Why is it in the news?

• ISRO successfully conducted the first Pre-Burner Ignition trial for the semi-cryogenic engine (SCE)-200.
• The ignition process is crucial in the development of liquid rocket engine systems.

More about the news

About SCE:

• The SCE ignition was achieved using a start fuel ampule containing a combination of Triethylaluminum and Triethylboron, developed by the Vikram Sarabhai Space Centre (VSSC).
• The semi-cryogenic engine (SCE) utilizes liquid oxygen (LOX) as an oxidizer and refined kerosene as fuel.
• ISRO is developing a powerful SCE capable of producing a thrust of 2,000 kilonewtons (kN).
• The SCE aims to enhance the payload capacity of the Launch Vehicle Mark-3 (LVM3) and future launch vehicles.
• The Liquid Propulsion Systems Centre in Bengaluru serves as ISRO’s lead centre for SCE development.

Advantages:

• Refined kerosene is lighter than cryogenic fuels, requiring less space for storage. Additionally, it can be stored at normal temperatures, simplifying logistics and reducing infrastructure costs.
• Semi-cryogenic engines (SCEs) can generate significant thrust, enabling them to carry heavier payloads to higher altitudes compared to traditional cryogenic engines.
• SCEs offer environmental advantages, being more eco-friendly than cryogenic engines. Additionally, they are more cost-effective in terms of both production and operation, contributing to overall mission affordability.