New technologies implemented in the design of a low-emission combustion chamber of a gas-turbine unit

Abstract


Metallist-Samara JSC has developed a fundamentally new design of a unified double-circuit burner of a low-emission combustion chamber (LECC) of a ground-based gas turbine unit (GTU), adapted for manufacturing with the help of an innovative technology by selective laser melting (SLM) of metal powders using CAD models. Several batches of burners were made and control studies were carried out characterizing the quality of manufacturing according to the established procedure. Deficiencies inherent in the SLM process were discovered, the main of which are: raised roughness, in particular, of the fuel channels of the main and duty zones; microporosity, microalloying; microcracks; instability of flow characteristics; local non-sintering zones of the layers grown on the burner body. As a result of the analysis of the state of the manufactured burners, research and refinements, it was found that most of the identified shortcomings can be eliminated during further development of the modes and parameters of the technological process. Currently, difficult engineering problems associated with the implementation of additive manufacturing technologies have been overcome.


About the authors

D. G. Fedorchenko

Joint-Stock company “Metallist-Samara”

Author for correspondence.
Email: dgfedorchenko@yandex.ru

Russian Federation

Candidate of Science (Engineering), Associate Professor
Chief Designer

Yu. I. Tsybizov

Joint-Stock company “Metallist-Samara”

Email: 2422490@mail.ru

Russian Federation

Doctor of Science (Engineering), Professor
Design Project Leader

D. D. Tyulkin

Joint-Stock company “Metallist-Samara”

Email: tyulkin.dmitriy@gmail.com

Russian Federation

Design Engineer

I. E. Vorotyntsev

Joint-Stock company “Metallist-Samara”

Email: vorotintsev15@yandex.ru

Russian Federation

Design Engineer

D. A. Zherelov

Joint-Stock company “Metallist-Samara”

Email: denis_samara_163@mail.ru

Russian Federation

Design Project Leader

A. S. Dulov

Joint-Stock company “Metallist-Samara”

Email: dulov.alexander@mail.ru

Russian Federation

Design Engineer

V. G. Smelov

Samara National Research University

Email: pdla_smelov@mail.ru

Russian Federation

Candidate of Science (Engineering), Assistant Professor

A. V. Sotov

Samara National Research University

Email: sotovanton@yandex.ru

Russian Federation

Candidate of Science (Engineering)
Assistant Lecturer

A. V. Agapovichev

Samara National Research University

Email: agapovichev5@mail.ru

Russian Federation

Senior Lecturer

References

  1. Yeliseev Yu.S., Fedorchenko D.G., Golanov S.P., Tsibisov Yu.I., Tyulkin D.D., Vorotyntsev I.E., Ivchenko A.V. Application of additive technology of selective laser melting (SLM) in designing a low emission combustion chamber of a gas turbine plant. Vestnik of Samara University. Aerospace and Mechanical Engineering. 2019. V. 18, no. 1. P. 174-183. (In Russ.). doi: 10.18287/2541-7533-2019-18-1-174-183
  2. Bantikov D.Yu., Vasil’ev V.I., Lavrov V.N., Tsibisov Yu.I., Kustov D.I., Sharikov B.Yu. Maloemissionnaya gorelka [Low emission burner]. Patent RF, no. 2442932, 2012. (Publ. 20.02.2012, bull. no. 5)
  3. Smelov V.G., Sotov A.V., Agapovichev A.V., Nosova E.A. Manufacturing of small-sized gas turbine engine combustion chamber parts from intermetallic alloy VKNA using selective laser melting. Materialy dokladov mezhdunarodnoy nauchno-tekhnicheskoy konferentsii «Problemy i perspektivy razvitiya dvigatelestroeniya» (June, 22-24, 2016, Samara). Part. 2. Samara: Samara University Publ., 2016. P. 113-114. (In Russ.)
  4. Andresson O., Brodin H., Graychen A., Navrotskiy V. Developing additive manufacturing technology for burner repair. Turbines and Diesels. 2017. No. 3. P. 4-11. (In Russ.)
  5. Sotov A.V., Pronichev N.D., Smelov V.G., Bogdanovich V.I., Giorbelidze M.G., Agapovichev A.V. Development algorithm of the technological process of manufacturing gas turbine parts by selective laser melting. Izvestiya Samarskogo Nauchnogo Tsentra RAN. 2017. V. 19, no. 4. P. 96-104. (In Russ.)

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