You'll need to estimate drivetrain and rolling friction losses and reduce the peak power by … One electrical horsepower is equal to 0.746 kilowatts: 1 hp(E) = 746 W = 0.746 kW. Second: kilogram metre per second (kgf m/s) is unit of power. Find the speed where the equation returns a lower value than your starting tractive effort. Remember, the output horsepower, not the maximum horsepower! Find a "Continuous Tractive Effort" rating for your locomotive. So, I need a way to translate the torque/ power the engine is sending to the wheel into a force that the wheels are exerting (sp?) We can tell because we got 10,750lbs more tractive effort than we should have. See how much tractive effort you lose with speed? In particular. Convert power of Mechanical horsepower (hp I) and kilograms force meter/second (kgf m/s) units in reverse from kilograms force meter/second into Mechanical horsepower. Le frein était à l'époque un outil permettant de déterminer la puissance du moteur. Can spinning motion be converted into linear motion. Any feedback is appreciated. horsepower to zeptowatt 1 ft.lb/min = 0.000030 Hp That's all for this chapter. 5. against the ground to move the car forward. $ Refer to the example of one person exerting 40 pounds of force to pull an object 2 feet in 2 minutes. With this in mind, there are two places we can get tractive effort: I do not take credit for this excellent formula. National Institute of Standards and Technology, Bureau international des poids et mesures, « NIST Guide to the SI, Appendix B.9: Factors for units listed by kind of quantity or field of science », https://fr.wikipedia.org/w/index.php?title=Cheval-vapeur&oldid=174788865, Article manquant de références depuis septembre 2017, Article manquant de références/Liste complète, Article contenant un appel à traduction en anglais, Page incorrectement traitée par le Module:Unité, licence Creative Commons attribution, partage dans les mêmes conditions, comment citer les auteurs et mentionner la licence, masse multipliée par accélération de la pesanteur = 1, le cheval-vapeur représente donc : 735,5 [N] × 1 [m] / 1 [s] = 735,5. Is it able to convert electricity into propulsion force? 2. for conversion factors between unit pairs. The link to this tool will appear as: power from Mechanical horsepower (hp I) to kilograms force meter/second (kgf m/s) conversion. area, mass, pressure, and other types. 1 horsepower to kilogram-force meter/minute = 4564.24977 kilogram-force meter/minute, 2 horsepower to kilogram-force meter/minute = 9128.49954 kilogram-force meter/minute, 3 horsepower to kilogram-force meter/minute = 13692.74931 kilogram-force meter/minute, 4 horsepower to kilogram-force meter/minute = 18256.99908 kilogram-force meter/minute, 5 horsepower to kilogram-force meter/minute = 22821.24885 kilogram-force meter/minute, 6 horsepower to kilogram-force meter/minute = 27385.49862 kilogram-force meter/minute, 7 horsepower to kilogram-force meter/minute = 31949.74839 kilogram-force meter/minute, 8 horsepower to kilogram-force meter/minute = 36513.99815 kilogram-force meter/minute, 9 horsepower to kilogram-force meter/minute = 41078.24792 kilogram-force meter/minute, 10 horsepower to kilogram-force meter/minute = 45642.49769 kilogram-force meter/minute. Once you've found the speed where the equation starts, as well as tuned the efficiency coefficient to match the measured values, you can use the equation to find the tractive effort for any throttle position, not just the max horsepower output (RUN8).

Les États-Unis ont un « cheval-vapeur de chaudière » (boiler horsepower (en), ou bhp) défini comme étant la puissance requise pour faire évaporer 34,5 lb (livre impériale britannique) d'eau à 212 °F (100 °C) par heure sous une atmosphère normale.

Thank you. It is located on page 11. La puissance est mesurée à la sortie du vilebrequin de façon à éviter les pertes de puissance dues à la transmission. If we work the same math with the new 0.72 efficiency, we get this: - Commissione Unificazione e Normalizzazione Autoveicoli e Commissione tecnica di UNificazione nell'Autoveicolo. Acceleration is a measure of how quickly you are gaining or losing speed. Therefore, the car developed an average of 78.0 horsepower, not 100 horsepower. Convert 10 hp to kW: P (kW) = 0.746 ⋅ 10hp = 7.460 kW . horsepower to erg/second Désormais, la puissance est mesurée avec le moteur équipé de ses accessoires et de ses échappements de série, ce qui a diminué l'écart entre ces deux normes. This site is my passion, and I regularly adding new tools/apps.

For the first 5-10 miles per hour, you need to just use the starting tractive effort and ignore the equation. La puissance était mesurée en brake horsepower (bhp), ou puissance au frein. So the power conversion of horsepower to kilowatts is given by: P (kW) = 0.746 ⋅ P (hp) Example. You still need to convert to horsepower. For the F7, that looks like this: I am wanting to accurately calculate the top speed of a car (using it's power, mass, drag, and friction). It is the EQUAL power value of 1 Mechanical horsepower but in the kilograms force meter/second power unit alternative. Instant free online tool for horsepower to newton meter/second conversion or vice versa. The locomotive is not 85% efficient, it is less than that. An F7 is moving at 40mph, and is in RUN6. Also, explore tools to convert horsepower or newton meter/second to other power units or learn more about power conversions. For a better experience, please enable JavaScript in your browser before proceeding. livres force par seconde. The mass is easy to find. JavaScript is disabled. power is energy/time.

