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DIN 66036 defines one metric horsepower (Pferdestärke, or PS) as the power to raise a mass of 75 kilograms against the Earth's gravitational force over a distance of one metre in one second: [17] 75 kg × 9.80665 m/s 2 × 1 m / 1 s = 75 kgf⋅m/s = 1 PS. This is equivalent to 735.49875 W, or 98.6% of an imperial horsepower.
One metric horsepower is needed to lift 75 kilograms by 1 metre in 1 second. Power in mechanical systems is the combination of forces and movement. In particular, power is the product of a force on an object and the object's velocity, or the product of a torque on a shaft and the shaft's angular velocity.
Engine power is the power that an engine can develop. It can be expressed in power units, most commonly kilowatt, pferdestärke (metric horsepower), or horsepower.In terms of internal combustion engines, the engine power usually describes the rated power, which is a power output that the engine can maintain over a long period of time according to a certain testing method, for example ISO 1585.
units: 1 horsepower [21] 7.5 × 10 2: astro: approximately the amount of sunlight falling on a square metre of the Earth's surface at noon on a clear day in March for northern temperate latitudes: 9.09 × 10 2: biomed: peak output power of a healthy human (non-athlete) during a 30-second cycle sprint at 30.1 degree Celsius. [22]
10,433 horsepower (7,780 kW) 1-hour rating; 9,977 horsepower (7,440 kW) continuous rating One of the most powerful electric locomotives ever built, it also is the most powerful (short term) single-frame locomotive ever built (currently [ when? ] its maximum short term power is limited to 12,000 horsepower (8,948 kW )); It has immense short term ...
1 PSh = 0.73549875 kW⋅h = 2647.7955 kJ (exactly by definition) The horsepower-hour is still used in the railroad industry when sharing motive power (locomotives). For example, if Railroad A borrows a 2,500 horsepower locomotive from Railroad B and operates it for twelve hours, Railroad A owes a debt of (2,500 hp × 12 h) 30,000 hp⋅h.
Power-to-weight ratio (PWR, also called specific power, or power-to-mass ratio) is a calculation commonly applied to engines and mobile power sources to enable the comparison of one unit or design to another. Power-to-weight ratio is a measurement of actual performance of any engine or power source.
1.61×10 40 J Baryonic mass-energy contained in a volume of one cubic parsec, on average. [265] [271] 10 41 2.276×10 41 J: Gravitational binding energy of the Sun [272] 5.3675×10 41 J: Theoretical total mass–energy of the Earth [273] [274] 10 43 5×10 43 J Total energy of all gamma rays in a typical gamma-ray burst if collimated [275] [276 ...