A Residual Lifetime Prediction Method of Aging Polyethylene Gas Pipes in Service

doi:10.1115/pvp2019-93140

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	A Residual Lifetime Prediction Method of Aging Polyethylene Gas Pipes in Service
	Wang, Yang 1,2; Lan, Hui-Qing 1; Zhang, Hao 1
	2019-11-15
会议日期	July 14, 2019 - July 19, 2019
会议地点	San Antonio, TX, United states
卷号	6A-2019
DOI	10.1115/pvp2019-93140
页码	pvp2019-93140
国家	United states
英文摘要	Polyethylene pipes (PE) have been widely used for various urban gas pipeline transportation engineering. With the increase of service life, the aging of PE pipes has become a safety issue of urban gas pipeline transportation. Therefore, a practical prediction method for predicting the residual lifetime of in-service aging polyethylene pipe is needed. Hitherto, there are a few reports on the aging performance and lifetime prediction of PE pipes under the laboratory research stage, but there are few researches on lifetime prediction methods of in-service aging polyethylene pipes. In this paper, aging PE pipes under different pressures and temperatures were produced by an accelerated aging test which was used by a thermal oxygen aging experimental set-ups PE pipes. Aging PE pipes were respectively tested by a tensile test, DSC and MFR (Melt Mass Flow Rate), and the test’s results of aging PE pipes were analyzed comparatively. Then, a residual lifetime prediction equation of pressured gas PE pipes was proposed by Arrhenius fit of the data which comes from the test’s results. Basing on this equation, a residual lifetime prediction method of aging polyethylene gas pipes in service was proposed, that is, the DSC test data of the particle (about 15 mg) which is cut from the surface of the in-service polyethylene gas pipes can be substituted into the lifetime prediction equation to predict the residual lifetime of aging polyethylene pipes. This residual lifetime prediction method is not only suitable for pressured aging polyethylene gas pipes in service, but also for other pressured plastic pipes in service.
产权排序	2
会议录	ASME 2019 Pressure Vessels & Piping Conference
会议录出版者	American Society of Mechanical Engineers (ASME), United States
语种	英语
URL标识	查看原文
ISSN号	0277-027X
ISBN号	978-0-7918-5897-4
内容类型	会议论文
源URL	[http://ir.xao.ac.cn/handle/45760611-7/3915]
专题	微波接收机技术实验室
通讯作者	Lan, Hui-Qing
作者单位	1.Laboratory of Vehicle Advanced Manufacturing, Beijing Jiaotong University Beijing, Measuring and Control Technology (Ministry of Education), China; 2.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi, China
推荐引用方式 GB/T 7714	Wang, Yang,Lan, Hui-Qing,Zhang, Hao. A Residual Lifetime Prediction Method of Aging Polyethylene Gas Pipes in Service[C]. 见:. San Antonio, TX, United states. July 14, 2019 - July 19, 2019.