The power converter from hp I ( Mechanical horsepower ) measure to kgf m/s ( kilograms force meter/second ) equivalent. conversion calculator for all types of measurement units. It is roughly proportional to throttle position, so we can estimate the output horsepower like this: So for an F7 with the throttle in RUN1, the math would look like this: And it looks like, from this, we could convert horsepower to foot-lbs and be all done, right? Because of the complex machinery generating this force, the output force at the wheels is not linearly proportional to the throttle position. In the next chapter, we'll discuss a few quirks to the tractive effort formula, and some other forces that act on a train. to use the unit converter. Please enable Javascript
P is Horsepower.
Justin XoXo :), Horsepower to Foot Pound Force Per Second, Horsepower -> atmospheres cubic foot per second, Mbtu per hour -> liters atmosphere per second, Attojoules per second -> horsepower boiler, Pound foot per second -> horsepower hydraulic, Microjoules per second -> btu per second TH. 32,999 Foot pounds-force/Minute (ft.lb/min) 1 Hp = 32,999 ft.lb/min. For the F7, this is 8.9mph, but if you're using another locomotive you'll have to find it. 63,025 is a constant when using RPM for speed and in-lbf for torque units. Type in unit

La valeur exacte dépend de la chaleur d'évaporation utilisée, mais la plus fréquente est 970,3 BTUIT/lb, ce qui donne : Le boiler horsepower a été utilisé depuis 1876 pour mesurer la puissance des machines à vapeur et n'est plus utilisé de nos jours. Horsepower is an interesting concept. 4 horsepower to kilogram-force meter/minute = 18256.99908 kilogram-force meter/minute. I deemed this acceptable, so this guide will be using this formula for tractive effort unless a better method comes along. Convert that rating to metric units. (force needed to brake engine) puissance au frein nf nom féminin: s'utilise avec les articles "la", "l'" (devant une voyelle ou un h muet), "une". In relation to the base unit of [power] => (watts), 1 Horsepower (hp) is equal to 745.69987158227 watts, while 1 Foot Pound Force Per Second (ft.lbf/s) = 1.3558179483294 watts. 1 horsepower to kilogram-force meter/minute = 4564.24977 kilogram-force meter/minute. 2 horsepower to kilogram-force meter/minute = 9128.49954 kilogram-force meter/minute. a paper by Virginia Tech on Rail Resistance Equations. Converting unidirectional linear motion into rotary motion? This is available in most locomotive data sheets. Power = force times speed. Find My Location: IP address, city, latitude & longitude. Horsepower = (3,000 x 6) / 63,025 = 0.286. Horsepower may also be expressed as 1 hp = 33,000 foot-pounds/ minute or 1 hp = 550 foot-pounds/second. horsepower or The answer is 0.00021909405719392. CONVERT :   between other power measuring units - complete list. Test the same coefficient at that speed, and see how close you are. If you are not already familiar with the basics of F=MA, please read more on that here. One horsepower = 745.7 watts, so. Ainsi, le shaft horsepower, abrégé en « shp », désigne la puissance s'exerçant sur l'arbre de transmission d'une hélice de bateau ou d'avion ou d'un rotor d'hélicoptère. So to find the acceleration (and thus the speed) we need to know the force acting on the train and the mass of the train. Horsepower. Find the tractive effort. This means that one horsepower could lift 550 pounds by 1 foot in 1 second. 8. Find your locomotive's starting tractive effort. You might be able to find another rating for your locomotive (at a different speed). not enough detail. You can ignore the gearing factor, since it's assumed that you gear the car so peak power occurs at top speed, so the rpm, torques, ... don't need to be known. La norme CUNA était comparable à la norme américaine SAE où la puissance du moteur est déterminée sur banc pratiquement sans accessoires. Power units represent power physics, which is the rate at which energy is used-up, either transformed or transferred from its source to elsewhere, by various ways within the nature of physics. 3. work with power's values and properties. We want to find the acceleration of the train, and we can use algebra to rearrange F=MA, making it Acceleration = Force/Mass. La définition anglaise est donc le déplacement, à la surface de la Terre, d'environ 81 kg dans un sens opposé au champ de gravitation terrestre à une vitesse de 0,93 m s−1. Conversion tool with multiple power units. symbols, abbreviations, or full names for units of length, In English units to calculate horsepower given force and speed: power/hp = force (lbs) x speed (mph) / 375 (conversion factor).

The electrical horsepower is used by the electrical industry for electrical machines and is defined to be exactly 746 W (at 100% efficiency). so instantaneous power is force*distance/time, which is force*velocity. For the F7, I found that the optimal efficiency is 72%, which sets the efficiency coefficient at 0.72. The answer is: 1 hp I equals 76.04 kgf m/s. To link to this power Mechanical horsepower to kilograms force meter/second online converter simply cut and paste the following.

A new spin on atoms gives scientists a closer look at quantum weirdness, New model that describes the organization of organisms could lead to a better understanding of biological processes, Ultrapure copper for an ultrasensitive dark matter detector, Converting engine torque to applied linear force. For the F7, I found ~0.72 is best. Great — now you know the force applied and the average speed. When we work that out, T = 225748.1509 Newtons. Il existe également différentes dénominations spécifiques selon le point auquel la puissance est mesurée. Read more on accceleration here. horsepower to yottawatt. Prob. The horsepower [hp, hp (UK)] to newton meter/second conversion table and conversion steps are also listed.

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