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Optimization Study of an Intercooled Recuperated Aero-Engine
Siemens.
Cranfield University, UK. (Future Energy Center)ORCID iD: 0000-0002-8466-356X
Chalmers University of Technology, Sweden.
2013 (English)In: Journal of Propulsion and Power, ISSN 0748-4658, Vol. 29, no 2, 424-432 p.Article in journal (Refereed) Published
Abstract [en]

The design space of an intercooled recuperated aero-engine has been explored using detailed engine and aircraft performance, weight, and dimensions modeling. The design parameters of the engine fan, core, intercooler, recuperator, cooling-air ratio, and variable-geometry settings for the low-pressure turbine have been optimized for minimum mission fuel. Analysis shows that the improvement achieved in terms of performance against the datum design can be attributed primarily to an increase in thermal efficiency. A parametric study has also been carried out around the optimal design to understand the impact of the chosen design parameters on mission fuel burn. The study demonstrates in detail the substantially more complex interrelationship that the different fan design parameters have in terms of engine performance compared to what is typical for conventional turbofan designs. Furthermore, the optimal pressure ratio split between the low-pressure compressor and the high-pressure compressor aligns well with a previous analytical study. It is also revealed that the increased amount of cooling air required when a hot bleeding concept is adopted is in fact beneficial for mission fuel burn. Finally, the study concludes that the potential of using variable geometry in the low-pressure turbine for improving fuel burn is limited by the high-pressure turbine blade-metal temperature.Read More: http://arc.aiaa.org/doi/abs/10.2514/1.B34594

Place, publisher, year, edition, pages
2013. Vol. 29, no 2, 424-432 p.
Keyword [en]
Gas Turbine, Aircraft Engine, Intercooling, Recuperation, Optimization
National Category
Aerospace Engineering Energy Engineering
Research subject
Energy- and Environmental Engineering
Identifiers
URN: urn:nbn:se:mdh:diva-25065DOI: 10.2514/1.B34594OAI: oai:DiVA.org:mdh-25065DiVA: diva2:750271
Available from: 2014-09-27 Created: 2014-05-28 Last updated: 2016-05-16Bibliographically approved

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Publisher's full texthttp://arc.aiaa.org/doi/abs/10.2514/1.B34594

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
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