CRYOGENIC ENGINE CE 20

Cryogenic engine CE 20 is india's first gas generator engine . The engine produces a nominal thrust of 200 KN , but has an operating thrust range between 180 to 220 KN .The  combustion chamber burns liquid hydrogen and liquid oxygen at 6 mpa . ISRO tested CE 20 on Apr 28 2015 at mahendragiri test facility and had successful duration of 635 seconds . It was again tested for endurance nearly 800 seconds at mahendrgiri complex .

Specifications :

Operating cycle : Gas generator

Propellant combination : Liquid oxygen / Liquid hydrogen

Thrust nominal : 200 KN 

Operating range : 180 - 220 KN

Chamber pressure : 6 mpa

Engine mixing ratio : 5.05

Engine specific impulse :  443 ± 3 sec

Engine burning duration : 595 sec

Total flow rate  : 462 kg |sec

Nozzle area ratio : 100

Mass :588 kg