Real Liquid Fuel Engine - The Basics

[MalfunctionM1Ke]

Hi Guys,

I just found this Video on Youtube that explains the Basics of simple Liquid Fuel Engines.

Guess you find that interesting.

Edit:

Here is testfiring

Edited September 29, 2015 by MalfunctionM1Ke

[Zephram Kerman]

That's a good 'un! Very concisely describes many of the basic concepts of a liquid fuel rocket motor: fuel flow, regenerative cooling, helium pressurization, injector design, consequence of hot start, and how the ignition sequence prevents hot starts. Twenty minutes ago I couldn't have articulated any of these concepts, but now I get it.

[Streetwind]

This should probably go into the Science Labs...

Great video though!

[Cirocco]

sweet! very interesting, thanks a bunch!

[superm18]

Proud Dane here

[SgtSomeone]

Watched it with subtitles. Burst out laughing when it described the rocket as "between 65 and 19 kill a new term"

[Vanamonde]

I do find it interesting, but as this is not about the game itself, the thread has been moved to Sci Labs.

[MalfunctionM1Ke]

Yeah, you are probably right, Vanamonde. Thanks

[Mad Rocket Scientist]

Take a look at their video on their turbopump:

[Nothalogh]

Take a look at their video on their turbopump:

Straight out of Jebediah's Junkyard

[MalfunctionM1Ke]

Take a look at their video on their turbopump:

Sweet

Interesting that they need another Fuel to keep the turbopump running.

I would have guessed that they use the Fuel and Oxidizer already on board.

[sgt_flyer]

Sweet

Interesting that they need another Fuel to keep the turbopump running.

I would have guessed that they use the Fuel and Oxidizer already on board.

Guess it's because it allows them to limit the complexity / needed materials a lot for the turbine (much less temperature to manage, so they don't need to use pricy specific materials for the turbine, and don't have to face thermal deformation.

Besides, V2 rocket and the Redstone rocket / jupiter missile also used peroxyde + catalyst to drive their turbopumps

[MalfunctionM1Ke]

Guess it's because it allows them to limit the complexity / needed materials a lot for the turbine (much less temperature to manage, so they don't need to use pricy specific materials for the turbine, and don't have to face thermal deformation.

Besides, V2 rocket and the Redstone rocket / jupiter missile also used peroxyde + catalyst to drive their turbopumps

True, so adding more parts and different propellants make the rocket-design simpler as you work around really big Problems.

[sgt_flyer]

Yup, but you lose in efficiency (mass fraction / 'real' ISP) in the process.

However, given copenhagen suborbitals objectives and fundings, they are building nice experience with a cheap simple design well suited to accomplish their objective.

The day they'll need a more efficient design, they'll be able to draw from the knowledge they acquired to devellop it

Edited October 5, 2015 by sgt_flyer