Quais as diferenças entre TURBINAS A VAPOR de ação e reação?

Did you like this video? Register your email at the link below to receive notification of new videos about TURBINE VAPOR like this: https://forms.gle/Kc8Ei6rxB7cm6qVGA YouTube Channel - Subscribe to receive updates:    / @turbivap   Follow on LinkedIn:   / turbivap   Whatsapp: Join my list on STEAM TURBINES https://wa.me/5519997155350?text=Ol%C... Access the website: https://www.turbivap.com.br Contact: [email protected] About the channel: TURBIVAP is the TURBINE STEAM Channel, a space for sharing content and information about STEAM TURBINES and the energy cogeneration sector, aimed at the entire user chain: manufacturers, suppliers, customers, engineers, mechanics, buyers, etc. Collaborative space for information and experiences on STEAM TURBINES and related equipment. _______________________________________ TYPES OF ACTION STEAM TURBINES (IMPULSE) AND REACTION STEAM TURBINES can be classified into different categories depending on their construction, working pressure, size and many other parameters. But there are basically two groups of STEAM TURBINES: action STEAM TURBINE or also called impulse TURBINE and reaction STEAM TURBINE. The main difference between these types of TURBINES is the way in which the STEAM is expanded when it passes through the TURBINE, that is, how the process of converting thermal energy into kinetic occurs. So to understand this a little more, let's start by talking about action STEAM TURBINE or also called impulse TURBINE. We call it STEAM TURBINE action, when the STEAM is accelerated inside the TURBINE and it is its shock with the vanes that moves the rotor. The action TURBINE was built for the first time in 1883 by the Swedish engineer De Laval, it was in all the STEAM TURBINE projects of the time because it was suitable for small volumes of STEAM. THE original STEAM TURBINE, the Laval TURBINE, was an action TURBINE with a single wheel.   So in these action TURBINES, the potential energy contained in the STEAM, also known as enthalpy, is the one that transforms the STEAM into kinetic energy and after the shock with the vanes it turns into mechanical energy (rotating rotor). In this type of TURBINE, the entire pressure drop of the STEAM occurs only in the expanders. Although the action stages vane has a practically zero pressure drop in the mobile vane, in theory, for the STEAM flow to pass through these vane, there will also be a small pressure drop in it. THE TURBINE The VAPOR action is composed of mobile vanes or more specifically the wheels, which alternate with fixed vanes, the VAPOR is expanded in the nozzles or expander blocks and remains under constant pressure when passing over the vanes. The action stages can be of two types: pressure stages, also known as Rateau stages, and speed stages, known as Curtis reaction TURBINES stages: after the invention of De Laval's TURBINES of action, in the following years, TURBINES of reaction (first introduced by Charles Algernon Parsons in 1884) also came to be used for mechanical drives. In reaction TURBINES, the potential energy is directly transformed into mechanical energy by passing through the vane profiles. When the STEAM passes through the vanes it generates a reaction force that moves the rotor The working principle of the reaction vanes is similar to that of an airplane's wings. The STEAM flow passing on both sides of the reed profile forms a reaction force that will propel the reed in the direction of rotation. Modern, multi-stage STEAM TURBINES often employ action and reaction on the same TURBINE, usually varying the degree of reaction and impulse from the root to the end of each vane and the closer to the condensed STEAM the greater the degree of reaction