The Slope Parameter Approach To Marine Cathodic Protection Design And Its Application To Impressed Current Systems
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| Author | : Harvey P. Hack |
| Publisher | : ASTM International |
| Total Pages | : 119 |
| Release | : 1999 |
| Genre | : Corrosion and anti-corrosives |
| ISBN | : 0803126239 |
Seven papers summarize the main design philosophies for cathodic protection systems to protect structures and ships from the corrosive effects of seawater. The topics include the slope parameter approach and its application to impressed current systems, the relationship of chemical components and im
| Author | : WH. Hartt |
| Publisher | : |
| Total Pages | : 16 |
| Release | : 1999 |
| Genre | : Cathodic protection |
| ISBN | : |
The recently developed slope parameter approach to design of galvanic anode cathodic protection (cp) systems for marine structures constitutes an advancement in this technology compared to current practice, primarily because the former is first principles based and the latter is an empirical algorithm. In this paper, the slope parameter approach is reviewed; and related applications for which it can be utilized, including 1) design of new and retrofit cp systems, 2) evaluation of potential survey data, and 3) cp system design for complex geometries, are mentioned. The design current density is identified as the single remaining parameter for which values must be projected solely by experience or experimentation. In addition, the slope parameter approach is applied to the results of impressed current cp experiments, and it is shown how parameters for this can be interrelated with those of galvanic anode cp. Advantages of this capability are identified and discussed.
| Author | : |
| Publisher | : |
| Total Pages | : 554 |
| Release | : 1999 |
| Genre | : Deep diving |
| ISBN | : |
| Author | : Chris Googan |
| Publisher | : CRC Press |
| Total Pages | : 561 |
| Release | : 2022-02-23 |
| Genre | : Technology & Engineering |
| ISBN | : 1000536491 |
Cathodic protection (CP) mitigates the high cost of steel and other alloys corroded in seawater and seabed sediments. Marine Corrosion and Cathodic Protection is a comprehensive guide to corrosion issues and presents methodologies to tackle common offshore code-based CP designs. Advanced theory is developed for non-routine CP applications, with and without subsea coating systems. The interactions between CP and the fatigue and hydrogen embrittlement characteristics of alloys are explained. Sacrificial (or galvanic) anodes and impressed current systems are examined, followed by descriptions of successful and unsuccessful applications on petroleum installations, harbours, jetties, pipelines, windfarm foundations, ships and floating production storage and offloading vessels FPSOs. Retrofit CP systems for the life extension of assets, together with methods for applying CP internally in both static and flowing systems are evaluated. A critical review of the role of physical and computational modelling in CP design and evaluation addresses the more geometrically complex applications. Techniques for, and limitation of, CP surveying, inspection and monitoring are explained in the context of system management. This text is ideal for engineers, designers, manufacturers, equipment suppliers and operators of offshore CP systems.
| Author | : Mahmood Aliofkhazraei |
| Publisher | : Springer |
| Total Pages | : 0 |
| Release | : 2017-01-30 |
| Genre | : Science |
| ISBN | : 9783319089119 |
This handbook discusses and reviews the most recent trends in cathodic protection of metallic structures such as pipelines and buried tanks, widely used in many strategic industries such as petroleum, petrochemical, chemical applications. It contains very important practical points about designing, calculations, installation, performance, maintenance and troubleshooting of the cathodic protection systems. In sections 1 and 2, metals corrosion and processes and corrosion electrochemical theories and cathodic protection of the materials are discussed. Section 3 examines cathodic protection criteria, unpleasant consequences of cathodic protection under and above allowable levels. In section 4, field measurements and evaluations of cathodic protection as well as cathodic protection design are explored. Section 5 addresses necessary precautionary actions in cathodic protection with special emphasis on the interfering cases and their controlling techniques. In section 6, after study of cathodic protection through applying electricity (impressed) current, designing principles, calculations, installation and properties of all materials utilized in the technique are assessed. Section 7 discusses cathodic protection through sacrificial anodes, designing principles, calculations, installation, performance, and properties of all consumed materials. Section 8 introduces illustrated practical samples for cathodic protection of the structures. Section 9 addresses some challenges and problems associated with the design of cathodic protection systems and the possible approaches for solving and then analyzing them. Section 10 focuses on the practical techniques for installation and execution of cathodic protection systems. Section 11 contains very important recommendations and advices about inspections and precise adjustment of cathodic protection systems. Section 12 is allocated to practical and principal approaches for maintaining and monitoring of the cathodic protection systems. The authors of this book will provide a list of the most advanced remarks and approaches for the development of cathodic protection science in a practical and applicable manner for serving many strategic industries such as petroleum and petrochemical. It is an important source for corrosion scientists and engineers.
