Question: 

When using ASME ND 1980+summer addenda, section ND-3652.3 Thermal Expansion requirements must be met by Equation 10, or 12. If equation 10 fails, then equation 12 should be applied. However, it doesn’t seem like the results are checking for Eq. 12. Can you please provide guidance on how to resolve this?

Answer:

Anyone who is familiar with AutoPIPE's reports know that when there is an asterisk, strange nomenclature besides expected values, or such that they need to investigate the entire report to see exactly the meaning.

 

In the image above the asterisk indicates to the user "see the bottom of the report for more information". At the bottom of the page/report section should be add information 

Example: 

This piece of information clearly aids in comprehending the data presented above. For those who may not be informed, ASME has renumbered the code equations in later years. To maintain consistency in programming, the development team has renumbered all equations for the code years rather than just for individual years. While this may cause some confusion for users referring to older code years, it should be a smooth transition already familiar with the newer codes. To verify precisely what the equations are being evaluated, please review the code equations referenced in the AutoPIPE help.

In this instance, referring to ASME ND 1980+ summer addenda, section ND-3652.3, equation 12 assesses paragraph "(c) the effects of pressure, weight, other sustained loads, and thermal expansion shall be meet". AutoPIPE help Equation 11 is identical to that presented in the code.