História da MÁQUINA A VAPOR. Evolução da Tecnologia a Vapor. A Máquina a Vapor ao Longo da História

Today we are going to talk about the history of Watt's steam engine Hey Engineering Lovers, my name is Igor Felipe and today we are going to talk about an invention that allowed the development of the industrial revolution, the steam engine Watt's steam engine, invented by James Watt during the Industrial Revolution, represents an innovative technological advancement that powered the world through improved forms of transportation. And although Watt did something truly innovative, he also built on the work of previous inventors, including Thomas Savery and Thomas Newcomen. And before continuing, if you are watching this video and are not subscribed, take the opportunity now to subscribe , leave a like and activate the bell so you can be part of the biggest community of engineering lovers on YouTube, are you done?

The first experiments and innovations using steam power brought significant advances. They provided the foundation for future inventors and engineers to develop, refine, and expand these concepts. As we said in our video about the steam horse, the history of the steam engine begins a long time ago, but if you haven't seen this video, don't worry, there will be a card for it at the end of this video here.

The origins of steam technology date back to around 75 AD, when the mathematician Hero wrote about the mechanics and properties of air and presented plans for a basic steam engine. His design consisted of a hollow sphere with bent tubes coming out of the sides. By filling the sphere with water and placing it over the fire, the heat would vaporize the water and the resulting steam would escape through the tubes, causing the sphere to rotate.

This invention laid the foundation for new advances in steam technology. In the 17th century, Italian scholar Giovanni Battista della Porta realized that steam played a role in creating a vacuum. He theorized that when water was converted to steam inside a closed container, this would result in an increase in pressure, while condensation of the steam back into water would produce a decrease in pressure.

It was in 1679 that French scientist Denis Papin turned della Porta's theory into reality with a project he called “Digestor” or “Engine for Softening Bones”, I know, a bit of a strange name. It wasn't really an engine, but the device he created resembled a pressure cooker, and this became the first practical application of steam pressure. Papin further refined the concept by incorporating a sliding piston on top of a closed cylinder filled with water.

As the water heated, the steam expanded and pushed the piston upward. When the steam cooled, it condensed, and created a vacuum, pulling the piston back down. All these developments allowed the birth of steam engines.

In 1698, military engineer Thomas Savery obtained a patent for his innovative steam pump, the Miner's Friend. She was considered a miner's friend, because many mines end up flooding during exploration, and she helped the miners with exactly that water. Savery's steam pump consisted of a system that took advantage of the benefits of water vapor and its condensation to pump water from a lower level to a higher level.

But with Savery's invention, an English inventor called Thomas Newcomen took inspiration from Savery's boiler system and Denis Papin's steam piston. In the early 18th century he developed what was called the atmospheric engine or as it was called, the Newcomen steam engine, which would also be used to pump water from mines. It worked by using steam to create a partial vacuum in a cylinder, and atmospheric pressure would push a piston down, allowing the engine to run.

And after these developments and improvements, we finally arrived at Watt's steam engine. James Watt, was an instrument maker who worked at the University of Glasgow, and further improved the design and efficiency of steam engines. As early as the late 18th century, Watt experimented with and developed the Watt atmospheric engine, which incorporated a separate condenser and the ability to harness the expansive force of steam.

By isolating the condensation process from the cylinder, it minimized heat loss and maximized energy production. He also introduced the double-action engine, which allowed the generation of energy in the up and down movements of the piston. Watt patented his steam engine in 1769 and the efficiency of this machine ended up being suitable for transportation, being widely used in steam trains at the time.

This helped connect distant regions and facilitate the movement of goods. In 1774, Watt formed a partnership with Matthew Boulton, who was a businessman and manufacturer who was key to the commercial success of the steam engine. It was Boulton who recognized the potential of Watt's invention and saw an opportunity to produce and commercialize it on a large scale.

With the commercialization of James Watt's steam engine now being manufactured on a large scale and serving various sectors, it played a fundamental role in industry, where it was not only used in the transport sector, but also in factories and mills. This invention proved to be a reliable and efficient source of energy, and played an extremely important role in society during the industrial revolution. His invention caused locomotives to replace animal traction with powerful steam engines, and even ships to replace sails and oars with steam engines.

Watt's steam engine also drove advances in science, engineering and technological innovation, laying the foundation for new advancements and inventions that we have today. And did you know about the history of the Steam engine? Did you know that it was James Watt who laid the foundations for the CV power unit?

Leave it here in the comments and I want to know. I'm going to leave two videos here that you might like too and which, by the way, are worth checking out. If you liked the video, leave a like, subscribe to the channel and share this video with other people.

That's it engineering lovers, a big hug and I'll see you in the next video.