Certificate of Registration Media number Эл #ФС77-53688 of 17 April 2013. ISSN 2308-6033. DOI 10.18698/2308-6033
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Correlation and spectral analyses of electrophysical characteristics of hydrocarbon fuel exhaust products in a model liquid rocket engine

Published: 07.12.2016

Authors: Yagodnikov D.A., Sukhov A.V., Iryanov N.Ya., Lapitsky V.I., Grishin S.A., Bunchuk A.A.

Published in issue: #1(61)/2017

DOI: 10.18698/2308-6033-2017-1-1574

Category: Aviation and Rocket-Space Engineering | Chapter: Thermal, Electric Jet Engines, and Power Plants of Aircrafts

The article presents the methodology and results of correlation and spectral analysis of electrophysical characteristics of kerosene and oxygen combustion products registered in the process of bench firing tests of the model liquid rocket engine (LRE) with the primary sensors' of the electromagnetic field. Mathematical apparatus and techniques of secondary processing arrays of electromagnetic field characteristics were developed for the frequency correlation analysis in the range of 0...28 kHz of an operating condition - the pressure in the combustion chamber and a defined parameter - the magnetic field strength of the combustion products. It is found (with correlation coefficient 0.863) that the dependence of magnetic field strength of the combustion products beyond the nozzle on the pressure in the model LRE combustion chamber is close to linear. This dependence can be used as a diagnostic feature for creating a high-speed emergency LRE protection system.

[1] Mazur M.M., Shorin V.N., Zhogun V.N., Pustovoyt V.I. et al. Akustoopticheskiy ramanovskiy spektrometr [Acoustooptical Raman spectrometer]. Akustoopticheskie, akusticheskie i rentgenospektralnye metody i sredstva izmereniy v nauke i tekhnike [Acoustic and X-ray spectral methods and means of measurement in science and technology]. VNIIFTRI Publ., 2005, pp. 16-26.
[2] Yagodnikov D.A., Rudinskiy A.V., Anikeev V.M. Nauka i obrazovanie - Science and Education, 2011, no. 11. Available at:
[3] Pushkin N.M., Kovalev V.I., Pushkov S.A. et al. Systemy kontrolya i beskontaktnoy diagnostiki rabochikh protsessov pri provedenii ognevykh ispytaniy ZhRD [Control systems and diagnosing contactless workflows when carrying out firing tests of liquid rocket engines (LRE)]. Trudy NPO "Energomash" [Proceedings of the SPA "Energomash"]. Moscow, 2012, no. 29, pp. 328-341.
[4] Galeev A.G., Denisov K.P., Ishchenko V.I. et al. Ispytatelnye kompleksy i eksperimrntalnaya otrabotka zhidkostnykh raketnykh dvigateley [Test complexes and experimental development of liquid rocket engines]. Moscow, Mashinostroenie Publ., 2012, 368 p.
[5] Volkov I.K., Zuev S.M., Tsvetkova G.M. Sluchaynye protsessy [Random processes]. Moscow, BMSTU Publ., 2000, 448 p.
[6] Preobrazhenskiy V.P. Teplotekhnicheskie izmereniya i pribory [Thermal measurements and devices]. Moscow, Energia Publ., 1978, 704 p.
[7] Grishin S.A., Klimentovskiy W, Yagodnikov D.A. Elektronika - Electronics, 2015, no. 12, pp. 51-54.