Green Propulsion System in Space Defence Technology
Context:
A Green Propulsion System has been developed under the Technology Development Fund (TDF) scheme of DRDO.
Relevance:
GS-03 (Science and technology)
Green Propulsion System?
- It was developed by a Bengaluru-based start-up Bellatrix Aerospace Pvt Ltd (Development Agency).
- This project uses a 1N Class Green Monopropellant for altitude control and orbit keeping of microsatellites.
- This technology has successfully demonstrated in-orbit functionality on a payload launched by the PSLV C-58 mission.
Significance:
- This innovative technology has resulted in a non-toxic and environment-friendly propulsion system for low orbit space, unlike the conventional hydrazine-based propulsion systems that are hazardous and polluting.
- The system consists of an indigenously developed propellant, fill and drain valves, latch valve, solenoid valve, catalyst bed, drive electronics, etc.
- It is ideal for space missions with high thrust requirements.
PSLV-C58 mission:
- The PSLV-C58 mission, conducted by ISRO, successfully launched the X-ray Polarimeter Satellite (XPoSat) into a low inclination orbit on January 1, 2024.
- XPoSat represents ISRO’s maiden venture into dedicated scientific satellite missions aimed at studying X-ray polarization from celestial sources in space.
- The primary objective of this mission is to explore and analyze the polarization of intense X-ray emissions. X-rays, falling within the wavelength range of 0.01-10 nanometers, exhibit unique properties with perpendicular electric and magnetic fields.
- By measuring X-ray polarization, astronomers can gain valuable insights into the orientation and strength of magnetic fields within celestial bodies.
- This research is essential for understanding various cosmic phenomena such as pulsars, regions surrounding black holes, and other sources emitting X-rays in space.
