I built the World War II V2 Rocket Steam Turbine

To help with the hydrogen peroxide coming out of the turbine it could help to mount the catalysator vertically; the fluid stays at the bottom and has a better chance to decompose before exiting to the turbine.

Maybe to improve the decomposition of the peroxide you can have the pump run the peroxide vertically into the catalytic converters. That way the liquid stays at the bottom of the converters and the steam rises up into the turbine.

I had NO clue catalytic converters could do that to H2O2! Freaking awesome and really does make things so much more practical.

To help with the H2O2 getting into the turbine, you could try a 2 stage reaction chamber. So, have the exhaust of the catalytic converter feed into another plastic tube containing the potassium permanganate doped ceramic thingy that you made in an earlier video. Then have the exhaust from that tube feed into the turbine.

The catalyzer needs to be vertically mounted, bottom fed, and have a high pressure reflux column with baffles to recycle peroxide that hasn't decomposed.

I’m really enjoying seeing all these engines and rockets. It would be really interesting to see you put all this experience toward an actual small scale rocket.

You could scavange a fuel injector and fuel pump from a car. That would give you a good spray pattern into the catalytic converter and as really high flow rate, and granular control over the reaction by manipulating the injectors spray rate by controlling it with some sort of PWM generator (arduino or similar) and some transistors or high speed relays. Cool project!

Just a thought as well, could you accelerate the reaction by preheating the peroxide before it hits the converters. lastly hook the turbine shaft to the pump and use a valve to throttle it?

Im thinking it might be advantageous to mount your reaction chamber vertically, that way you can submerge the 2nd cataliser section, let the H2O2 buble up into the 3rd section, this should help limit the amount of liquid that gets pushed through the turbine. Speaking of the turbine, lm blown away you didnt use the tesla turbine as a comparison. Great video as always.

Future idea: Get the community to send you 3D models of rocket nozzle designs that you can print out and test against each other to see if crowdsourced engineering can improve on existing designs

I just followed a course about hydraulic turbine design and to see you put that into practice made my day. Tip if you want to build a good turbine, just look up the Cordier diagram. In short, it tells us that the size and flow rate of a well-designed turbine are intertwined (there are formulas for this). And depending on your flow rate, I expect you need to go smaller.

4:29 damn those are some quick fingers

I'd love to know how many uses you could get out of those cat converters. Not a bad video Joel, and keep up with the CNC machining. Whole new possibilities there mate.

I've always enjoyed your videos but something about the way you made this one is just very, very good. Slightly more chill, really just analyzing different aspects of your design and the project at hand. Not sure if this makes any sense but I really enjoyed it

Your videos are my go to when I start feeling down. Thanks for being an amazing human.

I see two things that needs an improvement, the catalyst tube need to have the output tube it must be in a higher position respect of the input side, so the peroxide can’t exit in a liquid form. The second one it’s the weight of the impeller, you can hear the rpm ramp up sound. Good video.

I’m so happy you are finally seeing promising results! Good job Joel, you’re a genius!

This was incredible! Thank you for your videos! Design recommendations: Move fuel tank/source away from the AB plume & Clamps, or otherwise secure the high RPM point of failure to a surface so you can continue to create? Lol. Also, if the Aluminum turbine failed at those RPMs, the table & bow tie will do their best, but... NEXT BUILD! It might be wild to use your engine here to power a Strandbeest of some sort. I'd imagine it would look like something out of Howl's Moving Castle! You know... For strictly demonstrative purposes & TOTALLY not to create a giant mechanized death spider ala Wild Wild West. 🤔

A steam-powered automatic shooter of some sort seems about right. That high-pressure steam has a lot of potential. Oh and about those broken endmills, try single flute endmills for cutting aluminum. I use mostly 6mm diameter single flute at about 10000rpm, 0.8mm depth of cut, and 1000mm/min feed. It blew my mind and cutting has been much easier since!

So, first thing as mentioned before: Vertical placement of the catalysators to prevent liquid going into the turbine; Secondly you need more steam nozzles to hit the blades, and maybe a redesign of the blades themselves :) Take inspiration from a turbo compressor ;)