Failure pressure analysis of hydrogen storage pipeline under low temperature and high pressure. (3rd September 2020)

• Record Type: Journal Article
• Authors: Chen, Zhanfeng; Chen, Yipeng; Wang, Wen; Lu, Keqing; Yang, He; Zhu, Weiping
• Is Part Of: International journal of hydrogen energy. Volume 45:Number 43(2020)
• Page Start: 23142
• Page End: 23150
• Publication Date: 2020-09-03
• Subjects: Burst pressure -- Corroded line pipe -- Low temperature -- DCA model -- FEM; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2020.06.129
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: Low temperature and high pressure line pipes are widely used in hydrogen storage, air separation plant, liquefied natural gas (LNG) transportation etc. The material properties of pipes at low temperature are different from those at room temperature. If the medium in the pipe is corrosive, it will cause the pipe wall thickness to decrease. However, the failure pressure of the corroded hydrogen storage pipeline at extremely low temperature is lacking of adequate understanding. In this paper, we provided a novel failure pressure equation of the mild steel line pipe with corrosion defects at extremely low temperature. Firstly, a mechanical model of the line pipe with corrosion defects is established. And then, an analytical solution of the mechanical model is obtained based on elastic theory. Next, a failure pressure equation of the corroded hydrogen storage pipeline at extremely low temperature is developed. In the end, the accuracy of the failure pressure equation is verified by comparing with finite element method (FEM). The results suggest that the calculated value of the failure pressure equation is consistent with that of FEM. This paper provides a theoretical basis for the safety assessment of low temperature hydrogen storage pipeline. The new equation presented in this paper can provide useful guidance for the design of low temperature and high pressure pipelines. Highlights: Burst pressure equation of corroded pipe at low temperature is presented. Burst pressure of corroded pipe at low temperature is calculated numerically. It is beneficial to predict burst pressure of corroded pipe at low temperature.