In a significant stride towards bolstering India's space capabilities, ISRO, led by the Liquid Propulsion Systems Centre (LPSC) with collaborative support from other launch vehicle centers, is pushing forward the development of a semi-cryogenic propulsion system. This pioneering system aims to amplify the payload capacity of the Launch Vehicle Mark-3 (LVM3) and future launch vehicles by harnessing a robust 2,000 kN thrust semi-cryogenic engine fueled by a combination of liquid oxygen (LOX) and kerosene.
A pivotal accomplishment in this ambitious project is the successful ignition of the semi-cryo pre-burner, achieved through rigorous testing at the Isro Propulsion Complex (IPRC) in Mahendragiri. This milestone marks a crucial step in initiating the semi-cryogenic engine, demonstrating India's expanding expertise in advanced propulsion technologies.
The ignition process itself utilizes a novel start fuel ampule, leveraging a blend of Triethyle Alumnide and Triethyle Boron, developed by the Vikram Sarabhai Space Centre (VSSC). This unique fuel combination represents a breakthrough innovation, deployed for the first time in an ISRO engine, underscoring India's commitment to cutting-edge research and development in aerospace engineering.
Looking ahead, ISRO is poised to progress with the development and testing phases, focusing on the engine powerhead test article and the fully integrated engine. Concurrent efforts are also underway towards realizing a semi-cryo stage equipped with a substantial 120 tons of propellant loading, further propelling the project towards its envisioned objectives.
This endeavor not only reinforces ISRO's stature as a trailblazer in space exploration but also highlights its strategic efforts to enhance indigenous capabilities in propulsion technology. As ISRO continues to chart new frontiers in space, these advancements pave the way for future missions that will redefine India's role in the global space arena.
