Don't forget to put a camera at at least 200m when you do your experiments. or better one that uploads the video stream directly.I'd love to see the results.best regardsJantje
I'd rather try and fail than not try at all. And I don't have a Praxair anywhere near me. And I'm sure if I could get to one, it would be extremely expensive.
Would hydrogen in gas form work though? Suppose I have a y-splitter in line with hydrogen and compressed air. A one way valve respectively on each. Is I fed compressed air into said valve with the hydrogen, would it push the hydrogen gas out at high enough speed to provide thrust?
Quote from: WireJunky on Sep 09, 2013, 09:36 pmWould hydrogen in gas form work though? Suppose I have a y-splitter in line with hydrogen and compressed air. A one way valve respectively on each. Is I fed compressed air into said valve with the hydrogen, would it push the hydrogen gas out at high enough speed to provide thrust? Please don't take this the wrong way, but this is the kind of question that indicates that you're not qualified to even take a swing at this project. I'm not an expert on hydrogen propulsion, nor am I an expert on compressed gas systems. But I am enough of a red-neck to know that when you've got a compressed gas cylinder, at over 2000 psi, you don't need to add compressed air to the line to push the other gas out. By the time hydrogen is compressed down enough that it is a liquid at room temperature, it will be MORE THAN HAPPY to come out of a valve far faster than you would like it to. That's why the compressed gas cylinder has a regulator on top.Watch this video to see what happens when a compressed gas cylinder has its regulator knocked off: http://www.youtube.com/watch?v=ejEJGNLTo84How's that for thrust? No additional energy needed.Here is the one, fundamenal, insurmountable limitation in your idea to build a hand-mounted repulsor: Newton's Third Law. Assuming you can get your repulsor working, whatever force you impart on an object will be equally imparted back on you. So you will not be able to move any object larger or heavier than you could with your arms. So if you are imagining that you can harness the power of hydrogen to generate huge amounts of thrust that knock over cars and blow down walls, sorry--not going to work. If you exert enough force on a car to knock the car over, what will happen is that you will fall down and the car will stay where it was, as if the car had hit you with that amount of force instead.
Obviously we have a miscommunication here.I am talking about a simple system, no compressed tanks or anything.
Quote from: WireJunky on Sep 10, 2013, 03:58 amObviously we have a miscommunication here.I am talking about a simple system, no compressed tanks or anything.How can you have liquid H2 without a pressurized tank? H2 is not liquid at STP.
I am not talking about liquid H2. I'm talking about GAS H2.