posted on Sep, 26 2005 @ 01:32 AM
Exist a relationship between entropy generation and both efficiency and lifetime of an aircraft and a space shuttle, i.e. the power systems far- from-
equilibrium. A huge number of components in an aircraft interact with each other, sometimes in ways that engineers do not anticipate. In complex,
chaotic systems interplay of the components leads to surprising outcomes.
Deterministic chaos is only one possible consequence; form of self-organisation in which there is an overload of entropy. In a closed power system
where there is a state of maximum entropy the existence of both "negative absolute temperature" and "false vacuum" is possible. "Absolute" fuel
filtration techniques have become an important operation in aviation. One of the major concerns in the absolute fuel filtration is the exergy
destruction or entropy generation on the membrane surface. During the filtration the fuel has a natural tendency to undergo irreversible processes and
thereby increase the entropy of an aircraft. Entropy generation in an irreversible process during membrane filtration is associated with production of
cold plasma (electrons and positrons i.e. fermions). Due to absolute fuel filtration unexpectedly the airplane is more far- from- beginning
Simple way to express the entropy law in aviation is that in a lubrication system of a turbine, and in a fuel tank, the parts and subsystems tend to
disintegrate over time. The break, break down, break up, friction, cavitation (or nucleate boiling, or fuel weathering), chemical reactions, water
production from oil/fuel, rust, die, decay, wear out, fuel tank explosions, aircraft
engines thrust power reduction, roll back and/or shut down, and generally move from a state of higher organisation to one of lower organisation, from
order to disorder. Entropy is imperceptible, therefore it is impossible to determine what caused those problems. The destroyed exergy, or the
generated entropy is responsible for the less-than-theoretical efficiency and lifetime
of a turbine, an aircraft and a space shuttle. The thermodynamical "arrow of "time" is characterized by the increase of entropy according to the
Second Law. Shorter aircraft lifetime ("arrow of time") can be very expensive and tragic. Second Law analysis techniques gives a powerful design
tool, and can be used to evaluate the performance of an aircraft. Fuel tank explosions are a byproduct of a complex system and only fundamental
change in the system thinking can extinguish them.
Minimal entropy generation is a general evolution criterion for an aircraft.