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Posted 08 May 2024

2 min read

  • 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.
  • Tags :
  • Semi-Cryogenic Engine
  • SCE-200
  • Launch Vehicle Mark-3
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