Types of Horsepower
- Mechanical Horsepower (Imperial)
- Common in the automotive industry.
- 1 horsepower = 745.7 watts.
- Metric Horsepower
- Used in Europe and some other regions.
- 1 metric horsepower = 735.5 watts.
- Electrical Horsepower
- Used for electric motors.
- 1 electrical horsepower = 746 watts.
- Boiler Horsepower
- Used to rate steam boilers.
- 1 boiler horsepower = 9,810 watts.
- Hydraulic Horsepower
- Used for hydraulic systems.
- Measures the power transmitted through fluid.
Formula for Horsepower
In mechanical systems:Horsepower=Torque (lb-ft)×RPM5252\text{Horsepower} = \frac{\text{Torque (lb-ft)} \times \text{RPM}}{5252}Horsepower=5252Torque (lb-ft)×RPM
Where:
- Torque is the rotational force.
- RPM is revolutions per minute.
Applications of Horsepower
- Automobiles: Measures engine output.
- Machinery: Rates industrial machines and motors.
- Boats and Aircraft: Indicates engine performance.
