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The International Conference on
Aerospace System Science and

JULY 18-19, 2024


Invited speech

Dr. Dmitry Strelets
Ph.D. of Technical Science (Aircraft Design Engineering) at Moscow Aviation Institute
Research Interest: Design and certification of aviation technology, mathematical  modeling, optimization of complex technical systems.

Speech Title: Study of the effectiveness to use cryogenic fuels in transport aviation with gas turbine engines

Abstract:   The world's leading aircraft and engine manufacturing companies are actively working in all areas of development that can improve fuel efficiency, environmental friendliness, reliability, operational safety, and, in final, the competitiveness of aviation technology. Despite the fact that almost all the main elements and components of modern aircraft engines have reached the limits of technical perfection, reserves have been found in increasing engine cycle parameters, further integration of the power plant and aircraft, and in the transition to new alternative fuels.

One of the alternative fuels in aviation is cryogenic fuel. Cryogenic fuel has a number of features compared to aviation kerosene: it has a greater cooling capacity and serviceability before combustion, and also has a higher combustion value than kerosene. Thanks to this, cryogenic fuels can significantly improve aircraft performance.

For Russia, the most profitable is the use of liquefied natural gas (LNG), mainly consisting of methane, whose reserves account for 25% of proven world reserves as of 2018.

The results of the study provide a description of the concept, methods and complex of mathematical models used to assess the effectiveness of using LNG in the “aircraft – power plant – fuel” system. The results of calculations of efficiency indicators for transport aircraft and flight range are presented, taking into account the effect of replacing jet fuel with LNG on the characteristics of the power plant and aircraft. The regularities and features of the operation of a cryogenic fuel system are presented based on computational studies of several flight missions of a cargo-passenger aircraft powered by liquefied natural gas, and the results of studies of the thermal state of cryogenic fuel tanks are also presented. The research was carried out using mathematical models and a set of programs that solve the problem of heat transfer with boundary conditions of the first kind. The influence of the tank shape on the mass of fuel discharged through the safety valve into the environment is shown.  


Short-bio: Profound knowledge in each aircraft engineering area; successfully realized 15 + innovative projects; academic supervisor for Ph.D. candidates ; key speaker at international conferences and Airspace Science Weeks (PRC, Canada, Russia, Germany, France, Italy) ; development of academic syllabuses for master degree students ; taught 50 + seminars to over 500 students in «Aircraft design»; more then 25 years of experience in world Top 5 Design Bureaus (MiG, Sukhoi)  

Education and Credentials:   

• Deputy Head of the Design & Research Scientific Center at the Sukhoi design Bureau;

• Head of Research and Development Department of MAI ( on charge on more then 300 engineers );

• Director of World Class Scientific Center «Supersonic»;

• Deputy Head of Mathematical Modeling Center;

• PhD of Technical Sciences;

• Honorable Aircraft Engineer 2018;

• Author of more than 100 published scientific papers.