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ISRO conducts flight test of cryogenic engine

Published on March 01, 2023

Current Context: ISRO has successfully test fired the CE-20 cryogenic engine of its moon mission rocket on February 24 at its Propulsion Complex (IPRC) at Mahendragiri in Tamil Nadu³. The engine will be used for the third stage of India's Geosynchronous Satellite Launch Vehicle Mark III (GSLV Mk III) that will launch Chandrayaan-3.

ISRO conducts flight test of cryogenic engine
  • A cryogenic engine is a type of rocket engine that uses very low-temperature liquid propellants such as liquid hydrogen and liquid oxygen. These propellants are stored at extremely low temperatures and are pumped into a combustion chamber where they ignite and produce thrust.
  • A cryogenic engine works on the principle of reaction thrust, which means that it throws mass in one direction and relies on the opposite force in the other direction.
  • According to The Week, ISRO has successfully conducted the key test on cryogenic engine for Chandrayaan-3 mission on February 28 at its Liquid Propulsion Systems Centre (LPSC) at Valiamala near Thiruvananthapuram. The test was carried out for a planned duration of 25 seconds and demonstrated all performance parameters
Some of the advantages of using a cryogenic engine are:
  • It is more environmentally-friendly than other options because it produces less greenhouse gases and pollution.
  • It is non-toxic and non-corrosive, which makes it safer to handle and store.
  • It has a higher mass flow rate than fossil fuels, which means it produces more thrust and power with less fuel consumption.
  • It has a high-specific impulse, which means it can achieve higher speeds and altitudes with less propellant mass.


Q.1 What is the name of the cryogenic engine that ISRO tested for its moon mission rocket? 
a. CE-10
b. CE-20
c. CE-30
d. CE-40
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