Spherical Pressure Vessels:While being able to withstand more external pressure than its alternatives, spherical pressure vessels are somehow less efficient and therefore only have a limited area of use. However, it requires a lesser wall thickness then the cylindrical vessels. It is mainly used as a design for mini-submarines.
Stresses in Pressure Vessels - Mercer UniversitySpherical Pressure Vessel Considering a free-body diagram of one half of the sphere, force equilibrium (F=0) requires that + = 0 F=0 = Thin Walled Vessels (spherical) If the ratio of the inside radius to the wall thickness is greater than 10:1 (r i/t 10) , it can be shown that
A great benefit of spherical pressure vessels is that they possess a smaller surface area for every unit of volume, as compared to any other shape. This means that the amount of heat transferred to liquid within the sphere from warmer surroundings will be a lot less as