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 Agdestein 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

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Related Posts

Blog

BPM100 DPR?

Dear readers, Designing the world’s largest amateur rocket is not an easy task. It’s an iterative process with a lot of dependencies. One of the very important dependencies relates to the rocket’s “propellant delivery system”, Read more…

Videos

Nexø II debriefing part 3: Flight Dynamics and data analysis

Some weeks ago we hosted a public debriefing event in Copenhagen. In this third video Flight Director talks about the Nexø II flight profile and lessons learned from the flight.

Videos

Nexø II debriefing part 2: Onboard cameras & the video transmitter

A few weeks ago we hosted a public debriefing event in Copenhagen. In this second video Alex Csete, OZ9AEC talks about the Nexø II onboard cameras and video transmitter built from COTS components.