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Olexandr Khustochka, Sergiy Yepifanov, Roman Zelenskyi and Radoslaw Przysowa
Zero-dimensional models based on the description of the thermo-gas-dynamic process are widely used in the design of engines and their control and diagnostic systems. The models are subjected to an identification procedure to bring their outputs as close ...
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Antti Alahäivälä, Juha Kiviluoma, Jyrki Leino and Matti Lehtonen
Power systems require a certain amount of flexibility to meet varying demand and to be able to cope with unexpected events, and this requirement is expected to increase with the emergence of variable power generation. In this paper, we focus on gas engin...
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Wenjie Shen, Suofang Wang and Xiaodi Liang
Impellers are utilized to increase pressure to ensure that a radial pre-swirl system can provide sufficient cooling airflow to the turbine blades. In the open literature, the pressurization mechanism of the impellers was investigated. However, the effect...
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Ali Dinc, Ali Mamedov, Ertugrul Tolga Duran, Fethi Abbassi, Ibrahim Elbadawy, Kaushik Nag, Mehdi Moayyedian, Mohamed Fayed, Murat Otkur and Yousef Gharbia
In this study, the effect of inlet air cooling on greenhouse gas (GHG) emissions and engine performance for a land-based gas turbine engine was investigated under varying ambient temperatures (15?55 °C). The study aimed to reduce GHG emissions while impr...
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Alexander Arkhipov, Yury Ravikovich, Dmitry Kholobtsev and Alexander Shakhov
A calculation-experimental study of durability of titanium booster drum of gas turbine engine (GTE) was carried out. A methodology of experimental estimation of titanium component life of GTE using structurally similar elements (SSE) has been proposed. A...
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Jonas Aust and Dirk Pons
Risk assessment methods are widely used in aviation, but have not been demonstrated for visual inspection of aircraft engine components. The complexity in this field arises from the variety of defect types and the different manifestation thereof with eac...
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Xiaoheng Liu, Ke Wan, Donghai Jin and Xingmin Gui
Gas turbine engines are highly intricate machines, and every component of them is closely associated with one another. In the traditional engine developing process, vast experiment tests are needed. To reduce unnecessary trials, a whole gas turbine engin...
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Juan Luis Pérez-Ruiz, Yu Tang and Igor Loboda
Considering the importance of continually improving the algorithms in aircraft engine diagnostic systems, the present paper proposes and benchmarks a gas-path monitoring and diagnostics framework through the Propulsion Diagnostic Methodology Evaluation S...
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Boris Vasilyev, Sergei Nikolaev, Mikhail Raevskiy, Sergei Belov and Ighor Uzhinsky
Blade damage accounts for a substantial part of all failure events occurring at gas-turbine-engine power plants. Current operation and maintenance (O&M) practices typically use preventive maintenance approaches with fixed intervals, which involve hig...
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Vladimir Yefanov,Oleksandr Ovchynnykov,Oleksandr Dzhuhan,Ihor Petrik,Dmytro Raspornia,Oleksii Kapustian,Yehor Saprykin
Pág. 6 - 13
This paper reports studying the effect of such highly active, surface-active modifying elements as Y, Hf, and La on the structure and properties of the Ni?Cr?Al system's consumable cathodes, which are used to apply heat-resistant coatings onto the gas-tu...
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Yuriy Yu. Tereshchenko,Yuriy M. Tereshchenko,Alexander Sklyarov,Ekaterina Doroshenko,Pavlo Humeniuk
Pág. 27 - 31
The purpose of this work is to estimate the aerodynamic characteristics of the stepped nacelle of a gas turbine engine with a turbofan unit. The research was based on the method of model physical experiment. The wind tunnel applied for the study was prov...
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Eric S. Hendricks and Justin S. Gray
Aviation researchers are increasingly focusing on unconventional vehicle designs with tightly integrated propulsion systems to improve overall aircraft performance and reduce environmental impact. Properly analyzing these types of vehicle and propulsion ...
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Jonas Aust and Dirk Pons
Context?The maintenance of aero engines is intricate, time-consuming, costly and has significant functional and safety implications. Engine blades and vanes are the most rejected parts during engine maintenance. Consequently, there is an ongoing need for...
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Boru Jia, Andrew Smallbone, Rikard Mikalsen, K.V. Shivaprasad, Sumit Roy and Anthony Paul Roskilly
The turbine-combined free-piston engine generator (TCFPEG) is a hybrid machine, generating both mechanical work from the gas turbine and electricity from the linear electric generator for battery charging. In the present study, the system performance of ...
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The effect of mainstream velocity and mainstream temperature on the behavior of deposition on a flat plate surface has been investigated experimentally. Molten wax particles were injected to generate particle deposition in a two-phase flow wind tunnel. T...
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Maria Cristina Cameretti, Andrea Del Pizzo, Luigi Pio Di Noia, Michele Ferrara and Ciro Pascarella
Hybrid electric propulsion in the aviation field is becoming an effective alternative propulsion technology with potential advantages, including fuel savings, lower pollution, and reduced noise emission. On the one hand, the aeroengine manufacturers are ...
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Samir Osman
Pág. 61 - 62
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Andrew Pilkington, Budimir Rosic and Shigenari Horie
During the shutdown of a gas turbine, natural convection flows occur inside of the engine casing. These natural convection flows cause the top of the engine casing to cool more slowly than the bottom of the casing. This non-uniform cooling can cause the ...
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Maria Cristina Cameretti, Andrea Del Pizzo, Luigi Pio Di Noia, Michele Ferrara and Ciro Pascarella
Hybrid electric propulsion in the aviation field is becoming an effective alternative propulsion technology with potential advantages, including fuel savings, lower pollution, and reduced noise emission. On the one hand, the aeroengine manufacturers are ...
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