PV Elite for calculating skirt foundation problems
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There is a vertical vessel with a design temperature of 450, made of material SA-387 Gr.11 CL2; an error occurred during the calculations: \"Error: Maximum Temperature Exceeded when computing compressive allowables!\\" This problem disappeared after removing the skirt; does anyone know what’s causing this?
The allowable temperature of the material for your skirt seat is lower than the design temperature, right?
It also doesn’t work to use SA-387, the same material as the cylinder body, for the skirt base (it can handle temperatures up to 500 degrees); removing the calculation for the skirt base resolves the issue.
It exceeds the maximum allowable compressive stress range. Check whether the allowable temperature for the compressive stress of the material exceeds the limit, or reduce the design temperature to see if similar problems occur
Well, thank you. I checked, and the allowable temperature for compressive stress has been exceeded. Could you please tell me how to solve this situation?
Check whether the standard values have also been exceeded; if so, this material definitely cannot be used in the skirt transition section, but it can be used in sections that are not transitions.
No compressive stress was found. According to the standards, consulting a table is required to determine the allowable compressive stress, CS-2; the maximum temperature specified in that table is 482°C (VIII-1). My model is calculated based on Viii-2; according to Table 4.4.1, the maximum temperature is 425 degrees Celsius, so calculation is not possible.