This may be more appropriate for the piping section since it refers to CAESAR rather than TANK, but it relates to API 650.
I am using CAESAR II to analyze the piping from two API 650 storage tanks. The tanks are 80 and 60 feet in diameter and the nozzles and pipe are 6".
I used the API 650 nozzle option in CAESER for my nozzle node but when I looked at 650 Appendix P it said that the practice was only recommended for tanks 120' in diameter and larger. Is there an alternative calculation that is more appropriate for my case?
If not, how valid is the calculation and can I take credit for the reinforcment pad thickness by adding it to my shell thickness? I did not notice any mention of using the reinforcement pad thickness in Appendix P but the example problem notes that the reinforcement for the nozzle is in the nozzle neck-- implying that you can take credit for it in general. This was doubly confusing given that it is a 24" nozzle and the begining of Appendix P says that nozzles should meet the requirements of Table 3-6, which calls for reinforcement pads on nozzles over 2".
Anyway, thanks for your help.
Kind Regards,
charles