Science and Technology

The launch of Indian area analysis Organisation (ISRO)’s much-anticipated fixed earth observation satellite, EOS-03, resulted in AN unsuccessful mission when the GSLV’s refrigerant higher stage did not ignite in area and carry the payload to its selected orbit.
What is a cryogenic engine?

·        Cryogenic engines are typically very powerful and carry liquid propellant at extremely low temperatures.

·        They area unit complicated however extremely economical and supply higher thrust for every metric weight unit of fuel burnt compared to the normal solid and liquid propellant rocket stages.

·        Cryogenic engines were a vital a part of National physical science and area Administration (NASA)’s Phoebus Apollo missions to the moon, and were conjointly utilized by the GSLV for the Chandrayaan-2 mission.

·        Only six countries have developed their own cryogenic engines: the US, France/European Space Agency, Russia, China, Japan, and India. Cryogenic engine typically makes use of liquid oxygen (LOX), which liquifies at -183 deg C, and liquid hydrogen (LH2), which liquefies at -253 deg C.

·        LH2 acts as the fuel while LOX acts as the oxidiser that explosively reacts with the hydrogen, producing thrust.

·        When the engine ignites, the two liquids are pushed into a combustion chamber by booster pump continuously.

·        ISRO’s cryo stage, called the C25, came after the successful flights of the earlier versions developed for previous GSLV launchers.

·        It was designed by the Liquid Propulsion Systems Center, together with Vikram Sarabhai house Centre, ISRO Propulsion complicated and Satish Dhawan house Centre. C25’s tanks carry over twenty seven,000 metric weight unit of fuel and fireplace for about 720 seconds.

·        During this point, the engine develops a thrust of seventy three.55kN in vacuum. Impact of failure of refrigerant engine Missions like Gaganyaan and Chandrayaan-3 are launched on GSLV Mk-III, a additional advanced version of the GSLV rocket thats designed to hold a lot of heavier payloads into house.

·        GSLV Mk-III too uses AN indigenously-developed refrigerant engine within the higher stage, but, in contrast to the one in Mk-II, this is often not a reverse-engineered Russian engine.

·        Instead, the cryogenic engine used in GSLV Mk-III, called CE20, has been the result of over three decades of research and development, starting from scratch, and uses a different process to burn fuel.

·        It is closer to the designs used in the Arianne rockets that were used by ISRO earlier to send its heavier satellites into space.