DRDO’s green propulsion system shines in PSLV C-58 mission

New Delhi, Feb 1: In yet another achievement for space defence technology, a groundbreaking Green Propulsion System, developed by DRDO, has showcased its in-orbit functionality. This successful demonstration occurred on a payload launched as part of the PSLV C-58 mission.

The project, titled "1N Class Green Monopropellant thruster for altitude control and orbit keeping of microsatellite," was entrusted to Bengaluru-based start-up Bellatrix Aerospace Pvt Ltd, serving as the Development Agency. The Telemetry Data collected from the PSLV Orbital Experimental Module (POEM) at ISRO Telemetry,

Tracking, and Command Network (ISTRAC) in Bengaluru has undergone rigorous validation at ground level, surpassing all performance parameters.

This technology heralds a new era in space propulsion, offering a non-toxic and environmentally friendly solution for low-orbit space endeavours. The comprehensive system encompasses various components, including indigenously developed Propellant, Fill and Drain Valves, Latch valves, Solenoid valves, Catalyst beds, Drive Electronics, and more, making it ideal for space missions with high thrust requirements.

Under the guidance of the Project Monitoring & Mentoring Group of DRDO, the Development Agency successfully executed the entire project. The system's capabilities were demonstrated through pulsed mode and steady-state firing in a vacuum, passivation of residual propellant in outer space, propellant realization, and the establishment of a filling procedure, all accomplished under the TDF.

The Technology Development Fund (TDF), a flagship initiative of the Ministry of Defence executed by DRDO, aligns with the 'Make in India' initiative, focusing on
funding innovation in defence and aerospace, particularly benefiting start-ups and MSMEs.