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Investigation of Polyethylene Pipeline Behavior after 30 Years of Use in Gas Distribution Network
Journal of Materials Engineering and Performance ( IF 2.3 ) Pub Date : 2020-09-15 , DOI: 10.1007/s11665-020-05118-9
Taous Bachir-Bey , Naima Belhaneche-Bensemra

Polyethylene (PE) gas pipes are introduced in Algeria in 1978 to substitute the old pipelines made by copper, steel and cast iron. These later were used for the distribution of natural gas with medium working pressure of four bars. In this study, the polyethylene pipes were extracted from the Algerian distribution gas network in order to study their characteristics after more than 30 years of use. Two different pipe diameters (Ø63 and Ø125) with different ages of use were characterized according to the specifications on the EN1555-2 standard. The dimensional, physical and mechanical tests were performed with the same parameters as a newly produced pipe. The results showed that most of the characteristics are still fitting the EN 1555-2 specifications except for the density and the oxidative induction time. These two later will be considered as two basic parameters for the future studies of the polyethylene aging.



中文翻译:

气体分配网络使用30年后聚乙烯管道行为的调查

聚乙烯(PE)燃气管道于1978年在阿尔及利亚引入,以替代由铜,钢和铸铁制成的旧管道。这些后来被用于以四巴的中等工作压力分配天然气。在这项研究中,聚乙烯管道是从阿尔及利亚的分布气体网络中提取出来的,目的是研究使用30多年后的聚乙烯管道的特性。根据EN1555-2标准的规范,对两种具有不同使用年龄的不同直径的管道(Ø63和Ø125)进行了表征。使用与新生产的管道相同的参数进行尺寸,物理和机械测试。结果表明,除了密度和氧化诱导时间外,大多数特性仍符合EN 1555-2规范。

更新日期:2020-09-16
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