Omsk Scientific Bulletin. Series «Aviation-Rocket and Power Engineering» https://journals.omgtu.ru/index.php/onv_ariem <p><strong>ISSN 2588-0373 (Print). ISSN 2587-764X (Online) </strong></p> <p><strong>Periodicity </strong>— <strong>4</strong> Issues per Year</p> <p><strong>Publisher:</strong> Omsk State Technical University, Omsk, Russia</p> <p><strong>Subscription index in the catalog of subscription editions of the «Pressa Rossii»: </strong>80583 </p> <p>The journal is included in the database of the <strong>Russian Scientific Citation Index.</strong></p> <p>The journal is included in the List of Leading Peer-reviewed Scientific <br />Journals and Publications of<strong> Higher Attestation Commission (HAC). </strong>Сategory<strong> K2</strong></p> <p><strong>Omsk Scientific Bulletin. Series «Aviation-Rocket and Power Engineering»</strong> is a scientific peer-reviewed journal on whose pages the main results of scientific research of scientists and practitioners not only of the Omsk region, but other regions of Russia and foreign countries are represented.</p> ru-RU <p>Non-exclusive rights to the article are transferred to the journal in full accordance with the Creative Commons License BY-NC-SA 4.0 <a href="https://creativecommons.org/licenses/by-nc-sa/4.0/deed.ru">«Attribution-NonCommercial-ShareAlike 4.0 Worldwide License (CC BY-NC-SA 4.0»)</a></p> <p><img src="https://i.creativecommons.org/l/by-nc-sa/4.0/88x31.png" alt="Creative Commons License" /></p> onv@omgtu.ru (Федорчук Марина Федоровна) korolevvalery37@gmail.com (Королев Валерий Павлович) Mon, 30 Jun 2025 05:02:57 +0000 OJS 3.3.0.8 http://blogs.law.harvard.edu/tech/rss 60 Comprehensive techno-economic analysis of solar photoelectric materials of different generations https://journals.omgtu.ru/index.php/onv_ariem/article/view/1903 <p>A possible solution to the global energy crisis is to use sunlight to generate electricity. Solar cells that convert solar energy into electricity have to be reliable and cost-effective to compete with conventional energy sources. The aim of the article is to describe the different generations of photoelectric cells and the current and future technologies used in photoelectric systems. The article covers the basics of photoelectricity, including the principle of operation and basic features. All generations of solar cells are reviewed. Special attention is focuses on the efficiency of converting sunlight into electricity, used materials, and economic analysis. As photoelectric technology advances, opportunities for efficiency improvements, lower manufacturing costs, and innovation are also demonstrated. The paper analyzes the current limitations of modern photoelectric technologies and suggests possible ways to meet them based on the recent scientific developments.</p> Duyun Tatyana Aleksandrovna, Elmnifi Monaem Hamad Copyright (c) 2025 Дуюн Татьяна Александровна, Элмнфи Монаем Хамад https://journals.omgtu.ru/index.php/onv_ariem/article/view/1903 Mon, 30 Jun 2025 00:00:00 +0000 Criteria base of the jet ejector operating process https://journals.omgtu.ru/index.php/onv_ariem/article/view/1929 <p>The article considers the question of creating a criterion base of the jet ejector operating process on the basis of a closed mathematical model. The basic parameters affecting the degree of ejection and total pressure rise at the discharge from the mixing chamber of the jet ejector are determined. Finding dimensionless complexes using the modeling theory allows determining the criterion base of the operating process of the jet ejector. At full geometrical similarity, without considering heat exchange and using “natural” and “model” gas, the number of similarity criteria is reduced to Reynolds number.</p> Kuznetsov Victor Ivanovich, Kuznetsova Irina Olegovna, Shpakovskiy Denis Danilovich Copyright (c) 2025 Кузнецов Виктор Иванович, Кузнецова Ирина Олеговна, Шпаковский Денис Данилович https://journals.omgtu.ru/index.php/onv_ariem/article/view/1929 Mon, 30 Jun 2025 00:00:00 +0000 Study of the small multicopters bladeless propulsors characteristics https://journals.omgtu.ru/index.php/onv_ariem/article/view/1935 <p>The study examines the fundamental technical characteristics of bladeless propulsors intended for advanced turbofan propulsion systems in multicopter unmanned aerial vehicles. The research identifies optimal aspect ratios that maximize thrust and thrust efficiency while analyzing the impact of fan radius and annular gap thickness on propulsion efficiency under constant flow rate and length conditions. The findings indicate that the most efficient configuration features a fan radius of 175 mm, a length of 150 mm, and an air mass flow rate of 0,3 kg/s, yielding an exit Mach number of 0,42. This configuration generates a thrust of 44 N while maintaining high-speed jet momentum conservation at 92 %, under a total inlet pressure of 17,800 Pa.