ISRO successfully tests indigenous cryogenic engine and What Is cryogenic Engine

ISRO successfully tests indigenous cryogenic engine and What Is cryogenic Engine

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  • Indian Space Research Organisation (ISRO) on 28 April 2015 successfully tested an indigenous cryogenic engine.
  • The powerful version of the cryogenic engine was tested successfully at ISRO’s propulsion complex at Mahendragiri in Tirunelveli district of Tamil Nadu.
  •  A team headed by Director D Karthikesan had led the testing.
  • This engine will allow launch vehicles to carry satellites of up to capacity of four tonnes in geostationary orbit.
  • It will also give boost to India’s interplanetary probes and manned space missions.
  • It is essential to master this technology for any space power as launching heavier satellites requires cryogenic engines even in the lower stages of the rocket.
  • It will also make India self-reliant in sending heavier satellites to the required orbits and eliminate need of dependence on foreign launch vehicles.
  • It should be noted that India sixth spacefarer after US, Russia, the European Space Agency, China and Japan to develop a cryogenic engine.
  • Earlier in January 2015, India had successfully launched GSLV-D5, the first successful launch vehicle with an indigenous cryogenic engine.
  • But it had capacity to launch satellites of up to two tonnes.
  • Now Indian Increased its Capacity to 4 Tonnes.
  • Now india Can Launch Heavy Satellites too In Space.

Facts about cryogenic engine

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  • A cryogenic rocket engine is a rocket engine that uses a cryogenic fuel or oxidizer, that is, its fuel or oxidizer (or both) are gases liquefied and stored at very low temperatures.
  • Notably, these engines were one of the main factors of NASA’s success in reaching the Moon by the Saturn Vrocket.[1]
  • A cryogenic engine is more efficient as it provides more thrust for every kilogram of propellant burnt.
  • Cryogenic fuels are extremely clean as they give out only water while burning.
  • The engine uses liquid oxygen at -2530 C and liquid hydrogen at -1830C
  • It can develop the thrust needed in the final state of the rocket to put satellites, weighing two tonnes or more, into a geosynchronous orbit.
  • Cryogenic engines that give the most thrust, are usually required for the last stage of the rocket because this stage provides 50% of the velocity of 10.2 kms per second needed at the point of injection of a satellite.
  • It is needed because outside the atmosphere there is no oxygen and most regular fuels need oxygen to burn.
  • India wanted a vehicle that would be bigger, lighter and more efficient than its workhorse Polar Satellite Launch Vehicle (PSLV) to launch 2.5-tonne class of satellites and put them into a geostationary transfer orbit at 36,000km from Earth’s surface.
  • In response ISRO started the Geosynchronous Satellite Launch Vehicle(GSLV) programme