Thermal Analysis of Spent Fuel Transportation Cask

2006 ◽  
Author(s):  
Seik Mansoor Ali ◽  
P. Goyal ◽  
Vishnu Verma ◽  
A. K. Ghosh ◽  
H. S. Kushwaha
Keyword(s):  
Finite Element Method ◽  
Thermal Analysis ◽  
Fire Test ◽  
Spent Fuel ◽  
The Finite Element Method ◽  
Thermal Test ◽  
Test Conditions ◽  
Transport Condition ◽  
Normal Transport ◽  
Transient Thermal

Spent fuel transportation casks are required to meet among others, the regulatory thermal test conditions in order to demonstrate their ability to withstand specified accidental fire conditions during transport. This paper describes the transient thermal analysis performed with the above intention for a transportation cask that has not undergone drop test and is not damaged. The original dimensions are used for computations. The analysis was carried out using a heat conduction code employing the Finite Element Method (FEM). At the outset, a benchmark exercise was carried out with the present code to ascertain its capability to carry out calculations involving phase change. The benchmarking was done against the solution given by commercial CFD code STAR CD. After assessing the suitability of the FEM code, it was employed for thermal analysis of the transportation cask. The computation covers normal transport condition, half an hour fire test at 800°C and also the post fire cool down period. The objective of the analysis was to determine the maximum outer surface temperature for normal transport conditions and to assess the extent of melting of lead during fire and post fire period.

Thermal analysis of GaN-based LEDs using the finite element method and unit temperature profile approach

2004 ◽  
Vol 241 (12) ◽  
pp. 2681-2684 ◽  
Author(s):  
Tae Hee Lee ◽  
Lan Kim ◽  
Woong Joon Hwang ◽  
C. C. Lee ◽  
Moo Whan Shin
Keyword(s):  
Finite Element Method ◽  
Thermal Analysis ◽  
Finite Element ◽  
Temperature Profile ◽  
The Finite Element Method ◽  
Profile Approach ◽  
Element Method

Non-linear thermal analysis of light concrete hollow brick walls by the finite element method and experimental validation

2006 ◽  
Vol 26 (8-9) ◽  
pp. 777-786 ◽  
Author(s):  
J.J. del Coz Díaz ◽  
P.J. García Nieto ◽  
A. Martín Rodríguez ◽  
A. Lozano Martínez-Luengas ◽  
C. Betegón Biempica
Keyword(s):  
Finite Element Method ◽  
Thermal Analysis ◽  
Finite Element ◽  
Experimental Validation ◽  
The Finite Element Method ◽  
Non Linear ◽  
Hollow Brick ◽  
Element Method

Stress Concentration Factor Calculation for the Hooks in Lifting Appliance of Spent Fuel Well Cover

2014 ◽  
Author(s):  
Xiang Liu ◽  
Yue Li ◽  
Jinhua Wang ◽  
Bin Wu
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Stress Concentration ◽  
Stress Concentration Factor ◽  
Concentration Factor ◽  
Spent Nuclear Fuel ◽  
Curved Beam ◽  
Spent Fuel ◽  
The Finite Element Method ◽  
High Temperature Reactor

The spent nuclear fuel of HTR-PM (High Temperature Reactor–Pebblebed Modules) will be dry stored in wells. In the mouth of each well, there is a cover weighing 11 tons. A lifting appliance with three hooks is used to open and close the covers. The hooks are L-shaped with fillet at the inside corner. The stress concentration at the corner has a significant impact on the strength and fatigue life of hooks. For optimizing the structure of the hook, the stress concentration factor related to the radius of fillet is calculated by both theoretical and numerical methods. The theoretical calculation is based on the Saint-Venant’s Principle and the analytical solution of a curved beam. The result is consistent with the numerical calculation performed by the finite element method.

Thermal Analysis of Concrete Structures with Pipe-Cooling System by a New Algorithm

2015 ◽  
Vol 724 ◽  
pp. 161-165
Author(s):  
You Ping Zhu ◽  
Shu Rong Feng ◽  
Qing Chun Shi ◽  
Jun An Su
Keyword(s):  
Finite Element Method ◽  
Thermal Analysis ◽  
Temperature Field ◽  
Cooling System ◽  
Concrete Structures ◽  
The Finite Element Method ◽  
Good Efficiency ◽  
Pipe Model ◽  
Calculate Temperature Field ◽  
Computing Speed

In this paper, we proposed a new algorithm to calculate the temperature field of concrete structures with pipe-cooling system. As we know, the pretreatment of pipe model is hard and the calculation will be time-consuming. However, in this algorithm, the computing information of pipes will be included in the exist nodes of elements, so the workload of pretreatment would be reduced. Meanwhile, the finite element method (FEM) format and the formula of water temperature along pipe have been established in this paper. Iteration was not required in this method, so the computing speed will be improved too. An example has shown that this algorithm can response temperature gradient near the pipe and have good efficiency to calculate temperature field of concrete structures with pipe-cooling system.

scholarly journals A Comparative Thermal Analysis of Walls Composed of Traditional and Alternative Building Materials

2020 ◽  
Vol 16 (2) ◽  
pp. 388-395
Author(s):  
Rositsa Petkova-Slipets ◽  
Krastin Yordanov ◽  
Penka Zlateva
Keyword(s):  
Finite Element Method ◽  
Thermal Analysis ◽  
Building Materials ◽  
Simulation Modelling ◽  
Thermal Calculation ◽  
Thermal Processes ◽  
The Finite Element Method ◽  
Good Convergence ◽  
Specialized Software ◽  
Different Types

AbstractThis research aims at comparing the thermal performance of walls made from traditional and alternative building materials. The experimental study involves five types of walls were studied based on perforated ceramic bricks and a mixture of clay, sand with various straw proportions. Specialized software and the finite element method (FEA) were employed for modelling of the thermal processes and their visualization for the different types of walls. A simulation modelling algorithm was developed. The models developed show very good convergence of the results and provide for subsequent design and thermal calculation of constructions made by environmentally friendly materials.

Thermal Analysis of Thin Plates Using the Finite Element Method

2010 ◽  
Author(s):  
G. K. Er ◽  
V. P. Iu ◽  
X. L. Liu ◽  
Jane W. Z. Lu ◽  
Andrew Y. T. Leung ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Thermal Analysis ◽  
Finite Element ◽  
Thin Plates ◽  
The Finite Element Method ◽  
Element Method

Numerical analysis of displacement and stress fields of off-axis composites in three-point flexure

2010 ◽  
Vol 45 (6) ◽  
pp. 671-682 ◽  
Author(s):  
J.M. Romera ◽  
I. Adarraga ◽  
M.A. Cantera ◽  
F. Mujika
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Numerical Analysis ◽  
Stress Fields ◽  
Main Difficulty ◽  
The Finite Element Method ◽  
Complete Model ◽  
Test Conditions ◽  
Lift Off ◽  
Flexure Test

Three-point flexure test for unidirectional off-axis composites has been analyzed by the finite element method. The main difficulty of modeling three-point flexure test of this kind of material is due to the bending-twisting coupling that induces the lift-off of the specimen at the fixture supports. In the present work, the contact between the load and support rollers and the specimen has been modeled with linear gap elements. The type of element and refinement of the mesh have been analyzed in order to minimize numerical error. After having selected those parameters, a complete model with discretization of load and support rollers has been developed to simulate different test conditions. The numerical displacement field has been compared with analytical and experimental results obtained previously. Furthermore, the length and location of the contact between specimen and rollers has been numerically predicted in some configurations.

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