Jacob Skov Larsen is here presenting the test of the DPR system (Dynamic Pressure Regulation) of the Nexø 2 rocket. This system is what sets it apart from Nexø 1. The system is an extra section of the rocket about 1 m in length that sits above the Alcohol tank.
The section contains a Carbon Fiber high-pressure tank. This will be filled with the Helium gas at 300 bar used to pressurize the Alcohol and LOX tank.

This test is to confirm that the whole DPR system – Compromising of tank, piping, fittings aka “Christmas tree” – is airtight and can handle the pressure of 440 bars total. This is the 300 bar working pressure and the safety factor required.


Published by Rasmus Ragdestein on

1 Comment

Andreas · 23rd June 2017 at 1:31 pm

Hey Dears,

Nice to see you wear safety goggles in DPR tests. It would also be nice, if you also wear the ear protectors. In the case of a tankburst, the pressure is less than the material the decisive factor. Somewhere the energy has to go.

Good luck
Andreas

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