The overall efficiency of a centrifugal pump is simply the ratio of the water (output). power to the shaft (input) power and is illustrated by the equation below. Î· = P W / P S where Î· is efficiency, P w is the water power, and P s is the shaft power.
While talking about difference between a ship and a boat, the first thing that comes to oneâs mind is their sizes. Traditionally people consider a ship as a large ocean going vessel, whereas boats are comparatively quite smaller in size.
The easiest way to tell the difference between a sea boat and a river boat is that the sea boat will either have a big pole sticking out of the deck or alternatively, if it doesn't have a pole it will have Nelson written on it somewhere! <hr width=100% size=1>.