002:How rockets work :instant way to become an astronaut
So, in the last blog we have discussed a little on how a rocket works.We have talked about the fuel and chamber where the combustion of the gas (oxidizer and fuel) generates massive temperatures which in turn creates a massive pressure inside the compartment. To make it clearer, we want to mention some information regarding the Rocket fuel too.
🤓“As they say; An engine without fuel and a a life without goal is exactly the same. Nothing but meaningless”🤓
It’s a hydrogen gas (H2) which is often used as fuel in a rocket engine because it produces more energy when burnt than many other fuels. Itis light in weight, which is an important consideration when lifting stuff. H2 reacts with oxygen(O2)to form water and that releases energy.The Energy is released Only when water is made. The more water made, the more energy released - and the bigger burst 💥
This whole process is known as combustion.The reaction is given by:
Well, depending on design and purpose, there are a number of other fuel/oxidizer combinations that have higher energy mass ratios, but they are all much more expensive and generally much more dangerous to handle.
A small opening at one end of the chamber in the rocket allows the gas to escape, and in doing so provides a thrust that propels the rocket in the opposite direction. A good example of this is a balloon.
Air inside the balloon is compressed by the balloon’s rubber walls. The air pushes back so that the force on each side will be balanced, when we open the nozzle, air escapes through it and the air thrust pushes the balloon forward.
The same process happens in the rocket as shown in figure below.
Hope that we are clear about the type of fuel, combustion and thrust, that we need in our launching project. In the next blog we will check further regarding the other things we need for our project.
See you in the next blogg!!! DAB!!!!
Combustion: it is a chemical process in which a substance reacts rapidly with oxygen and gives off heat. The original substance is called the fuel, and the source of oxygen is called the oxidizer
Thrust: It is the force generated by the engine which moves the rocket through the air
Picture ref._ google, safari