ABSTRACT An unusual philosophical approach is proposed here to decarbonise larger civil aircraft that fly long ranges and consume a large fraction of aviation fuel. These inject an important amount carbon emissions into the atmosphere, holistic decarbonising solutions must consider this sector. A philosophical–analytical investigation reported on feasibility airliner family over assist in elimi...

The theory of contrail formation for fuel cells is derived. It a variant the well-known Schmidt-Appleman theory. factor or G-factor much larger than jet engines, such that condensation exhaust water vapour can happen even at Earth’s surface in sufficiently cold (a few degrees above zero) weather. Contrail from will occur frequently lower troposphere and unavoidable below moderate temperature li...

Research led by Professor Chapman at the Knowledge Based Engineering (KBE) lab has resulted in a thriving partnership with the aerospace division of Rolls-Royce. KBE research captures domain-based knowledge and integrates it into refined computational models with automated tools to enhance design processes for engineering complex systems. This research has contributed to important improvements ...

We present an initial parametric investigation of fan flow deflectors for suppressing noise from supersonic turbofan engines. Realistic exhaust geometry and flow conditions for bypass ratio 2.7 were simulated in a subscale experiment. The study encompassed acoustic measurement and mean velocity surveys. The deflectors comprised internal vanes with both symmetric and cambered airfoil sections an...

This paper describes an experimental evaluation of the diagnostic concepts implemented in a prototypical case-based reasoner (CBR), called Epaion. The reasoner operates in the domain of in-flight fault diagnosis and prognosis of aviation subsystems, particularly jet engines. The evaluation used actual aircraft accidents and incident cases, which were simulated to assess the effectiveness of Epa...

Continuous combustion processes are prominently encountered in many applications related to power generation, heating and propulsion. Examples include domestic and industrial burners, steam and gas turbines, waste generators, and jet and ramjet engines. Continuous combustion processes exhibit a wide range of dynamics. Of these, conditions which promote coupling with the acoustic field and resul...