Results 311 to 320 of about 179,421 (367)

Fuels for Aircraft Engines

Journal of the Royal Aeronautical Society, 1932
There has been a great advancement in recent years in the technique and production of suitable fuels for both aircraft and automobile engines and the author hopes that a few notes on the fuel problem with particular reference to aircraft work may be of help to those engaged on aero engine design and operation.In the author's opinion it is somewhat ...
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Reliability of Aircraft Engines

The Journal of the Royal Aeronautical Society, 1925
The progress of mechanical flight to the present stable position occupied by aircraft as a means of transport has been so closely related with the problems associated with the development of the power unit, that an examination of such an important factor as its “ reliability ” appears justified.In searching for possible means to produce power, it was ...
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Exergoeconomic analysis of an aircraft turbofan engine

International Journal of Exergy, 2009
This study deals with an exergoeconomic analysis of an aircraft turbofan engine utilising the kerosene as fuel. A new parameter is developed to define the thrust cost rate. The cost of exergy destruction, the relative cost difference and the exergoeconomic factor are investigated.
Karakoc, T. Hikmet, Turgut, Enis T., Hepbasli, Arif   +2 more
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The Lubrication of Aircraft Engines

The Journal of the Royal Aeronautical Society, 1929
Mr. Foord: It has been truly said that “lubrication is the heart of an engine,” and I think this saying applies in the strongest possible sense to aircraft engines.The reasons for this are manifold and one has only to consider the overall thermal efficiency, the low weight/power ratio and consequent minimum scantlings and bearing surfaces, and the high
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Aircraft Engine Installation [PDF]

Aircraft Engineering and Aerospace Technology, 1930
THE subject of aircraft engine installation has not received as much attention during the past as it should have done, particularly from an engineering and service standpoint. Many of the failures of power plants in the air have not been caused by engine failure, but by engine installation.
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Heat recovery from aircraft engines

Collection of Technical Papers. 35th Intersociety Energy Conversion Engineering Conference and Exhibit (IECEC) (Cat. No.00CH37022), 2000
The paper deals with the problem of heat recovery from aircraft engines, with specific reference to jet engines and turbo propeller engines. In actual propulsion systems, the trend for cycle maximum temperatures is for very high values, with a consequent increasing of discharge temperature, due account also given to operative modalities of the ...
ANDRIANI, ROBERTO, L. Degli Antoni Ferri, GHEZZI, UMBERTO, PASINI, SILVANO   +3 more
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Aircraft engine exhaust measurement

Air & Space Europe, 2001
Abstract Increasing consciousness of the potential impact upon the atmosphere of pollutant emissions from aircraft has focused attention upon the need for accurate measurement of such emissions. In this paper, the various constituents of aero engine exhaust which may be significant in their impact upon the atmosphere are identified and the current ...
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Scheduling the Repairment of Aircrafts' Engines

2017 International Conference on Control, Artificial Intelligence, Robotics & Optimization (ICCAIRO), 2017
In this paper a real world scheduling problem concerning the repair process of aircrafts" engines by TAP - Maintenance & Engineering (TAP-ME), is addressed. TAP-ME is the maintenance, repair and overhaul organization of TAP Portugal, Portugal's leading airline.
Eliana Costa e Silva, Jorge Orestes Cerdeira, Isabel Cristina Lopes   +2 more
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Aircraft-Engine-Accessory Vibration

Transactions of the American Institute of Electrical Engineers, 1944
1. The overhang-moment limit, or still better a limit on the moment of inertia of the accessory about a line through the center of the accessory mounting surface, would be helpful by limiting one of the two factors which control the natural frequency of the accessory-rear-cover combination.
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Metallic materials for aircraft engineering

Aircraft Engineering and Aerospace Technology, 1995
Aircraft designers require materials which offer features and benefits that are specifically tailored to the aerospace industry. Much time, with huge expenditure, has been devoted since the Second World War by many special alloy producers to the development of alloys which provide high strength and corrosion resistance — often with low density — for ...
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