Tag: ISRO Successfully Tests Semi-Cryogenic Engine

Space ISRO Successfully Tests Semi-Cryogenic Engine  Context: Indian Space Research Organisation successfully conducted the 8th hot test of the Semi-Cryogenic Engine Power Head Test Article (PHTA) on 24 June 2026.  The test was carried out at the ISRO Propulsion Complex.  Power Head Test Article (PHTA) PHTA includes all engine systems except the thrust chamber.  It is used to validate the engine's performance before integrating the complete engine.  Highlights of the 8th Hot Test Successfully tested at 175-tonne thrust (88% of full capacity) for the first time.  Previous PHTA tests were conducted at: 94 tonne (47%) thrust, 120 tonne (60%) thrust  Objectives achieved:  Studied engine build up after pre burner ignition.  Demonstrated steady-state operation at higher thrust levels.  Successfully operated the main turbopumps delivering:  400 bar outlet pressure  500 bar outlet pressure  All engine parameters performed as predicted.  Significance of the Test Provides confidence for testing the engine at 200-tonne (100%) thrust level.  Marks a major milestone in the indigenous development of India's Semi-Cryogenic Engine.  Semi-Cryogenic Propulsion Stage (SC120) The SC120 stage is powered by the 2000 kN-class SE2000 engine.  It is being developed to replace the existing L110 core stage of the LVM3 launch vehicle.  Expected benefits:  Higher payload capacity  Improved operational efficiency  Enhanced launch performance for future missions.  Propellant Used Uses cleaner, non-toxic propellants:  Liquid Oxygen (LOX) as oxidizer.  Purified Kerosene (ISROSENE) as fuel.  Offers better performance and efficiency compared to conventional propulsion systems.  Strategic Importance Supports ISRO's roadmap to increase the payload capability of LVM3.  Combined with an uprated cryogenic upper stage, the semi-cryogenic propulsion system will significantly enhance India's heavy lift launch capability.  Strengthens India's self-reliance in advanced rocket propulsion technology and future space missions. About the Semi-Cryogenic Engine A Semi-Cryogenic Engine (SCE) is a type of liquid-fuel rocket engine that uses Liquid Oxygen (LOX) as the…