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 Titanic is an example of a ship, while, say, a Canoe is an example of a boat. The main difference between a boat and a ship is purely size. A ship is considerably larger than a boat, to the extent that a boat could actually fit on a ship.