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Gas Turbine Research Establishment

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Gas Turbine Research Establishment
Former name
Gas Turbine Research Centre (GTRC)
Established1959
Field of research
Aerogas turbine technology
DirectorShri. Dr. S V Ramana Murthy
LocationBengaluru, Karnataka, India
Operating agency
Defence Research and Development Organisation
WebsiteGTRE
GTRE GTX-35VS Kaveri
GTRE GTX-35VS Kaveri

Gas Turbine Research Establishment (GTRE) is a laboratory of the Defence Research and Development Organisation (DRDO). Located in Bengaluru, its primary function is research and development of aero gas-turbines for military aircraft. As a spin-off effect, GTRE has been developing marine gas-turbines also.

It was initially known as GTRC (Gas Turbine Research Centre), created in 1959 in No.4 BRD Air Force Station, Kanpur, Uttar Pradesh. In November 1961 it was brought under DRDO, renamed to GTRE and moved to Bengaluru, Karnataka.[1] GTRE has consistently faced critcism for failing to develop an indigenous jet engine for fighter aircraft.[2]

Products

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Principal achievements of Gas Turbine Research Establishment include:

  • Design and development of India's "first centrifugal type 10 kN thrust engine" between 1959-61.[3]
  • Design and development of a "1700K reheat system" for the Orpheus 703 engine to boost its power. The redesigned system was certified in 1973.[3]
  • Successful upgrade of the reheat system of the Orpheus 703 to 2000K.[3]
  • Improvement of the Orpheus 703 engine by replacing "the front subsonic compressor stage" with a "transonic compressor stage" to increase the "basic dry thrust" of the engine.[3]
  • Design and development of a "demonstrator" gas turbine engine—GTX 37-14U—for fighter aircraft. Performance trials commenced in 1977 and the "demonstrator phase" was completed in 1981. The GTX 37-14U was "configured" and "optimized" to build a "low by-pass ratio jet engine" for "multirole performance aircraft". This engine was dubbed GTX 37-14U B.[3]

GTX Kaveri

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Main article: GTRE GTX-35VS Kaveri

GTX-35VS Kaveri engine was intended to power production models of HAL Tejas.[4]

Defending the program GTRE mentioned reasons for delay including:

  • Non availability of state of the art wind tunnel facility in India
  • The technology restrictions imposed by US by placing it in "entities" list

Both hurdles having been cleared, GTRE intended to continue work on the AMCA (future generation fighter craft).

This program was abandoned in 2014.

Kaveri Marine Gas Turbine (KMGT)

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Kaveri Marine Gas Turbine is a design spin-off from the Kaveri engine, designed for Indian combat aircraft. Using the core of the Kaveri engine, GTRE added low-pressure compressor and turbine as a gas generator and designed a free power turbine to generate shaft power for maritime applications.[5]

The involvement of Indian Navy in the development and testing of the engine has given a tremendous boost to the programme. The base frame for KMGT was developed by private player Larsen & Toubro (L&T).[6]

Ghatak engine

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The engine for DRDO Ghatak will be a 52-kilonewton dry variant of the Kaveri aerospace engine and will be used in the UCAV (Unmanned Combat Aerial Vehicles). The Government of India has cleared a funding of ₹2,650 crores ($394 Million) for the project.[7]

Manik Engine

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Small Turbofan Engine (STFE), also known as Manik engine is a 4.5 kN thrust turbofan engine developed by GTRE to power Nirbhay series cruise missile and under development UAVs, Long range Anti-ship and Land Attack cruise missile systems.[8] In October 2022, STFE was successfully flight tested.[9]

DRDO is currently on search for a private production partner to mass produce Manik engine. It is estimated that 300 units will be produced over the course of five years. This amount could be allocated to the GTRE-identified industries. An Expression of Interest (EOI) will first identify two industries to supply three engines each over the course of eighteen months. After that, an RFI for mass production quantities will be issued.[10]

In April 2024, the DRDO designed Indigenous Technology Cruise Missile (ITCM), which incorporates the Manik engine, was successfully tested.[11] In July 2024, ABI Showatech India Pvt Ltd was awarded the contract to supply Casting Vane Low-Pressure Turbine (LPNGV) subcomponent of the engine as a part of the cruise missile programme. The low pressure turbine is "responsible for extracting energy from the exhaust gases to drive the fan and other compressor stages."[12]

The current STFE production plant is located near Thiruvananthapuram International Airport in Kerala for Limited Series Production for testing purpose of Nirbhay cruise missile.[13]

Testing

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The KMGT was tested on the Marine Gas Turbine test bed, an Indian Navy facility at Vishakhapatnam.[14] The engine has been tested to its potential of 12 MW at ISA SL 35 °C condition, a requirement of the Navy to propel SNF class ships, such as the Rajput class destroyers.[15]

Manufacturing

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The Ministry of Defence (MoD) has awarded Azad Engineering Limited a contract to serve as a production agency for engines designed by the Gas Turbine Research Establishment. Assembling and manufacturing what is known as an Advanced Turbo Gas Generator (ATGG) engine is the focus of the present long-term contract. This is meant to power various defense applications, such as the gas turbine engine that powers the Indian Army's fleet of infantry combat vehicles (ICVs) and tanks, the marine gas turbine engine (MGTE) for upcoming Indian Navy warships, and the GTX-35VS Kaveri turbofan engine for the Tejas fighter. By early 2026, Azad must begin delivering its first batch of fully integrated engines.[16] Using components including a 4-stage axial flow compressor, an annular combustor, a single-stage axial flow uncooled turbine, and a fixed exit area nozzle, the engine is built using a single-spool turbojet configuration. Azad Engineering will be essential to GTRE as a single source industry partner.[17]

