- The ignition process is one of the most critical parts in the development of liquid rocket engine systems.
- The recent SCE ignition is achieved using a start fuel ampule which uses a combination of Triethyle Alumnide and Triethyle Boron developed by Vikram Sarabhai Space Centre (VSSC).
Semi-cryogenic engine (SCE)
- SCE utilizes liquid oxygen (LOX) as an oxidizer and refined kerosene as fuel.
- ISRO is developing a powerful SCE that produces a thrust of 2,000 kilonewtons (kN).
- This SCE is aimed at improving the payload capacity of the Launch Vehicle Mark-3 (LVM3) and future launch vehicles.
- Liquid Propulsion Systems Centre, Bengaluru, is ISRO’s lead center for the development of SCE.
- These engines offer significant advantages over traditional cryogenic engines.
- The cryogenic engine uses liquid Oxygen as oxidizer and liquid Hydrogen as fuel (both kept at very low temperatures). It is usually the last stage of rockets.
Advantages of SCE
- Easy storage and handling: Refined kerosene is lighter, needs less space and can be stored at a normal temperature.
- More thrust: They can carry huge weight to a higher altitude.
- Other benefits: They are eco-friendlier and more cost-effective compared to cryogenic engines.
