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On the trade-off between aviation NOx and energy efficiency
Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi. (Future Energy Center)ORCID-id: 0000-0002-8466-356X
Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi.ORCID-id: 0000-0002-7233-6916
2017 (Engelska)Ingår i: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 185, s. 1506-1516Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

This study aims to assess the trade-off between the ever-increasing energy efficiency of modern aero-engines and their   performance. The work builds on performance models previously developed to optimise the specific fuel consumption of future aero-engine designs. As part of the present work a simple and adaptable   emissions correlation for Rich-burn Quick-quench Lean-burn combustor designs is derived. The proposed model is computationally inexpensive and sufficiently accurate for use in aero-engine multi-disciplinary conceptual design tools. Furthermore, it is possible to adapt the correlation to model the   emissions of combustors designed for very aggressive future cycles. An approach to lean-burn combustor   emissions modelling is also presented. The simulation results show that improving engine propulsive efficiency is likely to have a benign effect on  emissions at high altitude; at sea-level conditions   emissions are particularly likely to reduce. Improving engine thermal efficiency however has a detrimental effect on   emissions from RQL combustors, both at high altitude and particularly at sea-level conditions. LDI combustor technology does not demonstrate such behaviour. Current legislation permits trading   emissions engine efficiency and hence reduce   emissions. If we are to reduce the contribution of aviation to global warming, however, future certification legislation may need to become more stringent and comprehensive.

Ort, förlag, år, upplaga, sidor
2017. Vol. 185, s. 1506-1516
Nyckelord [en]
NOx; Performance; Rich-burn Quick-quench Lean-burn combustor; Gas turbine; Lean direct injection; Aircraft Engine
Nationell ämneskategori
Rymd- och flygteknik Energiteknik Energisystem
Forskningsämne
energi- och miljöteknik
Identifikatorer
URN: urn:nbn:se:mdh:diva-33989DOI: 10.1016/j.apenergy.2015.12.055ISI: 000390494800053Scopus ID: 2-s2.0-84953792175OAI: oai:DiVA.org:mdh-33989DiVA, id: diva2:1049969
Konferens
7th International Conference on Applied Energy (ICAE), Abu Dhabi, U ARAB EMIRATES, MAR 28-31, 2015
Forskningsfinansiär
EU, FP7, Sjunde ramprogrammetTillgänglig från: 2016-11-27 Skapad: 2016-11-27 Senast uppdaterad: 2018-12-18Bibliografiskt granskad

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Kyprianidis, KonstantinosDahlquist, Erik

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