| Author | : |
| Publisher | : |
| Total Pages | : 802 |
| Release | : 2000 |
| Genre | : Marine resources |
| ISBN | : |
| Author | : Andreas Momber |
| Publisher | : Academic Press |
| Total Pages | : 756 |
| Release | : 2024-04-07 |
| Genre | : Technology & Engineering |
| ISBN | : 0323857450 |
Corrosion and Corrosion Protection of Wind Power Structures in Marine Environments: Volume 2: Corrosion Protection Measures offers the first comprehensive review on corrosion and corrosion protection of offshore wind power structures. The book extensively discusses corrosion phenomena and corrosion types in different marine corrosion zones, including the modeling of corrosion processes and interactions between corrosion and structural stability. The book addresses important design issues, namely materials selection relevant to their performance in marine environments, corrosion allowance, and constructive design. Active and passive corrosion protection measures are emphasized, with special sections on cathodic corrosion protection and the use of protective coatings. Seawater related issues associated with cathodic protection, such as calcareous deposit formation, hydrogen formation, and fouling, are discussed. With respect to protective coatings, the book considers, for the first time, complete loading scenarios, including corrosive loads, mechanical loads, and special loads, and covers a wide range of coating materials. Problems associated with fouling and bacterial-induced corrosion are extensively reviewed. The book closes with a chapter on recent developments in maintenance strategies, inspection techniques, and repair technologies. The book will be of special interest to materials scientists, materials developers, corrosion engineers, maintenance engineers, civil engineers, steel work designers, mechanical engineers, marine engineers, chemists, and coating specialists. Offshore wind power is an emerging renewable technology and a key factor for a cleaner environment. Offshore wind power structures are situated in a demanding and challenging marine environment. The structures are loaded in a complex way, including mechanical loads and corrosive loads. Corrosion is one of the major limiting factors to the reliability and performance of the technology. Maintenance and repair of corrosion protection systems are particularly laborious and costly. Explores the literature between 1950 and 2020 and contains over 2000 references Offers the most complete monograph on the issue Covers all aspects of corrosion protection in detail, including coatings, cathodic protection, corrosion allowance, constructive design, as well as maintenance and repair Delivers the most complete review on corrosion of metals in marine/offshore environments Focuses on all aspects of offshore wind power structures, namely foundations, towers, internal sections, connection flanges, and transformation platforms
| Author | : J. Paul Guyer, P.E., R.A. |
| Publisher | : Guyer Partners |
| Total Pages | : 83 |
| Release | : 2018-01-24 |
| Genre | : Technology & Engineering |
| ISBN | : |
Introductory technical guidance for electrical engineers and other professional engineers and construction managers interested in corrosion protection systems. Here is what is discussed: 1. INTRODUCTION 2. DETERMINATION OF CIRCUIT RESISTANCE 3. DETERMINATION OF POWER SUPPLY REQUIREMENTS 4. SELECTION OF POWER SUPPLY TYPE 5. RECTIFIER SELECTION 6. ANODES FOR IMPRESSED CURRENT SYSTEMS 7. OTHER SYSTEM COMPONENTS.
| Author | : Adedayo Christianah Olowe |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 2013 |
| Genre | : Offshore structures |
| ISBN | : |
Carbon steel finds much application for use in industries including civil; manufacturing; oil and gas; as well as, renewable energy. Common examples for usage of steel include water pipelines; oil pipelines; bridges; etc. The main advantages of steel over other engineering materials are its strength and affordability. However, steel undergoes corrosion which is a degradation mechanism that occurs as a result of the electrochemical interaction between steel and its environment. There are two main options to control corrosion, aside from material selection techniques, namely, the use of protective coating systems to isolate the steel from the environment; or the use of cathodic protection. Cathodic protection involves the use of galvanic anodes or impressed current system to prevent steel corrosion. Currently the oil and gas industry accounts for the major share of consumption of galvanic anodes for the protection of steel in engineering applications. Recent incursions into deep water depths by the Oil and Gas industry in the last decade or so has brought to the fore the need to understand better the performance of steel at deep and ultra deep water depths; as well as to develop an understanding of how cathodic protection works at these water depths. So far, the bulk of industry experience lies in shallow waters and current international cathodic protection design guidelines are based on data collated at these shallow water depths. It is the objective of this research work to assess the corrosion properties of steel with deep seawater parameters and determine design current density requirements for effective cathodic protection of steel at deep and ultra deep water depths offshore.
| Author | : J. Paul Guyer, P.E., R.A. |
| Publisher | : Guyer Partners |
| Total Pages | : 110 |
| Release | : 2021-06-19 |
| Genre | : Technology & Engineering |
| ISBN | : |
Introductory technical guidance for civil engineers, mechanical engineers, electrical engineers and construction managers interested in sacrificial anode and impressed current systems of cathodic protection to control corrosion. Here is what is discussed: 1. SACRIFICIAL ANODE CATHODIC PROTECTION 2. IMPRESSED CURRENT CATHODIC PROTECTION.
