Some of you might be wondering what the differences are between shaft horsepower and horsepower. We will go over what makes up each one and the differences between them. We will also cover the way that both of these are traditionally measured and how much easier it is now with a new shaft power calculator.
Shaft horsepower is a term used when referring to the power output that comes from an engine after it has endured through the gear train and other additional components where the outcome is a loss of power. You will mostly see this utilized and referred to when dealing with ships and aeroplanes. Sometimes it can also be used to refer to the output of power coming from a car’s gearbox as well.
When the term brake horsepower is used, it refers to the power an engine is able to put out and is not subject to loss. It is always higher when compared to true horsepower no matter what the circumstances may be. True horsepower or sometimes, as you might know, it is also referred to as rear wheel horsepower. Both of these terms refer to the power accountable for the forward movement of a vehicle while being driven.
To know how much horsepower you have, you have to look for the power that is produced on the cylinder, the expansions of gas and how the heat loss is annihilated. As well as any friction and entropy that might occur inside the system. To get an accurate measurement, the power is calculated from the pressure that is enforced within the cylinder. The object that is used to measure this power is called an engine indicator.
Shaft horsepower is named as such because the power that is accessible is at the propeller shaft itself. This is how it got the name break horsepower because it is actually measured through a break. Because of the diverse and many friction losses that occur in this process, only a small amount of indicated power is available at the shaft. Some of the friction losses that occur in the shaft include top bearing, crosshead and piston rings.
The way break horsepower is measured is by placing resistance torque on the shaft as a break, then taking the heat that is generated by the friction is then discharged by circulating water. Just like when you are measuring anything else, break horsepower has a certain formula
Bp=2пNRF.
The NFR refers to N meaning the revolution of the engine per second, F meaning the break or resistance force and the R meaning the radius of the force that is applied. Just like break horsepower, the torque of engine shaft is also measured. It is measured by using an instrument called a torsion meter and the formula for measuring shaft horsepower is
Sp = 2пNT
The T in this formula refers to the torque that is measured by the torsion meter and the N refers to the revolution of the engine per second.
To make this a whole lot easier and simpler, most people are now using the new shaft power calculator. Not only does this make the process a lot faster, but you have a higher percentage of more reliable and efficient results. You can easily find great shaft power calculators in selected stores or you can do a quick search online to find out more.