</p> Bryzgunov Pavel Aleksandrovich, Grigorov Vladislav Alekseevich, Grishin Leonid Evgenevich, Ivanova Evgenia Aleksandrovna Copyright (c) 2025 Брызгунов Павел Александрович, Григоров Владислав Алексеевич, Гришин Леонид Евгеньевич, Иванова Евгения Александровна https://journals.omgtu.ru/index.php/onv_ariem/article/view/1935 Mon, 30 Jun 2025 00:00:00 +0000 Review of electric rocket engines for small spacecraft propulsion systems https://journals.omgtu.ru/index.php/onv_ariem/article/view/1939 <p>The article analyzes the current state of global development of low-energy plasma propulsion systems for guided small spacecraft. The aim of the research is to review the main types and constructions of electric rocket engines, to identify the problems arising in the development process affecting the energy and design features. One of the most demanded and promising directions in the field of propulsion for small spacecraft is ion engines. The use of electrical energy to create propulsion, as well as high-frequency electromagnetic radiation, allows minimizing power losses. A key advantage of plasma propulsion units is this utilization of energy in the propulsion creation process. The use of units of pneumohydraulic systems is the main way of supplying the operating body and their replacement by a wick infiltrated with organosilicon oil allows minimizing the mass of the propulsion system and increasing reliability.</p> Kolganov Ivan Veniaminovich Copyright (c) 2025 Колганов Иван Вениаминович https://journals.omgtu.ru/index.php/onv_ariem/article/view/1939 Mon, 30 Jun 2025 00:00:00 +0000 Test results of a two-zone combustion chamber in a gas turbine engine https://journals.omgtu.ru/index.php/onv_ariem/article/view/1934 <p> </p> <p>The paper presents the results of tests of the NK-16ST engine with an experimental two-zone combustion chamber. The design features of the combustion chamber, the engine fuel system, the testing methodology and the results of measuring the environmental characteristics are described. The combustion chambers differed in the design of the main zone burners. Based on the results of the work, a combustion chamber version with a burner having an axial swirler at the nozzle outlet is selected. It provides low nitrogen oxide emissions compared to other tested chambers.</p> Baklanov Andrey Vladimirovich, Markushin Andrey Nikolayevich Copyright (c) 2025 Бакланов Андрей Владимирович, Маркушин Андрей Николаевич https://journals.omgtu.ru/index.php/onv_ariem/article/view/1934 Mon, 30 Jun 2025 00:00:00 +0000 Profiling of operating elements of gerotor screw compressor https://journals.omgtu.ru/index.php/onv_ariem/article/view/1975 <p>The gerotor screw compressor with internally meshing rotors is an innovative type of machines of the volumetric principle of compression of various gas media, which has a significant potential for expanding the applications of screw compressor technology. The main component of this compressor model is an internally meshed screw pair, the methodology of profiling of which has remained insufficiently studied. The paper presents a computational model for the operating element profiling based on the theory of cycloidal meshing, including the generation of front profile coordinates and helical formations for rotors with different profile types. The article develops an algorithm for generating geometric 3D models using solid modeling software.</p> Pronin Vladimir Aleksandrovich, Belov Pavel Andreevich, Tsvetkov Vadim Alexandrovich, Dzhumaev Mohammed Khemraevich, Egorov Pavel Alekseevich Copyright (c) 2025 Пронин Владимир Александрович, Белов Павел Андреевич, Цветков Вадим Александрович , Джумаев Мухаммед Хемраевич, Егоров Павел Алексеевич https://journals.omgtu.ru/index.php/onv_ariem/article/view/1975 Mon, 30 Jun 2025 00:00:00 +0000 On the applicability of semi-empirical methods for calculating the operating processes of a single-stage long-stroke reciprocating compressor in the sphere of wet steam https://journals.omgtu.ru/index.php/onv_ariem/article/view/2005 <p>The issues of applicability of well-known semi-empirical methods for calculating the operating processes of low-speed reciprocating compressors for the theoretical study of these processes in the field of wet steam are considered. It is shown that there are significant uncertainty factors in such calculations, suggesting the need to create new semi-empirical calculation methods and the inapplicability of existing ones. The latter is determined by the lack of reliable experimental results, both in terms of the empirical dependencies used to determine the instantaneous heat transfer coefficient in the flow part of a low-speed reciprocating compressor, and in terms of verification of the obtained computational and theoretical results. It is shown that the use of simplifying assumptions such as the absence of leakage through leaks in the working chamber; the constancy of the heat transfer coefficient in the cylinder during the compression process; the equality of the temperature of the cylinder mirror and the boiling point of the working fluid; the calculation of the heat transfer coefficient based on unverified empirical dependencies obtained for other technical facilities, and a number of others are unacceptable, since they lead to unacceptable results. At the same time, given the theoretical attractiveness of the issue under consideration, it can be assumed that in the future a wide range of experimental and theoretical studies of low-speed reciprocating compressors workflows in the field of wet steam, including those aimed at determining empirical dependencies for calculating heat transfer coefficients in the flow part of the low-speed reciprocating compressors stage.