and zeta potential developed by the suspended particles could be a driving factor in this process. To study the mechanism behind the deposition of suspended magnetite on stainless steel, laboratory-scale experiments were carried out under a range of standard boiler water chemistry, simulating fouling experienced in boiler units. A high-temperaturehigh-pressure electrophoretic deposition cell with provisions to test deposition on metal substrates has been developed. The trends in the deposition processes for the various chemistry were validated using visual observations, surface microscopy, and in situ electrochemical impedance spectroscopy (EIS). A three-electrode assembly design was developed to carry out the in situ electrochemical measurements in various boiler water environments. The experimental setup was successfully used to test boiler water chemistry at 300C (572F) and 10 MPa (1450 psi). The chemistry tested included all-volatile treatment (AVT; oxidizing and reducing using hydrazine), caustic treatment (CT), phosphate treatment (PT), and a filming amine (GE HRSG-02). In addition, the effect of particle size on the deposition process was studied. The experimental results have been explained using established principles of suspended oxide behavior in aqueous environments. The results indicated that the presence of suspended magnetite particles at a pH25C = 9.3, controlled by ammonium hydroxide, caused the particles to aggressively deposit on the stainless steel surface. On the other end of the AVT spectrum, when tested at pH25C = 9.8, no visually observable deposits were found on the surface of the steel. Operating close to the point of zero charge of magnetite at 300 C resulted in deposition and moving away from the point of zero charge mitigated deposition. In case of the caustic treatment and phosphate treatment, it was seen that the compression of the double layer due to the additional electrolytes in the system could influence the deposition process even when the pH of the system was away from the point of zero charge of magnetite at 300C. No significant influence of hydrazine was observed on the deposition of magnetite. Impedance spectroscopy was successfully used in these tests to identify in situ the cases where deposition occurred. The filming amine chemistry did not mitigate deposition completely, but the presence of the HRSG-02 affected the nature of deposits observed on the substrate. Macroscopically the substrate appeared to be covered with deposits and some darker regions. The results of the filming amine study point to possible interactions between the amine-substrate and amine-magnetite. Increasing the particle size distribution clearly showed a decrease in the deposition even though the boiler water chemistry was conducive for deposition. Although, controlling the particle size is not an option for utility boilers, these tests provide further insight into understanding deposition at high temperatures in boiler type environments. In addition to experimental results, the Derjaguin-Landau-Verwey-Overbeek (DLVO) theory has been used to model the behavior of the suspended particles under the AVT boiler water chemistry regime. The DLVO interaction energy curves and the calculated agglomeration probabilities support the experimental observations regarding the deposition of magnetite under the AVT regime. Such calculations can be extended to other treatment chemistries as well providing means to predict the behavior of suspended particles in boiler water. In summary, this study has clearly established a link between the solution chemistry at 300 C (572 F) to the deposition of magnetite on 304 SS. The results show that the zeta potential, which is influenced by the pH of the solution, could be the major factor dictating the susceptibility of deposition at these conditions. EIS was used successfully to establish that magnetite deposition results in high values (> 106 ) of the magnitude of the impedance. Although qualitative, this could provide valuable information when monitoring boilers and power plants for deposition. These results also proved the success of the experimental setup developed in this project for simulating the boiler environments of interest and for studying the deposition phenomena commonly faced in boilers. This study is a one of a kind study focusing purely on the particle attachment aspect of deposition across a wide range of boiler water treatment chemistries with the results supported by surface analyses, impedance spectroscopy and theoretical calculations.
Download or read book Steam Generator Sludge Deposition in Recirculating and Once Through Steam Generator Upper Tube Bundle and Support Plates written by Ronald L. Baker and published by . This book was released on 1992 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Boiling Water Reactor Technology Status of the Art Report Water chemistry and corrosion written by and published by . This book was released on 1962 with total page 258 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 1984 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Deposition of magnetite particles from flowing suspensions under flow boiling and single phase forced convective heat transfer written by C. W. Turner and published by . This book was released on 2000 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
