How does Caesar II address the thermal arching problem in low-temperature pipelines in stress analysis?

To address the thermal arching problem in low-temperature pipelines in CAESAR II, analysis and calculation are primarily carried out through the following steps: 1. Define the material: First, define the material properties of the pipeline in CAESAR II, including parameters such as the elastic modulus and Poisson’s ratio of the material. These parameters affect the results of the thermal arch analysis, so it is necessary to ensure they are entered correctly. 2. Enter temperature information: Enter the operating temperature of the pipeline and the ambient temperature in CAESAR II. For low-temperature pipelines, the operating temperature is generally much lower than the ambient temperature; therefore, the thermal arch effect becomes particularly pronounced. 3. Enter pipeline geometric information: Enter the geometric details of the pipeline based on actual conditions, including pipeline length, bending radius, support locations, etc. This information affects the thermal arch deformation of the pipeline. 4. Set boundary conditions: Define the boundary conditions of the pipeline in CAESAR II, including anchors, guides, supports, etc. These boundary conditions restrict the movement of the pipe, thereby affecting the thermal arch effect. 5. Perform loading analysis: CAESAR II can conduct simultaneous loading analysis of operating temperature, ambient temperature, and mechanical load. Through analysis, the stress, displacement, and thermal arch deformation of the pipeline under different temperature conditions can be obtained. 6. Inspection results: Examine the analysis results to determine whether the piping system meets the requirements of relevant design specifications. If the results do not meet the requirements, the pipeline design needs to be adjusted, such as by adding supports or changing the location of the anchors. 7. Iterative optimization: Perform iterative optimization based on the inspection results, making adjustments to the design until it meets the design specifications. By following the above steps, the thermal arch problem in low-temperature pipelines can be resolved in CAESAR II. It should be noted that thermal arch analysis involves various factors; therefore, in practical applications, it is necessary to take all these factors into consideration to ensure the accuracy of the analysis results. .

Enter the temperature difference of the pipeline in the settings, and then calculate. Then the thermal supply effect of the pipeline can be considered.

Hello, may I ask how the temperature difference between the upper and lower parts of the pipeline is taken into account?