Abstract
In Indian Space Research Organization (ISRO), the studies for the development of cryogenic propulsion were initiated in early 1980’s. The first cryogenic turbopump design (C12) in ISRO was made for 12 tonne (T) thrust engine identified for Geosynchronous Satellite Launch Vehicle (GSLV). The C12 turbopumps have undergone only initial developmental and design validation tests. The specific objective of attaining indigenous capability to launch Indian National Satellite-II (INSAT-II 2.5 T) spacecraft to geo transfer orbit (GTO) led to the need for developing a high-performance stage combustion (SC) cycle cryogenic engine. This cryogenic upper stage (CUS) engine forms the third stage of GSLV-MarkII (GSLV-MkII) launch vehicle (LV). The design check, development, extensive qualification and acceptance tests for these turbopumps were carried out and turbopumps are being used in GSLV-MkII LV. The need for launching 4 T class satellite to GTO led to the development of a high thrust 20 T cryogenic engine (CE-20). The design and development of these turbopumps were indigenously carried out. These turbopumps are rotor dynamically configured and its bearings and seals were indigenously developed. Turbopumps for CE-20 engine has successfully undergone development, qualification and acceptance tests and is being used in GSLV-MkIII vehicle. CE-20 engine turbopumps are the first indigenously designed, realised and qualified high speed turbopump in ISRO. To increase the payload capability of GSLV-MkIII LV and to meet ISRO’s future LV programme, Liquid Propulsion Systems Centre (LPSC), has taken up the development of a 200 T semicryogenic engine (SE-2000). Preliminary design review (PDR) of turbopumps are completed, hardware realisation and developmental tests are in progress.
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Abbreviations
- ISRO:
-
Indian Space Research Organisation
- LPSC:
-
Liquid Propulsion Systems Centre
- GSLV:
-
Geosynchronous Satellite Launch Vehicle
- INSAT:
-
Indian National Satellite
- GTO:
-
Geo transfer orbit
- CUS:
-
Cryogenic upper stage
- GG:
-
Gas generator
- SC:
-
Stage combustion
- C12:
-
12 Tonne thrust engine
- CE-20:
-
20 Tonne cryogenic engine
- SE-2000:
-
200 Tonne semicryogenic engine
- LOX:
-
Liquid oxygen
- LH2 :
-
Liquid hydrogen
- LN2 :
-
Liquid nitrogen
- GN2 :
-
Gaseous nitrogen
- PDR:
-
Preliminary design review
- NPSH:
-
Net positive suction head
- R&D:
-
Research and development
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Acknowledgement
Author wish to express sincere gratitude to Dr.K. Sivan Chairman, ISRO and Dr.V. Narayanan, Director, LPSC for their continuous support and guidance during developmental activities. Author also like to express sincere gratitude to assembly and testing team at ISRO Propulsion Complex (IPRC), Mahendragiri without their continuing support the development activities would not have been possible. The contributions of N.K.Gupta, T.M. Philip, P. Unnikrishnan Nair, Paul P. George, Sridhar Panigrahi and their team members are greatly acknowledged.
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Suresh, M.S. Development of Turbopump Systems for Cryogenic and Semicryogenic Propulsion Systems of ISRO. Trans Indian Natl. Acad. Eng. 6, 229–241 (2021). https://doi.org/10.1007/s41403-020-00189-5
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DOI: https://doi.org/10.1007/s41403-020-00189-5