Semi Cryogenic Engine:
Indian Space Research Organisation (ISRO) successfully conducted a short-duration hot test of its semi cryogenic engine at the ISRO Propulsion Complex (IPRC), Mahendragiri.
- A short-duration hot test involves briefly firing the engine using actual fuel to verify its ignition and performance under real operating conditions.
- This test marks the 2nd milestone, following the first successful hot test conducted in March 2025.
- Semi Cryogenic Engine is a liquid rocket engine that uses liquid oxygen (LOX) as an oxidizer and refined kerosene (RP-1) as fuel.
- Designed to power the booster stages of future heavy-lift launch vehicles, semi-cryogenic engine’s LOX-kerosene combination offers higher density impulse than cryogenic systems, enhancing propulsion performance.
- Additionally, kerosene is cheaper and easier to handle than liquid hydrogen, reducing costs and simplifying operations.
- The successful development of this semi-cryogenic engine will boost ISRO’s payload capacity and support future launch vehicles like the Next Generation Launch Vehicle (NGLV).
- NGLV : It is a cost-efficient, reusable heavy-lift rocket being developed by ISRO, designed to carry up to 30 tonnes to Low Earth Orbit, with a reusable first stage.
