ISRO Conducts Two More Hot Tests For Gaganyaan’s Propulsion System

The space agency said on Thursday Informed that the Indian Space Research Organisation (ISRO) has successfully carried out two more hot tests on the Gaganyaan Service Module Propulsion System (SMPS) at the ISRO Propulsion Complex (IPRC) in Odisha,

Hot tests conducted to check the efficiency

The second and third hot tests in the Service Module-System Demonstration Model (SM-SDM) phase-2 series were carried out on Wednesday. The Liquid Propulsion System Centre (LPSC) at Bengaluru and Valiamala, Thiruvananthapuram, is responsible for the design and development of SMPS. On July 19, the first hot test was carried out. According to an ISRO official, the thrusters were tested while being used in both continuous and pulse mode in accordance with the mission profile.
“The initial hot test, which lasted for 723.6 second, focused on demonstrating orbital module injection, and the calibration burn of 100 N thrusters and liquid apogee motor (LAM) engines. The calibration burn was essential to identify and isolate any non-operational engines. The LAM engines and reaction control system (RCS) thrusters performed as expected.” ISRO said in a statement.

The space agency added, “The latter hot test, with a duration of 350 seconds, aimed to demonstrate the circularisation of the Orbital Module to achieve the final orbit.
According to scientists from Isro, during the most recent test, the RCS thrusters were fired in pulse mode while the LAM engines ran continuously. To illustrate de-boosting requirements and off-nominal mission circumstances, three additional hot tests are planned. These experiments will strengthen the propulsion system’s performance validation and refinement, ensuring that it is prepared for the impending Gaganyaan mission.

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In an effort to further evaluate and improve the performance of the propulsion system that would be used to launch India’s first human spaceflight mission, Gaganyaan, ISRO has successfully completed two further tests.
ISRO has successfully carried out two more tests as part of plans to further validate and refine the performance of the propulsion system that would be used to launch India’s first human spaceflight mission Gaganyaan.

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In Tamil Nadu on Wednesday the “hot tests” on Gaganyaan Service Module Propulsion System (SMPS) were conducted at the ISRO Propulsion Complex, Mahendragiri. The SMPS is designed and developed by the Liquid Propulsion System Centre located at Bengaluru and Valiamala, Thiruvananthapuram.