What is horsepower and how is it calculated?
Horsepower refers to the power an engine produces. It’s calculated through the power needed to move 550 pounds one foot in one second or by the power needs to move 33,000 pounds one foot in one minute. The power is gauged by the rate it takes to do the work.
How do you calculate horsepower example?
Horsepower Formula
- Horsepower (HP) = (Torque × Speed)/5252.
- Example 1.
- Determine the horsepower of a car which moves with a speed of 600 revolutions per minute and has a torque of 100 pound-foot.
- Solution:
- HP = 1.142 hp.
- Speed = (Horsepower × 5252)/ Torque.
- Speed = 18.17 revolutions per min.
How do you calculate speed from horsepower?
Relating Horsepower to Speed You know the horsepower rating of the engine, and now you know the thrust, so you can calculate the speed the car will travel using the relationship: Speed = Power/Force. To arrive at an answer, we note that that 1 Horsepower = 550 ft.
How much power is 1 horsepower?
746 watts
The electrical equivalent of one horsepower is 746 watts in the International System of Units (SI), and the heat equivalent is 2,545 BTU (British Thermal Units) per hour. Another unit of power is the metric horsepower, which equals 4,500 kilogram-metres per minute (32,549 foot-pounds per minute), or 0.9863 horsepower.
How is motor power calculated?
By taking the voltage and multiplying it by the associated current, the power can be determined. A watt (W) is a unit of power defined as one Joule per second. For a DC source the calculation is simply the voltage times the current: W = V x A.
How do you calculate CC to horsepower?
Calculate the horsepower or CC by multiplying or dividing by 15. The general rule is for every 15 CC there is 1 HP. For example, for a 150 CC engine you would take 150 divided by 15, which equals 10 HP.
How do you measure horsepower?
Once we’re able to measure torque, we can then measure horsepower. The formula is simple: Multiply torque by the engine speed (measured in rpm), then divide that by 5,252 to get the horsepower at that rpm level. In other words, to get the horsepower of a vehicle generating 350 pounds-feet of torque at 4,000 rpm,…
What is the physics equation for horsepower?
Horsepower formula is given as Horsepower (HP) = (Torque × Speed)/5252 There is another Horsepower formula related to the weight given as This formula is applied to calculate the speed or velocity at the end of the run.
What’s better horsepower or torque?
Horsepower, on the other hand, is the rate at which work is done. Torque multiplied by rpm returns horsepower. Basically, the faster the crankshaft spins with the same amount of force, the more power an engine will make. A car with more hp than torque will always be quicker since this gives a car acceleration and speed.
How to calculate horsepower required?
Force and Work. If we hold a 10 lb. weight we are applying a 10 lb. force.
