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ISRO’s new hybrid propulsion system

  • Category
    Science & Technology
  • Published
    23rd Sep, 2022


The Indian Space Research Organisation (ISRO) has successfully tested a hybrid motor,ISRO at Propulsion Complex (IPRC), Tamil Nadu. 


About the tested hybrid motor:

  • The motor used Hydroxyl-terminated polybutadiene (HTPB) as fuel and liquid oxygen (LOX) as the oxidiser.
  • While both HTPB and LOX are green, LOX is safer to handle.
  • The hybrid motor demonstrated ignition and sustained combustion for the intended duration of 15 seconds. 

Features of the motor:

  • The 30 kN hybrid motor is scalable and stackable.
  • The use of liquids helps throttling and the control over the flow rate of LOX enables the re-start capability.
  • Unlike solid-solid or liquid-liquid combinations, a hybrid motor uses solid fuel and liquid oxidiser.

ISRO Propulsion Complex (IPRC)

  • ISRO Propulsion Complex (IPRC) formerly Liquid Propulsion Systems Centre, Mahendragiri (LPSC-M), is located near Kanyakumari at Mahendragiri Hills, Tamil Nadu.
  • It is the major testing hub of ISRO's liquid propulsion systems. 
  • The role of IPRC is to carry out research for the development of liquid propulsion systems both for Satellites and Satellite Launch Vehicles.
  • It is responsible for the development, qualification and acceptance testing of sub-systems and systems for launch vehicles and spacecraft projects.

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