Results 271 to 280 of about 1,718,290 (313)
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Secondary Power System Evaluations for an Unmanned Air Vehicle Configuration
SAE Technical Paper Series, 1999<div class="htmlview paragraph">A Thermodynamic analytical program has been developed to help investigate the impact of power system requirements on Tactical Aircraft (TA) and Unmanned Aerial Vehicle (UAV) performance. The Visual Basic for Applications (VBA) program has a user interface that operates in MS-Excel, linking several subsystem ...
Mysore Ramalingam +2 more
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On the Performance of Gas Turbine Secondary Air Systems
Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, 2001The paper proposes a straightforward technique to quantify the performance of a gas turbine secondary air system. By recognising the air system as a component in its own right and performing the calculations suggested the systems engineer should be better able to develop and optimise a given air system.
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Calculating AQI Using Secondary Pollutants for Smart Air Management System
2019With the onslaught of the industrial revolution, the environment is suffering from severe pollution leading to major imbalances. Air Quality Dispersion Modelling can be done through one of the most efficient model “Eulerian Grid based model”. Various existing methods of prediction work on the basis of models resulting in satisfactory outcomes but with ...
Gautam Jyoti +3 more
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Separation of Particles in the Secondary Air System of Gas Turbines
Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Wind Turbine Technology, 2011Particles contaminating the secondary air system of land based gas turbines or aero-engines can cause serious problems in various engine components, particularly in the cooling system. The capability of the pre-swirl system in separating particles will be described in this paper.
Villora, N. G. +2 more
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Simple Particle Separator for the Secondary Air System of Gas Turbines
Volume 4: Heat Transfer, Parts A and B, 2012In heavy-duty gas turbines as well as in aero-engines, air is extracted from the compressor and led to the hot parts of the combustor and the turbine in order to cool them. Despite active design solutions such as material selection, and inclusion of compressor inlet filters, dust holes, and so on, the cooling air can be charged with solid particles ...
Garcia Villora, N. +4 more
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Assessing the Capacity of Air Traffic Control Secondary Surveillance Radar System
2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC), 2019to assess the capacity of air traffic control (ATC) secondary surveillance radar (SSR) system in the first principle, using queuing theory model M/D/1/0, the paper constructed an analytical model for analyzing the relationship between the capacity and reply efficiency, rotation speed of antenna, beam width, time of signal processing, PRF or operation ...
Guofeng Jiang, Yangyu Fan, Hongbo Yuan
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Utilization of Ice Storage in Secondary Loop Automotive Air-Conditioning Systems
SAE International Journal of Passenger Cars - Mechanical Systems, 2013<div class="section abstract"><div class="htmlview paragraph">Due to the influence of energy use on electric vehicle range, latent energy storage options could be used to increase thermal comfort and decrease energy consumption during driving.
Magnus Eisele +2 more
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System-design considerations for secondary surveillance radar for air-traffic control
Students Quarterly Journal, 1970After describing the principles of operation and operational uses of a secondary-surveillance-radar system, the author discusses a typical system composition and limitations. Methods of alleviating the system limitations are then described, followed by factors which are considered when specifying the system components.
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The Importance of Secondary Air Mixing in Exhaust Thermal Reactor Systems
SAE Technical Paper Series, 1975<div class="htmlview paragraph">Automotive thermal reactors have obtained high conversion efficiencies on engines with very rich carburetion, but fuel economy and reactor durability have suffered. Improved mixing of exhaust gas and secondary air in the engine exhaust port was examined as a means of improving reactor efficiency at less rich engine
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Simulation Results for an Air-Conditioning System With Secondary Refrigerant Loops
Heat Pump and Refrigeration Systems Design, Analysis, and Applications, 1995Abstract There are some highly efficient and environmentally safe hydrocarbons and HFCs proposed as R22 substitutes, but they are flammable. The use of these refrigerants in an air-conditioning/heat pump system may not be acceptable. The present research looks into the prospects of using an additional loop with a secondary refrigerant as
Imam Haider, Reinhard Radermacher
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