</p> Yusha Vladimir Leonidovich Copyright (c) 2025 Юша Владимир Леонидович https://journals.omgtu.ru/index.php/onv_ariem/article/view/2005 Mon, 30 Jun 2025 00:00:00 +0000 Experimental study of the features of the working processes of low-speed intensively cooled long-stroke piston compressor stages https://journals.omgtu.ru/index.php/onv_ariem/article/view/1925 <p>Unique elements of the working processes of a low-speed piston compressor, not typical for high-speed piston machines, are considered. It has been experimentally proven that under operating modes with an elevated gas temperature at the inlet of a low-speed compressor (above the temperature of the cooling medium), a noticeable decrease in the gas temperature is observed during the suction process. That is, the first part of the cycle in the stage, the gas is cooled, and the beginning of the compression process will occur at a lower temperature than the gas temperature at the standard suction point. In addition, the assumption that when a low-speed compressor operates on refrigerants, operating modes in the wet steam region are possible, in which condensation of the working fluid is observed at the end of the compression process, has been experimentally confirmed. Such operating modes can be used in compact low-capacity refrigeration machines with a decrease in the weight and size parameters of the condenser unit.</p> <p>The conducted studies have shown the need to verify the calculation methodology for the types of piston compressors considered in the article and to refine the latter taking into account the features of the working processes of low-speed piston machines.</p> Busarov Sergey Sergeevich, Nedovenchany Aleksey Vasilievich, Kobylskiy Roman Eduardovich, Busarov Igor Sergeevich Copyright (c) 2025 Бусаров Сергей Сергеевич, Недовенчаный Алексей Васильевич, Кобыльский Роман Эдуардович, Бусаров Игорь Сергеевич https://journals.omgtu.ru/index.php/onv_ariem/article/view/1925 Mon, 30 Jun 2025 00:00:00 +0000 Obtaining gas dynamic characteristics of the circulation centrifugal compressor of hydrogen-containing gas based on the analysis of actual operating modes https://journals.omgtu.ru/index.php/onv_ariem/article/view/1913 <p>The analysis of actual operating modes of a centrifugal compressor providing circulation of hydrogencontaining gas in a reactor block of catalytic isomerization of metaxylene and ethylbenzene into orthoxylenes and paraxylenes has been performed. The technological process, as well as the state and properties of the catalyst in the reactor block determine the concentration of hydrogen and the molecular weight of the gas mixture, which, accordingly, leads to the need to regulate the operating modes of the centrifugal compressor by throttling at the suction. The calculation method of the gas-dynamic characteristics of the compressor when regulating by throttling at the suction has been clarified, taking into account the features of operation in the circulation mode, namely, the change in pressure before the throttling device. It has been established that when regulating by throttling at the suction of a circulation centrifugal compressor, the function of the pressure ratio on the volumetric productivity changes. It is established that the actual surge limit is shifted relative to the theoretical limit to the left, into the zone of the descending part of the pressure characteristic.</p> Vanyashov Aleksandr Dmitriyevich, Bychkov Danil Vitalievich, Belikov Alexander Valerievich Copyright (c) 2025 Ваняшов Александр Дмитриевич, Бычков Данил Витальевич, Беликов Александр Валерьевич https://journals.omgtu.ru/index.php/onv_ariem/article/view/1913 Mon, 30 Jun 2025 00:00:00 +0000 Methods of considering the balance piston line for calculating a centrifugal compressor performance map https://journals.omgtu.ru/index.php/onv_ariem/article/view/1912 <p>The calculation of a centrifugal compressor is a complex iterative process in which various factors must be taken into account. One of these factors is the consideration of the balance piston line, which can significantly affect the performance map and efficiency of the compressor. The article considers the consideration of a two-phase overflow, its effect on the parameters of the main gas flow inside the passage. A technique is presented that makes it possible to calculate the performance map of a compressor, taking into account in each operating mode: the balance piston overflow, an increasing in the temperature of the gas at the inlet to the flow part, as well as the resistance of the pipeline to the balance piston line. This technique improves the accuracy of mathematical modeling of the flow part of a centrifugal compressor in both design and nondesign operating modes.