Indian Space Research Organisation has successfully tested it’s indigenously designed Cryogenic Engine at Mehendragiri, Tirunelveli, Tamil Nadu. Cryogenic engines used before are Russian one. US and Russia only had self developed cryogenic engine. This new cryogenic engine will be used in GSLV D-3 mission next year.
Cryogenic engines are rocket motors designed for liquid fuels that have to be held at very low ‘cryogenic’ temperatures, as they would otherwise be gas at normal temperatures.
Normally used fuels are hydrogen and oxygen which are held at a low temperature of 20 Kelvin and 80 Kelvin respectively to remain in liquid form. The cryogenic engine develops a thrust of 73 kilo Newtons (kN) in vacuum with a specific impulse of 454 seconds (7.56 minutes) and can carry 2.2 tonnes.
Working on a staged combustion cycle with an integrated turbo-pump, the engine will have 42,000 rotations per minute (rpm). It also has two steering engines developing a thrust of 2 kN each to enable three-axis control of the launch vehicle during the flight mission.
The cryogenic engine will be integrated with propellant tanks, stage structures and associated feed lines of the launch vehicle for the flight mission in April next from the spaceport at Sriharikota, about 80 km north of Chennai.
The central government Friday approved the development of semi-cryogenic engines for space transportation at a cost of Rs.1,798 crore (approx Rs.18 billion) with a foreign exchange component of Rs.588 crore (Rs.5.88 billion).The semi-cryogenic engines will facilitate applications for future space missions like the reusable launch vehicle, the unified launch vehicle and the vehicle for inter-planetary missions.
(With IANS inputs)



All over our country we’re witness severe shortage of power. Our local consumption and industrial consumptions has also increased very rapidly. But our power production is gradually decreasing due to decline generation from Wind energy. Tamil Nadu and Gujarat contribute for the major portion of our wind energy production. Northern states of India are worst hit than Southern states. Tamil Nadu government took several steps to solve this crisis.