Bengaluru: The Indian Space Research Organisation (ISRO) said on Thursday that it has conducted a sea-level hot test of its CE20 cryogenic engine at the ISRO Propulsion Complex in Mahendragiri late last month. The announcement came after ISRO completed analysis of the test data. The breakthrough test, held on November 29, addressed key technical challenges associated with high area ratio nozzle testing, demonstrating ISRO’s advanced engineering capabilities.
The CE20 engine, developed by Isro’s Liquid Propulsion Systems Center (LPSC), has an innovative feature. Nozzle Protection System which overcomes previous complications in engine testing. During the test, the engineers performed a Multi-element igniteris a critical component for engine restart capabilities,” ISRO said.
He added that the achievement was particularly noteworthy because restarting a cryogenic engine is typically a complex process involving complex technical challenges. “The test revealed remarkable technical progress, with engineers activating only the first element of a multi-element igniter while monitoring the health of the other two elements. Both engine and facility performance were normal, and all engine performance requirements were met. The parameters were obtained as expected,” ISRO said.
Noting that the achievement underscores its expertise in developing the latest rocket propulsion technologies, the space agency said the CE20 engine has proven its versatility by powering its upper stage. LVM3 Launch Vehicle In six missions. “It was qualified for various thrust levels, including 19 tons, 20 tons for the current mission. The Gagneyan Missionand an impressive 22 tons operated for future launching capabilities. This flexibility highlights the engine’s potential to enhance India’s space exploration and satellite launch capabilities,” ISRO said.
Key test accomplishments include: successful testing of an engine with a nozzle area ratio of 100, evaluation of a multi-element igniter by activating only the first element, and verification of general engine and facility performance. The test marks an important step in the development of ISRO’s indigenous engine, demonstrating its ability to overcome the complex challenges of rocket propulsion.