scholarly journals Numerical simulation of decay heat scattering out of AP1000 nuclear reactor spent fuel cask based on finite element method

2020 ◽  
Vol 24 (5 Part A) ◽  
pp. 2781-2792
Author(s):  
Shujian Tian ◽  
Guozhuang Li ◽  
Jun Liu ◽  
Haoyun Yuan ◽  
Xiaoyong Song ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Nuclear Reactor ◽  
Spent Fuel ◽  
The Finite Element Method ◽  
Neutron Shielding ◽  
Computational Dynamics ◽  
Sealing Ring ◽  
Safety Limit ◽  
Element Method

The heat transfer performance of the spent fuel transport cask is inseparably related to the safety of the whole reprocessing system. In this study, we carried out the thermal analysis on the NAC-STC transport cask for AP1000 spent fuel assembly to evaluate the thermal performance of transport cask by the finite element method software ANSYS. A computational dynamics model was developed to study the temperature distribution inside the transport cask and on the surface of the cask. The effectiveness of the numerical calculation is demonstrated by comparing with the theoretical results. The results show that transport cask can reach steady-state during transportation, and the highest temperature in the case is 328?, which is below the maximum safety limit of 400?. Besides, the temperature of the fuel element baskets, sealing ring, photon shielding layer and neutron shielding layer in the cask are all within the safety limit.

scholarly journals NUMERICAL AND ANALYTICAL MODELING OF STRESS-DEFORMED STATE OF THE METAL RING SEAL OF THE TUBING HAGER

2021 ◽  
pp. 36-45
Author(s):  
E. K. Timofeev ◽  
B. A. Zhukov ◽  
A. E. Godenko ◽  
E. Yu. Lipatov
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Analytical Method ◽  
Analytical Modeling ◽  
Metal Ring ◽  
The Finite Element Method ◽  
Sealing Ring ◽  
Ring Seal ◽  
Tubing Hanger ◽  
Element Method

The article presents a numerical and analytical modeling of the stress-strain state of a metal ring seal of a tubing hanger under installation loads, as well as under the influence of well pressure. An analytical method for calculating strength and tightness within the elastic formulation is proposed. The calculation by the finite element method was carried out in order to take into account plastic deformations, which make it possible to study the influence of the geometry of the contact zone of the sealing ring on the width of the contact pad and the magnitude of the contact pressure. Comparison of the calculation results by the analytical method and the finite element method is carried out. It is shown that the analytical method, as less labor-intensive, can be used at the initial stages of designing this type of equipment.

Simulation of tuning graphene plasmonic behaviors by ferroelectric domains for self-driven infrared photodetector applications

Nanoscale ◽  
2019 ◽  
Vol 11 (43) ◽  
pp. 20868-20875 ◽  
Author(s):  
Junxiong Guo ◽  
Yu Liu ◽  
Yuan Lin ◽  
Yu Tian ◽  
Jinxing Zhang ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Interfacial Effect ◽  
Infrared Photodetector ◽  
The Finite Element Method ◽  
Ferroelectric Domains ◽  
Element Method

We propose a graphene plasmonic infrared photodetector tuned by ferroelectric domains and investigate the interfacial effect using the finite element method.

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