Corrosion in a buried pressurised water pipeline

The demand of energy is increasing day after day while producing clear and renewable energy is getting more important for contemporary countries because of global warming. So, any kind of project has to be considered in terms of timing, environment, safety-security and cost. Hydropower dams provide an important source of energy in many countries for a long time. However, they have several impacts on environment, sometimes on cultural history. So, it has been the greatest dilemma in engineering projects whether to preserve historical remains and fertile farm lands or to behave in favor of hydropower generation. Implementing more professional engineering approaches and practical engineering works can remove the engineering structure from being in a critical situation. Ecemiş Fault corridor in Turkey is one of these cases where a careful consideration of the problem would result in beneficial solution in both ways. There are huge landslides with several billions of cubic meters in this faultcorridor. The water-discontinuity-clay trinity (WDC) is well developed in this trough and plays a significant role in the formation of these landslides. So, a big dam project with a wide reservoir will cause a lot of geotechnical problems and also remedial works which mean time and money.This study suggests an alternative project, pressure pipeline system, instead of a large dam. The recommended system will preserve both fertile agricultural lands and historical sites and also produce more energy. The proposed system has many advantages in terms of timing, environment, safety-security and cost; and consists of small dams on the tributaries, regulators on Ecemiş stream, pipelines and power plants.

show abstract

“…Rogers [8], Symphorian [9], Srikanth [10] and Barber [11] all showed that the use of pipelines in hydroelectric projects has increased sharply.…”

Section: Ecemiş Hydroelectricity Power Plant System (Ecemiş Hpps)mentioning

confidence: 94%

Pressure pipeline system to produce hydropower: Ecemiş-Turkey

Leventeli

Yılmazer²,

Ertunç

2013

2013 International Conference on Renewable Energy Research and Applications (ICRERA)

View full text Add to dashboard Cite

show abstract

“…93 When used under CP conditions, the current densities measured by the WBE are almost completely cathodic obscuring corrosion rate evaluations by direct use of Faraday's Law. 7 Calculation method to obtain the anodic Tafel relationship of a system from its cathodic polarisation curve However, a new data analysis method has been recently developed to estimate corrosion rates and distributions based on the different current magnitudes measured by each electrode under CP. 94 A major limitation associated with current electrochemical methods found in the literature is that the metallic surface is directly exposed to the environment not beneath a disbonded coating.…”

Section: Multi-electrode Arraysmentioning

confidence: 99%

An overview of major methods for inspecting and monitoring external corrosion of on-shore transportation pipelines

Varela

Tan

Forsyth

2015

Corrosion Engineering, Science and Technology

View full text Add to dashboard Cite

Corrosion can occur on underground pipelines especially at coating defects, where metal can be considered directly exposed to the soil, or under disbonded coatings, where the occluded geometry significantly affects the efficiency of cathodic protection (CP). In order to ensure the effectiveness of corrosion mitigation measures such as CP and protective coatings, inspection and monitoring of pipeline corrosion are required. This paper provides an overview of major methods that are used for inspecting and monitoring external corrosion of on-shore pipelines subjected to CP. Particular focus is on discussing the advantages and limitations of major inspection tools that are used to ensure pipeline integrity, and electrochemical corrosion sensors that are designed to monitor pipeline corrosion processes and rates. It is shown that there is a need for expanding the capabilities of corrosion monitoring methods suitable for the pipeline industry.

show abstract

“…Most of the case studies of deterioration of water supply networks deal with metallic materials and failures due to mechanical stress [1], stray currents [9], internal tuberculation, and pitting corrosion problems [7,8]. Reports of pipeline bursts indicate that corrosion and graphitization account for about half of events; in addition, problems associated with pipeline settlement are an important source of mechanical failure [4] and deposit formation at the interior of the pipeline may drastically reduce hydraulic capacity of the system [10].…”

Section: Introductionmentioning

confidence: 98%

“…Complementary contributors include soil classification, soil-structure potential, redox potential, and microbiological analysis. Visual inspection of the metallic surface, characterization of the pitting attack, and metallurgical analysis are also required to complete the data necessary to establish a data driven, pipeline maintenance program [8,9]. Inspection and control programs can be classified as reactive or proactive techniques.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Current Condition and Lifespan of Drinking Water Pipelines

Restrepo

Delgado

Echeverría

2009

J Fail. Anal. and Preven.

View full text Add to dashboard Cite

The condition of underground water pipelines was assessed, and a large amount of data for both the soil and the corresponding pipeline section were collected. Statistical techniques were employed first to establish the sampling design and later for the data analysis and obtaining a mathematical expression for pitting depth as a function of several experimental variables. The data were used to evaluate corrosivity, current condition and lifespan of the pipeline under study and present the results graphically in the form of maps. The approaches and techniques employed here provide a useful tool for structuring maintenance programs.

show abstract

Corrosion in a buried pressurised water pipeline

Cited by 29 publications

References 1 publication

Pressure pipeline system to produce hydropower: Ecemiş-Turkey

Pressure pipeline system to produce hydropower: Ecemiş-Turkey

An overview of major methods for inspecting and monitoring external corrosion of on-shore transportation pipelines

Evaluation of Current Condition and Lifespan of Drinking Water Pipelines

Contact Info

Product

Resources

About

Corrosion in a buried pressurised water pipeline

Cited by 29 publications

References 1 publication

Pressure pipeline system to produce hydropower: Ecemi&#x015F;-Turkey

Pressure pipeline system to produce hydropower: Ecemi&#x015F;-Turkey

An overview of major methods for inspecting and monitoring external corrosion of on-shore transportation pipelines

Evaluation of Current Condition and Lifespan of Drinking Water Pipelines

Contact Info

Product

Resources

About

Pressure pipeline system to produce hydropower: Ecemiş-Turkey

Pressure pipeline system to produce hydropower: Ecemiş-Turkey