Accession Number:

ADA446254

Title:

Cryogenic and LOX Based Propulsion Systems for Robotic Planetary Missions

Descriptive Note:

Conference paper

Corporate Author:

SNECMA MOTEURS VERNON (FRANCE) MOTEURS SPATIAUX DIV

Personal Author(s):

Report Date:

2005-07-13

Pagination or Media Count:

8.0

Abstract:

Robotic planetary missions use almost exclusively storable propellants. However, it is clear that the use LOXLH2 and LOXHC combinations will offer a tremendous payload gain for most robotic missions. The perceived complexity of cryogenic propulsion, the need of cryogenic propellants active refrigeration to eliminate boil-off losses and the high acceleration imparted to spacecraft structure by high thrust cryogenic engines have prevented the use of cryogenic propulsion for robotic missions. Elaborated thermal insulation techniques and the recent progresses in active refrigeration help to consider the use of cryogenic propulsion for interplanetary missions. The performance increase enable to consider new missions like Mars sample return without in orbit rendezvous or heavy rovers on Mars surface.

Subject Categories:

  • Inorganic Chemistry
  • Thermodynamics
  • Rocket Propellants

Distribution Statement:

APPROVED FOR PUBLIC RELEASE