Article Summury
Today’s production cars equipped with engines whose power compared to the displacement has significantly increased compared to the past. This is due to the development of technology with technical achievements in the invention of new fuel injection systems, in variable valve timing, in the use of turbochargers, etc. Therefore, it is interesting to know how the unit of measurement of the power of an engine, defined precisely as horsepower, is born and what its value is compared to other units of measurement. However, we must not forget that when we are driving, prudence and compliance with the rules of the CdS must prevail over the car’s performance. From this content, you will know how much horsepower does a horse have? SO, keep your eyes on the blog.
Getting Know: how much horsepower does a horse have
With the advent of steam engines, it was necessary to introduce a unit of measurement to determine the power that these machines were able to develop, according to the use for which they were intended and for their improvement. It was essential to be aware of the number of horses that the machines could replace to perform the same job.
The Scottish engineer James Watt (1736-1819), historically known for having made a decisive contribution to the improvement of the Steam Horses, was introduced at the end of 1700, in 1789 to be the exact middle of the industrial revolution. Efficiency (mechanical efficiency) of the steam engine. It was thus decreeing its wide diffusion (carriages, trains, and steamboats; agricultural vehicles and industrial steam machinery.
Development of the 4-stroke engine
The machine that soon led to the development of the 4-stroke engine was invented in 1867 by the German engineer Nikolaus August Otto and his friend Eugen Langen. The choice of defining, with the term Horsepower Vapor. The unit of measurement by which to have known the value of the power delivered by an engine was made by Watt.
As the newly invented machines had “steam” as their driving force. They replaced the draft “horses” used, until then, for towing means of transport (e.g., carriages, stagecoaches, and omnibuses) or in manufacturing processes. It was necessary to operate, for example, mechanisms consisting of various shafts and gears keyed together and of a certain size, which man’s strength, very limited in terms of muscular power (instantaneous effort and prolonged effort) could not set in motion.
Development of the 4-stroke engine
While not able to perform exact theoretical calculations, Watt. This supported by practical experience, able to establish, in a very reliable way. The power of a Steam Horse almost equal to the energy released by a draft horse. Which confirmed with a study conducted in 1993. Therefore more than two centuries later. The subsequent introduction of the Watt as a unit of measurement for mechanical power will then take the horsepower. Its name was choosing in memory of the Scottish engineer.
The Steam Horse: definition and equivalent power
Horse Vapor is defined as the unit of measurement of the mechanical power delivered by an engine. Its symbol is a CV, and its value, in terms of energy produced. It is equivalent to 735.5 Watt and 75 Kgf × m / s. DIN value is established and recognized by the German Institute of Standardization, based in Berlin ).
Although not classified as a “derived physical quantity” by the International System of Units (SI).
It used for a long time in Europe, the United States, Russia, etc. It only in 1982 in Italy it replaced Watt with DPR n. 802. When our country decided to join the SI Today. This mostly in Europe. It is still using traditionally to indicate the power of the engine in the automotive sector and beyond. 1 Horsepower the power needed to lift the weight of 75 kilograms force by 1 meter in 1 second: 1 CV = 75 Kgf × m / s
The British Steam Horse.
Is horsepower assumes different values?
The horsepower assumes different values in Great Britain. Which why the one adopted in Europe defined precisely as “European horsepower”. This used in England as “British horsepower.”
British horsepower equals 745.7 Watts. It is calling “horsepower” and the symbol it assumes is the initials of the name itself, HP.
- 1 European CV = 0.986 HP
- 1 HP = 1,014 European HP
Horses Steam that develops a horse – how much horsepower does a horse have
It was only 200 years after introducing the Horsepower (CV). This was possible to ascertain how many horsepowers a draft horse and a racing horse develop on average—according to the study conducted by RD Stevenson and RJ Wasserzug. It is publishing in an article entitled “Horsepower from a horse” in the journal Nature n. A racehorse can deliver instant power. Therefore for a few seconds, of about 15 Horsepower (ability, the latter, slightly higher than that supplied by regular 125 cc scooters of displacement. Currently in production, which develops about 12-13 horsepower).
The Horses Steam that develops a man – how much horsepower does a horse have
Therefore A man weighs 75 kg, who walks at a constant speed of 5 km/hour, therefore at a brisk pace. It develops an average power of 105 Watts, which is equivalent to 0.14 Horsepower. The maximum capacity that instead of released for a few seconds. Therefore This 3.2 Horsepower, equal to 2352 Watts (instantaneous power).
The fastest ones in the world can even release 6.3 Horsepower, but always for a few moments. Therefore, the human being develops, more or less, an average power seven times lower than that produced by a draft horse. I hope now you are clear how much horsepower does a horse have. Thanks for your reading.
