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Conceptual Design Assessment of Advanced Hybrid Electric Turboprop Aircraft Configurations

Strack, Matthias and Pinho Chiozzotto, Gabriel and Iwanizki, Michael and Plohr, Martin and Kuhn, Martin (2017) Conceptual Design Assessment of Advanced Hybrid Electric Turboprop Aircraft Configurations. In: 17th AIAA Aviation Technology, Integration, and Operations Conference. 17th AIAA Aviation Technology, Integration, and Operations Conference, 05.-09. June 2017, Denver, Colorado. DOI: 10.2514/6.2017-3068

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Abstract

This paper presents a conceptual design study of hybrid electric turboprop aircraft configurations for entry into service in the year 2035. A design mission of 800 nm and 70 passengers was the focus of the study. The hybrid electric architecture was used as an enabler for advanced configurations and improved propulsive efficiency. The main energy source for cruise flight is conventional fuel, batteries are used only to cover peak loads. A design process with four phases covering a wide design space was performed: 1) initial brainstorming phase (48 concepts identified), 2) qualitative down-selection based on expert judgment (reduction to 17 concepts), 3) initial quantitative analysis with simple spreadsheet methods (reduction to four concepts), and 4) evaluation of the four most promising concepts with classical conceptual design methods enhanced by more detailed disciplinary analysis when required. The most promising concept after all phases consisted of a parallel hybrid architecture with a high aspect ratio wing, electrically driven propellers at the wingtip and reduced vertical tailplane. A mission fuel reduction of 4% compared to an advanced EIS 2035 turboprop without hybrid electric propulsion was achieved with this concept. Other promising configurations included a tailless concept and a distributed propulsion configuration.

Item URL in elib:https://elib.dlr.de/112892/
Document Type:Conference or Workshop Item (Speech)
Title:Conceptual Design Assessment of Advanced Hybrid Electric Turboprop Aircraft Configurations
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Strack, Matthiasmatthias.strack (at) dlr.deUNSPECIFIED
Pinho Chiozzotto, Gabrielgabriel.pinhochiozzotto (at) dlr.deUNSPECIFIED
Iwanizki, MichaelMichael.Iwanizki (at) dlr.deUNSPECIFIED
Plohr, Martinmartin.plohr (at) dlr.deUNSPECIFIED
Kuhn, MartinMartin.Kuhn (at) dlr.deUNSPECIFIED
Date:June 2017
Journal or Publication Title:17th AIAA Aviation Technology, Integration, and Operations Conference
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI :10.2514/6.2017-3068
Status:Published
Keywords:Conceptual Aircraft Design, Hybrid-Electric, Distributed Propulsion, Turboprop
Event Title:17th AIAA Aviation Technology, Integration, and Operations Conference
Event Location:Denver, Colorado
Event Type:international Conference
Event Dates:05.-09. June 2017
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Concepts and Integration
Location: Hamburg
Institutes and Institutions:Air Transport Operations > Integrated Aircraft Design
Institute of Aeroelasticity > Loads Analysis and Aeroelastic Design
Institute for Aerodynamics and Flow Technology > Transport Aircraft
Institute of Propulsion Technology > Engine
Institute of System Dynamics and Control > Aircraft System Dynamics
Deposited By: Strack, Matthias
Deposited On:27 Jul 2017 11:40
Last Modified:09 Feb 2018 11:17

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