</p> Liubimov Alexander Nikolayevich, Lakhman Artemiy Gennadievich Copyright (c) 2025 Любимов Александр Николаевич, Лахман Артемий Геннадьевич https://journals.omgtu.ru/index.php/onv_ariem/article/view/1912 Mon, 30 Jun 2025 00:00:00 +0000 Review of the application of geothermal heat pump systems in buildings https://journals.omgtu.ru/index.php/onv_ariem/article/view/1940 <p>Geothermal heat pumps are an energy-efficient and environmentally friendly technology applicable both in the construction of new facilities and in the modernization of existing buildings. They operate using renewable thermal energy from the Earth, which reduces the impact on the environment. The article considers theoretical and practical aspects of using geothermal heat pumps in heating systems of buildings for various purposes. The main attention is paid to the analysis of design solutions, operating principles, as well as factors affecting the efficiency of the systems, such as thermal conductivity of the soil and climatic features of the region. Various types of geothermal systems are considered: horizontal, vertical and open loops. Also provided are examples of implemented projects in climatically diverse regions of Russia (Moscow, Murmansk region, Kamchatka, Sochi). The article emphasizes the need for a comprehensive assessment of the economic feasibility of implementing systems, taking into account long-term performance indicators and regional conditions (Climatic conditions — geological and hydrological characteristics — economic factors such as the cost of electricity or fuel, the cost of labor and building materials, as well as government financial support).</p> Deeb Ali, Doroshin Aleksandr Nikolayevich, Deeb Muhammad Copyright (c) 2025 Дееб Али, Дорошин Александр Николаевич, Диб Мухаммад https://journals.omgtu.ru/index.php/onv_ariem/article/view/1940 Mon, 30 Jun 2025 00:00:00 +0000 Verification of mathematical model of transonic axial compressor stage https://journals.omgtu.ru/index.php/onv_ariem/article/view/1839 <p>The research presents the results of verification and validation of the mathematical model of the flow path transonic model NASA Stage 37 axial compressor using the data of the experiment conducted by NASA in the 1970s. The work presents the sequence of constructing a mathematical model of the flow path, as well as geometric models of the blade units. The mathematical model of the impeller blades is constructed based on the geometry of the blade airfoil obtained from the results of calculating the stress-strain state using the finite element method. When calculating the stress-strain state of the blade, the effect of gas-dynamic loads and centrifugal forces is considered. For gas-dynamic calculations, a study is conducted on grid independence with a description of the calculation method for the first near-wall layer and a justification for the choice of the turbulence model. A numerical study of the viscous gas flow in the flow path of the model stage is carried out considering the distribution of flow parameters and the position of the measurement control points according to the NASA report. As a result of numerical studies, gas-dynamic characteristics of the stage are constructed, and the distribution of flow parameters in the calculated sections along the height of the flow part is investigated. The obtained gas-dynamic characteristics based on the developed mathematical model quantitatively and qualitatively correspond to the results of NASA gas-dynamic tests. The obtained model can be used for further optimization or other calculations using the finite element method. </p> Zolotukhin Anton Sergeevich, Marenina Lyubov Nikolaevna, Drozdov Aleksandr Aleksandrovich, Zolotukhina Elena Yuryevna, Yablokov Aleksey Mikhailovich Copyright (c) 2025 Золотухин Антон Сергеевич, Маренина Любовь Николаевна, Дроздов Александр Александрович, Золотухина Елена Юрьевна, Яблоков Алексей Михайлович https://journals.omgtu.ru/index.php/onv_ariem/article/view/1839 Mon, 30 Jun 2025 00:00:00 +0000 Features of development of boil-off reciprocating compressors used in complexes for storage and transportation of liquid natural gas https://journals.omgtu.ru/index.php/onv_ariem/article/view/1927 <p>This article discusses complexes for the transportation, storage and transportation of liquefied natural gas, where compressors for the utilization of boil-off gas play a key role. The authors describe main features of boil-off compressors, the required parameters of reciprocating steam gas compressors, the main problems of calculating compressors in various systems, design methods for reciprocating compressors that improve the reliability of steam gas compressors to improve efficiency of liquefied natural gas storage and transportation systems.</p> Burakov Aleksandr Vasilyevich, Kotlov Andrey Arkadyevich, Kuznetsov Leonid Grigorievich Copyright (c) 2025 Бураков Александр Васильевич, Котлов Андрей Аркадьевич, Кузнецов Леонид Григорьевич https://journals.omgtu.ru/index.php/onv_ariem/article/view/1927 Mon, 30 Jun 2025 00:00:00 +0000