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The Growth Engine Concept and Its Potential for an Electrified Aviation Future
Mälardalen University, School of Business, Society and Engineering, Future Energy Center.
Mälardalen University, School of Business, Society and Engineering, Future Energy Center.ORCID iD: 0000-0002-8466-356X
AURA-AERO, Cugnaux, 312 70, France.
2024 (English)In: Journal of engineering for gas turbines and power, ISSN 0742-4795, E-ISSN 1528-8919, Vol. 146, no 7, article id 070901Article in journal (Refereed) Published
Abstract [en]

The emerging need for cost- and energy-efficient propulsion systems have shifted the research interest to radical concepts, with several challenges to overcome in order to enter into service. However, revitalizing old yet provably successful engine designs-a practice followed by engine manufacturers over the years-can provide low-risk alternative solutions to move immediate market demands. The paper reviews this approach, known as concept of growth engines or core commonality, and investigates how a geometrically fixed or geometrically similar engine core can be utilized across a family of engines. The development programs of the highly successful CFM56 and PT6 engine families are analyzed, proving the success of this concept over the years. The idea is based on the engineering paradigm of product families and is briefly presented from a theoretical perspective. Implementation methods and simulation tools to initiate, conceptualize, design, and evaluate an engine family program are reviewed. The potential application of engine core commonality into electrified propulsion systems is investigated. Design challenges and opportunities that electrification imposes to the growth engine concept are discussed. Finally, the concept of growth electrified propulsion systems is introduced, conveying future research directions to achieve a successful family of engines for electrified applications.

Place, publisher, year, edition, pages
American Society of Mechanical Engineers (ASME) , 2024. Vol. 146, no 7, article id 070901
Keywords [en]
CFM56, core commonality, electrification, engine family, engine variant, growth engines, PT6, Electric utilities, Energy efficiency, Cost-efficient, Energy efficient, Engine variants, Growth engine, Propulsion system, Engines
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:mdh:diva-66335DOI: 10.1115/1.4063193Scopus ID: 2-s2.0-85187710513OAI: oai:DiVA.org:mdh-66335DiVA, id: diva2:1848194
Note

Article; Export Date: 02 April 2024; Cited By: 0; Correspondence Address: M.D. Kavvalos; Future Energy Center, Mälardalen University (MDU), Västerås, 721 23, Sweden; email: mavroudis.kavvalos@mdu.se; CODEN: JETPE

Available from: 2024-04-02 Created: 2024-04-02 Last updated: 2024-04-02Bibliographically approved

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Kavvalos, MavroudisKyprianidis, Konstantinos

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