Is there a formula to calculate the lifting power of a bouyancy cylinder?
This question is about an application of Archimedes’ principle, which states that the upward buoyancy force is equal to the weight of water displaced. Since the density of water fresh is 1kg per litre, a buoyancy cylinder with a volume of 1l would produce a total uplift of 1kg-wt (9.81 N). However, the weight of the cylinder (mg) must be taken into consideration, since this acts downwards and reduces the net upward force. So there are two characteristics of the cylinder which must be considered – its volume (v) and its mass (m). If you express the volume in m^3 and mass in kg you can use the following equation to estimate lifting force (f) in Newtons – f = v*g*10^3 – mg = g(v*10^3 – m) 10^3 is the density of water in kg/m^3 If you are interested in force in kg-wt and volume in litres you can use – f = (v – m) If you equate the weight of the object to be raised to f in these equations, you will end up with a system that has neutral buoyancy – i.e. the weight to be lifted and the buoyanc
