Description: smallest total energy height at the outlet side of the pump aggregate to the total energy height of the admission side of the pump aggregate at operating point; Name: smallest allowable head
Description: Minimum permissible head at which the pump can be operated without suffering damage; Name: Minimum allowable head
Description: determined integral of the sound power, p, over a stated time interval of duration t (starting at t1 and ending at t2); Name: sound energy