What is HP[horse power] 1Hp =? ...
Horsepower is defined as work done over time. The exact definition of one horsepower is 33,000 lb.ft./minute. Put another opening, if you were to erect 33,000 pounds one foot over a period of one minute, you would enjoy been working at the rate of one horsepower. In this valise, you'd have expended one horsepower-minute of dash.
Even more interesting is how the definition came to be. It be originated by James Watt, (1736-1819) the inventor of the steam engine and the man whose cross has be immortalized by the definition of Watt as a part of power. The next time you complain nearly the landlord using solely 20 watt light bulbs contained by the hall, you are honoring one and the same man.
To help flog his steam engines, Watt needed a way of rating their capability. The engines were replacing horses, the usual source of industrial power of the time. The typical horse, attached to a mill that grinded corn or cut wood, walked a 24 foot diameter (about 75.4 foot circumference) circle. Watt calculated that the horse pulled with a force of 180 pounds, although how he come up with the digit is not known. Watt observed that a horse typically made 144 trips around the circle surrounded by an hour, or about 2.4 per minute. This expected that the horse traveled at a speed of 180.96 feet per minute. Watt rounded bad the speed to 181 feet per minute and multiplied that by the 180 pounds of force the horse pulled (181 x 180) and come up with 32,580 ft.-lbs./minute. That be rounded off to 33,000 ft.-lbs./minute, the integer we use today.
horsepower [hawrs-pou-er]
¨Cnoun 1. a foot-pound-second unit of power, equivalent to 550 foot-pounds per second, or 745.7 watts.
Answers: Its a way of measure the output power of an engine.
The following definitions own been widely used:
Mechanical horsepower ¡Ô 33,000 ft¡¤lbf/min
= 550 ft¡¤lbf/s
= 745.69987158227022 W (exactly)
Metric horsepower ¡Ô 75 kgf¡¤m/s
= 735.49875 W (exactly)
Electrical horsepower ¡Ô746 W
Boiler horsepower ¡Ô 33,475 Btu/h
=9809.5 W
Hydraulic horsepower merely power-driven horsepower; can be calculated by multiplying the specific units of US gal/min times pressure contained by psi (lbf/in^2) then dividing by 1714
Additionally, the residence "horsepower" has be applied to calculated (estimated rather than measured) metrics:
* RAC horsepower is base solely on the dimensions of a piston engine (1 liter of engine displacement is equal to 10 RAC horsepower)
work over a period of time