Why spherical tank is nessesary to store liquid NH3?

Question

in industrial ammonia production spherical stroe used why?

Answer 1

The liquid, as it warms up, trys to gassify, putting enormous pressure on the tank its in. A spherical shape is the best shape to resist a non direction pressure force.

Answer 2

For a given volume, a sphere requires the least material. That is the primary reason for any spherical tank. As the design pressure goes up, the vessel wall thickness gets thicker and the cost of materials goes up. This can make spherical tanks more desirable.

Spherical tanks have been used for many liquids.

By the way: the vapor pressure of ammonia is very similar to propane and freon. It is 211 psia at 100 degrees F. Commercial propane has a vapor pressure of about 210 psia at 100 degrees.

Answer 3

in spite of the actual undeniable reality that propane is likewise saved in cylindrical tanks, the biggest commercial tanks are frequently round because a sphere includes the most volume for a given floor section, minimizing the metallic required to carry a given volume. round tanks might want to be fairly supported both in round concrete dishes or by employing helping the container at its equator (Horton spheres). because cylindrical tanks have round ends, there's no capacity income to a cylindrical tank of equivalent thickness.

Answer 4

For a given volume, a sphere has the smallest surface area and thus the smallest total force exerted on it.


Doug

Answer 5

Like #1 said amonias under pressure becomes liquid usually around 2500psi

Answer 6

Spheres are much stronger than other shapes with angular corners and stress points.