A Study on Dimensional Parameters of Shell-to-Bottom Weld Area in Molten Salt Storage Tanks

DOI

10.2991/978-94-6463-556-0_7How to use a DOI?

Keywords

Molten salt storage tank; Finite element analysis; Thermal coupling; Stress field; Shell-to-Bottom Weld; Parameter Study

Abstract

The molten salt storage tank is a key component of the solar thermal power plant’s energy storage system. In the structure of the tank, the region with shell-to-bottom weld is a weak area that affects the safe operation of the tank. This study focuses on the design of a storage tank in a solar thermal project in Qinghai Province, and uses the ABAQUS finite element thermal-stress coupling analysis method to investigate the influence of the first layer tank wall thickness, edge plate extension length, and edge plate thickness in the region of shell-to-bottom weld. The aim is to provide reference for the design of future molten salt storage tanks. The research results indicate that increasing the thickness of the tank wall and bottom plate are both beneficial for reducing the peak stress in the region of shell-to-bottom weld. The extension length of the edge plate has a significant impact on the stress in the bottom plate. When the extension length is too small or too large, it leads to uneven distribution of peak stress in the bottom plate. When the extension length exceeds 200mm, it no longer has a significant impact on the stress in the bottom plate, the peak stress in the region of shell-to-bottom weld, and the deformation of the bottom plate.

Copyright

© 2024 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Yiming Xue
AU  - Qipeng Song
AU  - Wei Zhao
AU  - Yingchun Wang
AU  - Dengyun Zhao
AU  - Kang Chen
PY  - 2024
DA  - 2024/10/29
TI  - A Study on Dimensional Parameters of Shell-to-Bottom Weld Area in Molten Salt Storage Tanks
BT  - Proceedings of the 2024 6th International Conference on Structural Seismic and Civil Engineering Research (ICSSCER 2024)
PB  - Atlantis Press
SP  - 51
EP  - 64
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-556-0_7
DO  - 10.2991/978-94-6463-556-0_7
ID  - Xue2024
ER  -