They are vertical "tanks" and filled with a "water-like" fluid. What I have calculated is for the fire case, so assuming the air is around 320C (608F).
I have just found thermal conductivities for 316 SS but not necessarily on a tank from the web. Perry's has thermal conductivities for heat exchangers, not tanks. We are just assuming it is a water-like fluid in these tanks.
I'm trying to compare an overall heat transfer coefficient I have calculated for a SS vessel, based on various assumptions. Does anyone know what the heat transfer coefficient or thermal conductivity of a bare 316ss vessel is? Thanks.