Results 11 to 20 of about 1,316,871 (309)
Transient modelling and simulation of gas turbine secondary air system [PDF]
Applied Thermal Engineering, 2020 Abstract The behaviour of the jet engine during transient operation and specifically its secondary air system (SAS) is the point of this work. This paper presents a methodological approach to develop a fast, one-dimensional transient platform for preliminary analysis of the flow behaviour in gas turbine engines secondary air system. For this purpose,
Nikolaidis, Theoklis +2 more
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Numerical simulation of a supersonic ejector for vacuum generation with explicit and implicit solver in openfoam [PDF]
, 2019 Supersonic ejectors are used extensively in all kind of applications: compression of refrigerants in cooling systems, pumping of volatile fluids or in vacuum generation. In vacuum generation, also known as zero-secondary flow, the ejector has a transient
Camacho, Sergi +4 more
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The Effect of Break Edge Configuration on the Aerodynamics of Anti-Ice Jet Flow
EPJ Web of Conferences, 2015 One of the components of a turboprop gas turbine engine is the Front Bearing Structure (FBS) which leads air into the compressor. FBS directly encounters with ambient air, as a consequence ice accretion may occur on its static vanes.
Tatar V., Yildizay H., Aras H.
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A Multifidelity Aero-Thermal Design Approach for Secondary Air Systems
Journal of Engineering for Gas Turbines and Power, 2021 Abstract The paper presents a multidisciplinary approach for aero-thermal and heat transfer analysis for internal flows. The versatility and potential benefit offered by the approach are described through the application to a realistic low pressure turbine assembly.
Dario Amirante +2 more
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Simulation of the Secondary Air System of Aero Engines [PDF]
Volume 1: Turbomachinery, 1992 This paper describes a computer program for the simulation of secondary air systems. Typical flow system elements are presented, such as restrictors, tappings, seals, vortices, and coverplates. Two-phase flow as occuring in bearing chamber vent systems is briefly discussed.
K. J. Kutz, T. M. Speer
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Closed-loop bulk air conditioning: A renewable energy-based system for deep mines in arctic regions
International Journal of Mining Science and Technology, 2020 With depletion of shallow deposits, the number of underground mines expected to reach more than 3 km depth during their lifetime is growing. Although surface cooling plants are mostly effective in mine air-conditioning, usually secondary cooling units ...
Ali Fahrettin Kuyuk +2 more
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IEEE Access, 2021 In addition to the importance of safety in civil aviation, the significance of cybersecurity in the aviation sector cannot be ignored, and this fact has often been highlighted owing to frequent cyber-attacks that denigrate victim(s) and also lead to ...
Ahmed Abdelwahab Elmarady, Kamel Rahouma
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Environmental Impact Assessment, on the Operation of Conventional and More Electric Large Commercial Aircraft [PDF]
, 2013 Global aviation is growing exponentially and there is a great emphasis on trajectory optimization to reduce the overall environmental impact caused by aircraft. Many optimization techniques exist and are being studied for this purpose.
Lawson, Craig P. +2 more
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POWER-SUPPLaY: Leaking Data from Air-Gapped Systems by Turning the Power-Supplies Into Speakers [PDF]
, 2020 It is known that attackers can exfiltrate data from air-gapped computers through their speakers via sonic and ultrasonic waves. To eliminate the threat of such acoustic covert channels in sensitive systems, audio hardware can be disabled and the use of ...
Guri, Mordechai
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Improvement of Solid-Gas Interaction in Fluidized Bed Systems via Secondary Air- Injection
MATEC Web of Conferences, 2017 Since the invention of fluidized bed systems to augment chemical reactions, numerous innovations were introduced to the system. These innovations result-in substantial improvement to the overall efficiency apart from resulting the fluidized bed system to
Mohideen Batcha Mohd Faizal +2 more
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