2015 Edition published July 1, 2015, mandatory January 1, 2016.
http://www.dir.ca.gov/dosh/documents/pressure-vessels/2015-ASME-Code-Changes.pdf
http://www.sperkoengineering.com/html/2015_addenda.pdf
DCBII,
You can design the cylindrical section as an offset nozzle attached to the existing head. Then create anther file for the cylindrical section plus the small head with design pressure adjusted for the liquid level.
Richard
Kovisten,
You need to calculate the vessel (inner shell) per Appendix 13 using internal pressure and external pressure ( jacket internal pressure + atmospheric). Then calculate the second vessel (jacket) per appendix 13 using ( jacket internal pressure ) and external pressure (atmospheric )...