In 2024, discussions began between Safran, a French defence and aerospace company, and DRDO's Aeronautical Development Agency and GTRE for future technology transfer and manufacturing of jet engines for India's 5th generation Advanced Medium Combat Aircraft (AMCA) programme.[18]

Industry collaboration

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For Combat Aircraft Engine Development Program, PTC Industries Limited, a Titanium recycling and aerospace component forging company has taken up a developmental contract for essential components on 6 December 2022. GTRE is expanding PTC Industries' capacity to produce vital titanium alloy aero engine and aircraft parts through investment casting – hot isostatic pressing technology. In cooperation with GTRE, a prototype of the Engine Bevel Pinion Housing has already been developed.[19][20]

Jet engine development criticism

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GTRE has been frequently criticised for its failure to develop an indigenous jet engine for fighter aircraft, a project the laboratory has been working on since 1982.[21] As of 2023, GTRE has not been able to overcome its engine development issues regarding metallurgy for turbine blades and other engine blade technologies, lack of a flying testbed and wind tunnel to validate engines above a 90 Kilo Newton (KN) thrust.[2]

References

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  1. ^ "About Us | Defence Research and Development Organisation - DRDO, Ministry of Defence, Government of India". www.drdo.gov.in. Retrieved 29 October 2022.
  2. ^ a b Sachdeva, A.K. (12 January 2023). "India's aero-engine industry needs reheat". Deccan Herald. Retrieved 26 November 2024.
  3. ^ a b c d e "Gas Turbine Research Establishment". Nuclear Threat Initiative. James Martin Center for Nonproliferation Studies, Middlebury Institute of International Studies. 16 November 2021. Retrieved 10 January 2024.
  4. ^ Gunston, Bill (Ed.) (15 June 2006). "GTRE Kaveri" in Jane’s Aero-Engines, Issue 14. Coulsdon, Surrey, UK: Jane's Information Group Limited. ISBN 0-7106-1405-5.
  5. ^ "DRDO develops marine gas turbine engine for Indian Navy". Newindpress.com. Retrieved 28 January 2012.[permanent dead link‍]
  6. ^ "India speeds up work on local marine gas turbine production - ET EnergyWorld". ETEnergyworld.com. Retrieved 10 January 2024.
  7. ^ Bazaar, The American (14 December 2015). "Project Ghatak: India to make indigenous stealth combat drones". The American Bazaar. Retrieved 8 July 2016.
  8. ^ "Nirbhay cruise missile to be tested with 'desi' engine in future". The Week. 16 April 2019. Retrieved 26 August 2019.
  9. ^ "Annual Report 2022-23" (PDF). Ministry of Defence. Government of India. Retrieved 30 March 2024.
  10. ^ @Defencematrix1 (11 November 2023). "Mass Production of STFE (Manik)! DRDO's GTRE has issued an Expression of Interest for the selection of Indian Industry Partners for the production of STFE expendable engine" (Tweet). Retrieved 20 July 2024 – via Twitter.
  11. ^ Rout, Hemant Kumar (19 April 2024). "ITCM flight-tested, India achieves success in indigenous cruise systems". The New Indian Express. Retrieved 25 November 2024.
  12. ^ alphadefense.in (15 July 2024). "Fortifying the Future: Strengthening the Supply Chain of India's Indigenous STFE". alphadefense.in. Retrieved 20 July 2024.
  13. ^ "Land proposed in Nettukaltheri to relocate BrahMos Aerospace". The Times of India. 29 October 2024. ISSN 0971-8257. Retrieved 1 November 2024.
  14. ^ "Demonstration of 12 MW Kaveri Marine Gas Turbine for Indian Navy | Frontier India - News, Analysis, Opinion". Frontier India. 17 July 2008. Archived from the original on 18 March 2012. Retrieved 28 January 2012.
  15. ^ Kar, Sitanshu (17 July 2008). "Modified Kaveri Engine to Propel Indian Navy Ships". Press Information Bureau, Government of India. Retrieved 12 January 2019.
  16. ^ Shukla, Ajai (23 May 2024). "Azad Engineering to build fully integrated advanced turbo engine for DRDO". Business Standard. Retrieved 1 September 2024.
  17. ^ "Azad Engineering bags contract for advanced turbo gas generator engine from DRDO lab GTRE". The Hindu. 23 May 2024. ISSN 0971-751X. Retrieved 1 September 2024.
  18. ^ Peri, Dinakar (26 January 2024). "Jet engine deal with France will give 100% access to technology, says Indian envoy". The Hindu. ISSN 0971-751X. Retrieved 25 November 2024.
  19. ^ "PTCIL to develop critical components for DRDO-GTRE's Combat Aircraft Engine development program". Business Standard. 6 December 2022. Retrieved 16 September 2024.
  20. ^ Agarwal, Smita. "PTC Industries Limited committed towards supply of Critical Components for GTRE-DRDO's Aero Engines" (PDF). PTC Industries. Advanced Manufacturing & Technology Centre. Retrieved 16 September 2024.
  21. ^ Philip, Snehesh Alex (9 June 2022). "Why likely €1 bn French deal is a reminder of India's failure to build indigenous jet engine". ThePrint. Retrieved 26 November 2024.
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