Numerical Simulation of Erosion Characteristics for Solid-Air Particles in Liquid Hydrogen Elbow Pipe

Wenqing Liang, Qining Xun, Zhiyong Shu, Fuming Lu and Hua Qian
Additional contact information
Wenqing Liang: School of Energy and Environment, Southeast University, Nanjing 210096, China
Qining Xun: Shandong Institute of Non-Metallic Materials, Jinan 250031, China
Zhiyong Shu: School of Energy and Environment, Southeast University, Nanjing 210096, China
Fuming Lu: School of Energy and Environment, Southeast University, Nanjing 210096, China
Hua Qian: School of Energy and Environment, Southeast University, Nanjing 210096, China

Sustainability, 2021, vol. 13, issue 23, 1-12

Abstract: The crystalline solid-air in the liquid hydrogen will cause erosion or friction on the elbow, which is directly related to the safety of liquid hydrogen transportation. The CFD-DPM model was used to study the erosion characteristics of solid-air to liquid hydrogen pipelines. Results show that the outer wall of the cryogenic liquid hydrogen elbow has serious erosion in the range of 60–90°, which is different from the general elbow. The erosion rate is linearly positively correlated with the mass flow of solid-air particles, and the erosion rate has a power function relationship with the liquid hydrogen flow rate. The fitted relationship curve can be used to predict the characteristics and range of the elbow erosion. The structure of the liquid hydrogen elbow also has an important influence on the solid-cavity erosion characteristics. The increase of the radius of curvature is conducive to the reduction of the maximum erosion rate, while the average erosion rate undergoes a process of increasing and then decreasing. The radius of curvature is 60 mm, which is the inflection point of the average erosion rate of the 90° elbow. The research results are expected to provide a theoretical basis for the prevention of liquid hydrogen pipeline erosion.

Keywords: liquid hydrogen; CFD-DPM; erosion rate; fitting relationship; hydrogen safety (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2071-1050/13/23/13303/pdf (application/pdf)
https://www.mdpi.com/2071-1050/13/23/13303/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:13:y:2021:i:23:p:13303-:d:692714

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().