T is Tractive Effort, in Newtons. Horsepower (hp) = current draw (amps) x voltage/764. P is Horsepower. We derive the formula for amperage from that to be I=P/V. Enter all the values you found into this formula to find the water horsepower for your project. Power unit conversion between newton meter/second and horsepower, horsepower to newton meter/second conversion in batch, N.m/s hp conversion chart Then you should make a guess as to the efficiency of the motor and there are always other power factors to affect the conversion rate. First we need to convert the horsepower to watts. Horsepower may also be expressed as 1 hp = 33,000 foot-pounds/ minute or 1 hp = 550 foot-pounds/second. The watts equation in mechanics is P = W/t, where W is work in joules and t is time in seconds. It is located on page 11. Horsepower formula and conversions. Force: 1 newton equals: other units to newton: 0.001 kilonewtons: 1 kilonewton = 1000 newtons: 100 000 dyne: (Can also use horsepower (hp) x 63,025 / pump displacement (cu ins/rev) Heat Generation Formulas: Converting heat into other units. Enter these values into the water horsepower formula. There is a formula for horsepower, it was developed by a Scottish inventor named James Watts, in 1764, over several years he developed, patented, and refined several steam engines, to express the capacity of his engines, he developed a comparison between what his engine could do and the average work capacity of a normal size horse, he found a horse could … $ Refer to the example of one person exerting 40 pounds of force to pull an object 2 feet in 2 minutes. • With this standard of measure, the formula for determining horsepower is: $ Horsepower = Force x Distance/Time x 33,000. Watts is the unit of power in the SI (metric) system of measurement. Unit Descriptions; 1 Foot-Pound-Force per Second: Approximately 1.3558179483314004 Watts (SI). Two common definitions used today are the mechanical horsepower (or imperial horsepower), which is about 745.7 watts, and the metric horsepower, which is approximately … 1 hp = 2,545 BTU/hr = 42.4 BTU/min = 33,000 ft. lbs./min = 746 watts. You will be using the formula (RPM x T)/5252=HP, where RPM is the engine speed, T is the torque, and 5,252 is radians per second. 1HP=746 watts. You would get 1,399,200. Tractive Effort Estimation Formula# I do not take credit for this excellent formula. 1 Horsepower (Imperial Mechanical): 550 ft lbf/s. I found it in a paper by Virginia Tech on Rail Resistance Equations. So, if the motor is 2HP, 2HP=1492 watts. Time is measured in seconds. Example: A 2010 Chevrolet Camaro 5.7 liter produces 528 foot pounds of torque at 2650 RPM. When you choose horsepower, this calculator will measure the approximate horsepower of an engine based on the torque of the engine (measured in foot-pounds) multiplied by the RPM of the engine, divided by 5,252 (conversion between foot-pounds and horsepower). HP is a unit for power, as it can be measured by W (watt). I=1492/240 (for single phase), which means I=6.21A. Horsepower (hp) is a unit of measurement of power, or the rate at which work is done, usually in reference to the output of engines or motors. Remember, the output horsepower, not the maximum horsepower! The formula for calculating power in electrical circuits is P=VI. The power formula for a circuit is P = VI, where V is in volts and I in amperes. Distance is measured in meter. The water horsepower, or minimum power required to run the pump, equals ∗ ∗, where TDH is the total dynamic head in feet, Q is the flow rate in gpm, and SG is the specific gravity (1 for water). Physicists use power in mechanics and electricity. Power = Force * Distance/Time. You would calculate 2650 x 528 first. Force is measured in Newton. V is the velocity (aka speed) in km/hr. There are many different standards and types of horsepower. Where: Power is measured in watt. Horsepower (hp) = pressure (psi) x flow (gpm) / 1714 -or- … So the adjusted thrust horsepower formula goes as follows: Horsepower (hp) = current draw (amps) x voltage x efficiency x power factor/764 …