How much fuel and time can be saved in a perfect flight trajectory? Continuous cruise climbs vs. conventional operations
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hdl:2117/23151
Tipus de documentText en actes de congrés
Data publicació2014
Condicions d'accésAccés obert
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Abstract
Continuous climb, cruise and decent operations (referred
as continuous operations) may contribute to significantly
reduce fuel and emissions. Nevertheless, it is obvious that the
introduction of such procedures at large scale is not possible with
the current air traffic management concept of operations, since
flying at constant altitudes is one of the key aspects to strategically
separate flows of aircraft. This paper tries to quantify what would
be the potential savings of flying such optimised vertical profiles.
A multiphase optimal control problem is formulated and solved
by means of numerical optimisation. Optimal conventional trajectories
(subject to realistic air traffic management practices and
constraints) are compared with optimal continuous (and ideal)
operations, only subject to aircraft performance constraints.
Results show that the continuous cruise phase can lead to fuel
savings between 1% and 2% of the total trip fuel for an Airbus
A320. Interestingly, continuous operations show also a reduction
of trip times between 1% and 5% of the total trip time, depending
on the trip distance between origin and destination airports.
CitacióDalmau, R.; Prats, X. How much fuel and time can be saved in a perfect flight trajectory? Continuous cruise climbs vs. conventional operations. A: International Conference on Research in Air Transportation. "Proceedings of the 6th International Congress on Research in Air Transportation (ICRAT)". Istanbul: 2014.
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Versió de l'editorhttp://www.icrat.org
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