🧵 Untitled Thread
Anonymous at Fri, 29 Mar 2024 22:20:05 UTC No. 16103885
Why do cold thrust systems in rocketry use compressed gas rather than liquids? Im a bit of a brainlet so go easy.
Anonymous at Fri, 29 Mar 2024 22:22:10 UTC No. 16103887
Anonymous at Fri, 29 Mar 2024 22:25:54 UTC No. 16103894
I have been looking at a few videos and most of the cold thrust systems look like they have high pressure 1 liter C02 tanks. These tanks im assuming are filled to about 10,000 PSI. I think the plumbing and cost of all these systems is simple and cheap. What I was wondering though is how liquids would fare? Im looking at liquid nitrogen right now and it has an expansion ratio of 1:694 at 20 Celcius. So 1 liter of liquid nitrogen that has been vaporized at that temperature would be 694 liters of gas. If you just took nitrogen and compressed it to 10k PSI would there be more liters of gas than the liquid state?
Anonymous at Fri, 29 Mar 2024 23:16:26 UTC No. 16103974
>>16103885
Gas expands easier, and reduces the complexity of the thruster.
Anonymous at Sat, 30 Mar 2024 00:10:31 UTC No. 16104032
>>16103885
I thought it was solid for half