Research and Test Infrastructure

High-Altitude Simulation Test Facility P1.0

Altitude simulation for satellite engines

In order to develop, test and qualify propulsion systems for satellites, upper stages or even space probes for their later use, it is necessary to create appropriate test conditions. This was achieved at P1.0 by setting up a vacuum test bench. Here it is possible to test the test specimens under space-like conditions with an ambient pressure of just a few millibars. The P1.0 test bench is the smallest test bench used in the Test Systems department for tests under high-altitude conditions.

Areas of application

  • Testing orbital space and satellite propulsion systems in a vacuum
  • Space propulsion systems up to 600 newtons
  • Apogee thrusters up to 400 newtons

Fuels

Mass flow

Monomethylhydrazine

0.12 kilograms per second

Nitrous tetroxide (N2O4)

0.12 kilograms per second

Number of test positions

  • one test position

Height simulation

  • Continuous vacuum up to 1.5 milibar operated by steam
  • special objectives are mission requirements of up to 2 hours of hot runs and long "coast phases" for re-ignition

Facts & Figures

The P1.0 test stand can be divided into three areas. The first is the altitude system, which together with the altitude chamber forms the test cell and is intended for holding the test specimen. The second large part of the system is the steam generator, which is operated with alcohol and liquid oxygen. Its task is to generate steam which is accelerated by supersonic nozzles located in the vacuum line. The expanding flow of steam creates a vacuum in the line and the connected altitude chamber. The third component is the engine supply system, which supplies the operating materials for the engine. The design of this system allows various configurations and operating modes for the test specimens.

Contact

Jan Böning

Head of Test Facility
German Aerospace Center (DLR)
Institute of Space Propulsion
Test Facilities
Im Langen Grund, 74239 Hardthausen
Germany