Plumbing for rocket engine,

[Achille Becker]

Hello all our university is doing a project to build a rocket engine, we would need somewhere where we could learn how to choose the fittings, valves, fuel lines, and what attributes each have. we will be using two propellant to feed the engine the first one is liquid oxygen which is a cyrogenic liquid, so cyrogenic resistant fuel lines, valves, and fittings, i dont have any particular plumbing knowledge so any help would be appreciated

 

[rpm]

 

[Chuck]

Hello all our university is doing a project to build a rocket engine, we would need somewhere where we could learn how to choose the fittings, valves, fuel lines, and what attributes each have. we will be using two propellant to feed the engine the first one is liquid oxygen which is a cyrogenic liquid, so cyrogenic resistant fuel lines, valves, and fittings, i dont have any particular plumbing knowledge so any help would be appreciated

Such a project will probably need: Expertly TIG welded stainless steel fabrication throughout. No oxidisable elements, which excludes most lubricants. Expert CAD analysis of transient thermal stresses prior to cool-down. Expert safety and failure analysis.

Experiments with liquid oxygen often don't end well; it's very dangerous in the hands of idiots, and only idiots play with it.

 

[Achille Becker]

Such a project will probably need: Expertly TIG welded stainless steel fabrication throughout. No oxidisable elements, which excludes most lubricants. Expert CAD analysis of transient thermal stresses prior to cool-down. Expert safety and failure analysis.

Experiments with liquid oxygen often don't end well; it's very dangerous in the hands of idiots, and only idiots play with it.

Hey thanks for that response, i guess i'm in idiot then Liquid oxygen is very dangerous only near a spark or a fire, we are easily able to control that. thank you again for the response

 

[Chuck]

Hey thanks for that response, i guess i'm in idiot then Liquid oxygen is very dangerous only near a spark or a fire, we are easily able to control that. thank you again for the response

You clearly don't understand the hazards involved with actually using liquid oxygen or the effect cold oxygen vapour has on normally safe materials. The fact that you are asking for information about cryogenic engineering on a forum that specialises in domestic and commercial plumbing and heating indicates that you have a great deal to learn.

Good luck, you'll need it.

 

[gmartine]

Build a pulse jet, it's safer.

Just don't do it near any old peoples homes or they might think the V1s are coming all over again.

 

[Achille Becker]

You clearly don't understand the hazards involved with actually using liquid oxygen or the effect cold oxygen vapour has on normally safe materials. The fact that you are asking for information about cryogenic engineering on a forum that specialises in domestic and commercial plumbing and heating indicates that you have a great deal to learn.

Good luck, you'll need it.

All these hazards are minor issues which we have already solved on our test pad, using a deluge system, and aerogel protection on all hydroware/hardware, our engine’s main combustion chamber will be covered with sensor so that we know exactly how much pressure is exercessed and cameras, to see if there are any failures on the outside. Saying that we have much to learn is wrong; we have all the knowledge we currently need except from the fueling lines point of view. We have the knowledge you don’t have, so I think we are going to stick to our safety point of view and not yours

 

[Ric2013]

If you think you don't have a lot to learn, wait until you finish university. I've been through university and the more I learnt, the more I realised there still is to learn. I've also realised I won't live long enough to learn everything, but you can't have it all.

In any case, not quite sure what you are after. You need industry information on what fuel lines, valves, and fittings are cyrogenic temperature resistant, I think? This is a very specialist area (more engineering than plumbing) and I would think you'd need to start contacting manufacturers to confirm suitability.

 

[Achille Becker]

If you think you don't have a lot to learn, wait until you finish university. I've been through university and the more I learnt, the more I realised there still is to learn. I've also realised I won't live long enough to learn everything, but you can't have it all.

In any case, not quite sure what you are after. You need industry information on what fuel lines, valves, and fittings are cyrogenic temperature resistant, I think? This is a very specialist area (more engineering than plumbing) and I would think you'd need to start contacting manufacturers to confirm suitability.

all right thank you very much

 

[OffshoreGas]

The companies you need to be looking at are Swagelok, Parker and Butech, they specialise in high pressure instrument tube and fitting systems.

You'd need to actually fabricate the combustion chamber from something fairly exotic, building an actual rocket motor is way beyond a typical undergraduate course.

You could build a jet engine using a turbo from a car/van or you can build a pulse jet, both are a lot more straight forward.

 

[Achille Becker]

The companies you need to be looking at are Swagelok, Parker and Butech, they specialise in high pressure instrument tube and fitting systems.

You'd need to actually fabricate the combustion chamber from something fairly exotic, building an actual rocket motor is way beyond a typical undergraduate course.

You could build a jet engine using a turbo from a car/van or you can build a pulse jet, both are a lot more straight forward.

got it thanks