Evaluation Charts of Thermal Stresses in Cylindrical Vessels Induced by Thermal Stratification of Contained Fluid

Journal of Computational Science and Technology

Ichiro FURUHASHI¹  Nobuchika KAWASAKI²  Naoto KASAHARA² 

[1] ITOCYU Techno-Solutions Corporation;Advanced Nuclear System Research and Development Directrate, Japan Atomic Energy Agency

关键词: Thermal Stress;    Cylindrical Vessel;    Thermal Stratification;    Heat Transfer;    Temperature Profile Method;    Shell Theory;    Stress Chart;    Structural Design;   

DOI  :  10.1299/jcst.2.547

学科分类：地球科学(综合)

来源: Japan Academy

【 摘 要 】

References(7)Cited-By(4)Temperature and thermal stress in cylindrical vessels were analysed for the thermal stratification of contained fluid. Two kinds of temperature analysis results were obtained such as the exact temperature solution of eigenfunction series and the simple approximate one by the temperature profile method. Furthermore, thermal stress shell solutions were obtained for the simple approximate temperatures. Through comparison with FEM analyses, these solutions were proved to be adequate. The simple temperature solution is described by one parameter that is the temperature decay coefficient. The thermal stress shell solutions are described by two parameters. One is the ratio between the temperature decay coefficient and the load decay coefficient. Another is the nondimensional width of stratification. These solutions are so described by few parameters that those are suitable for the simplified thermal stress evaluation charts. These charts enable quick and accurate thermal stress evaluations of cylindrical vessel of this problem compared with conventional methods.

【 授权许可】

Unknown