New Milestone in CE20 Cryogenic Engine Testing

On 12th December 2024, ISRO announced that it has successfully conducted a critical sea-level hot test of its CE20 cryogenic engine at the ISRO Propulsion Complex in Mahendragiri, Tamil Nadu.

Key Points

Engine Features: The CE20 engine features a nozzle area ratio of 100 and is powering the upper stage of the LVM-3 (Launch Vehicle Mark-3).
Milestone for Gaganyaan: The engine, previously used in six LVM3 missions, was recently qualified for the Gaganyaan mission with an uprated thrust of 22 tonnes, enhancing payload capacity.
Restart Capability: This test validated a multi-element igniter essential for restart capability in vacuum conditions.
Innovative Testing Solutions: To address challenges like flow separation at sea level, ISRO developed a cost-effective 'Nozzle Protection System,' simplifying the testing process compared to high-altitude test facilities.
Future Implications: This success is a significant step toward advancing ISRO's cryogenic propulsion technology, with applications in future missions.