Thermoeconomics is the cost analysis based on the cost and exergy calculations which are used to determine the potential of unproductiveness in all of the thermal systems. This approach is also defined as 'exergy cost' and ...

An effective competition at the civil aviation sector could be possible by an effective fleet management. One of two important functions of the fleet management is to define the aircraft routes and plan the aircraft ...

Thermal barrier coatings (TBC,) are applied on cooled gas turbine components. Between the heated and cooled surfaces a thermal gradient develops, resulting for constraint components in high multiaxial stresses, which may ...

The requirement for improved understanding of the behaviour of turbine disc alloys at elevated temperatures has led to an increased interest in the contribution of time dependant mechanisms to high temperature fatigue crack ...

SiAlON ceramics with high hardness and high toughness can be made through designing alpha/beta-SiAlON composites. An important advantage of alpha-SiAlON phase is that the amount of intergranular phase is reduced by the ...

The aircraft maintenance process plays a vital role in aviation safety. The quality of the maintenance process and the qualifications of the aircraft maintenance personnel are important factors in the safety of aircraft. ...

Material systems made from nickel based superalloys with protective coatings have been tested in thermo-mechanical fatigue with superposed thermal gradients, which generated multiaxial stress states. The testing conditions ...

Air transportation has been suffering for decades from delays caused by air traffic congestion. This paper presents the effect of aircraft performance differences on air traffic delays. Rate of climb and cruising speeds ...

…

[No abstract available]