Chemical Engineering - Fluid Mechanics - Discussion

Air vessel provide for discharge fluctuation in reciprocating pump.

Air vessel provided in a suction reciprocating comp. For a saves the pump from the danger of cavitation. & nitrogen vessel dempaner in disch. The line has smoothened the flow by avoiding pulsations.

Air vessels are used in a reciprocating pump to reduce pulsation in the discharge flow i.e. uniform discharge!

Other functions of an air vessel :

1. Reduces the possibility of separation and cavitation.

2. Allows pump to run at high speed.

3. Suction head can be increased by increasing the length of pipe below air vessel.

4. Large amount of power is saved due to low acceleration head.

5. Uniform discharge.