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As shown in the diagram, regarding the design of pressure vessels at normal pressure, the design pressure required for calculating the wall thickness of the cylinder – I understand this to be the force exerted on the cylinder wall once it is filled with the medium. How can this value be determined? For example, if a 2.5-meter tank is filled with 10 cubic meters of water, what should be the pressure on the walls of the tank?
It’s the static pressure of the liquid column, right, ρgh, assuming that the space above is at atmospheric pressure. However, for small containers, due to their low height, the static pressure of the liquid column is also low; in addition to taking this into account, overall rigidity must also be considered.
Water has low compressibility; it’s impossible to fill a 2.5-meter tank with 10 cubic meters of water no matter what.
A tank with a 2.5-diameter should be a little over two meters in height…………
Honey~! What I’m trying to find is the pressure acting on the wall of the cylinder… not the bottom. How do I calculate the pressure on the cylinder wall? I want to know the thickness of the cylinder’s wall, not the thickness of its bottom.
Don’t the bottom wall panels also be subjected to the static pressure of the liquid column? You surely consider the wall panels based on the maximum stress levels. If the tank is tall enough, it’s possible to take into account the pressure at different heights; in such a case, with a height this great, just using two layers of panels will suffice, and there’s no need to vary the thickness.
Okay, I get it! Thank you!