Investigation of Polyethylene Pipeline Behavior after 30 Years of Use in Gas Distribution Network

Bachir-Bey, Taous; Belhaneche‐Bensemra, Naïma

doi:10.1007/s11665-020-05118-9

Cited by 19 publications

(12 citation statements)

References 14 publications

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“…The distance between the characteristic line B and the resistance wire C is smaller than that between normal welding. The distance between the actual characteristic line and the resistance wire can be compared with that between the normal characteristic line and the resistance wire, and the actual cold welding degree can be expressed by the reduction percentage, as shown in Equation (1).…”

Section: Defects 3# and 4#mentioning

confidence: 99%

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Effect of the ultrasonic phased array on defect detection of HDPE electro-fusion joint

Lu²,

Chen³

et al. 2023

J. Phys.: Conf. Ser.

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As a common welding method for polyethylene natural gas pipelines, electro-fusion welding has been widely used. However, defects are easy to occur in the fusion area during the welding. In this paper, high-density polyethylene (HDPE) pipes with different types of electric welding joint defects are processed, and the detection effect of the ultrasonic phased array on joint defects is explored. The results show that: Ultrasonic phased array detection technology is easy to operate and reliable. It can detect three common defects: inadequate socket, cold welding, and scratch of oxide scale. In addition, according to the inspection result chart, the defect type can be accurately judged.

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Section: Defects 3# and 4#mentioning

confidence: 99%

“…As one of the main transportation modes of natural gas, polyethylene pipeline transportation has been widely used [1][2][3] . The welding methods of high-density polyethylene (HDPE) pipes are electro-fusion welding and butt-fusion welding.…”

Section: Introductionmentioning

confidence: 99%

Effect of the ultrasonic phased array on defect detection of HDPE electro-fusion joint

Lu²,

Chen³

et al. 2023

J. Phys.: Conf. Ser.

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“…As a safe and efficient clean energy, natural gas has become an ideal fuel for urban households [1][2][3] . High-density polyethylene (HDPE) pipes are an important way to transport gas.…”

Section: Introductionmentioning

confidence: 99%

Ultrasonic phased array detection method for butt fusion welding defects of HDPE pipes

Chen

Tao

et al. 2023

J. Phys.: Conf. Ser.

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The welding joint is the weak link of the high-density polyethylene pipeline. The continuous development of ultrasonic phased array technology is expected to replace traditional non-destructive testing methods. In this paper, ultrasonic phased array technology is used to detect the defects of butt fusion welding. The results show that the ultrasonic phased array can distinguish between metallic and non-metallic inclusions, and the inclusion size can be displayed. Besides, insufficient fusion defects have no obvious defect features in the sector scan results. The types of insufficient fusion defects can be judged from the end-face line scan results.

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“…High-density polyethylene pipes are extremely used for water, gas, and sewage systems and are of yearly increased demand. Recently, PE pipes are widely used in piping water [1] and gas systems due to their superior properties of low cost, excellent mechanical and chemical properties [2][3][4], long-term resistance to environmental effects, and ease of installation as well as lower weight, high resistance to corrosion and ease of joining. Conversely, the repair and technical efforts are of high costs.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Properties of High-Density Polyethylene Pipes used in Kurdistan for Piping System of Potable Water

Hassan¹

2022

KJAR

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High-density polyethylene (HDPE) pipes are recently used in the water distribution network in Kurdistan to replace the old pipes. In this investigation, two types of HDPE pipes (namely A and B) available in the local market have been studied and their properties were compared. Mechanical properties through tensile tests have been investigated and valuable data were collected that could provide a guideline reference for the designers and end-users utilizing these pipes for water supply networks. Furthermore, the HDPE samples were analyzed by differential scanning calorimetry (DSC). Results showed that the ultimate tensile strength recorded for pipe B was greater than pipe A by 8%. Besides, both the elongation at break and strain at break for pipe A was outperformed by almost 6%. On the other hand, the tests showed that the transition from elasticity behavior to ductility behavior for pipe B occurs earlier in comparison to pipe A. It was noted from the gathered information that the two tested pipes were within the standards with variations in their characteristics.

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Investigation of Polyethylene Pipeline Behavior after 30 Years of Use in Gas Distribution Network

Cited by 19 publications

References 14 publications

Effect of the ultrasonic phased array on defect detection of HDPE electro-fusion joint

Effect of the ultrasonic phased array on defect detection of HDPE electro-fusion joint

Ultrasonic phased array detection method for butt fusion welding defects of HDPE pipes

Investigation of the Properties of High-Density Polyethylene Pipes used in Kurdistan for Piping System of Potable Water

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