Design and Reliability Analysis of a Series/Parallel Hybrid System with a Rotary Engine for Safer Ultralight Aviation

The conventional powertrain for ultralight aviation consists of a fixed pitch propeller connected to an internal combustion engine (ICE). Since ICEs have a limited thermal efficiency (<40%), new and more efficient powerplant configurations have recently been proposed in the scientific literature...

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Main Authors: Teresa Donateo, Ludovica Spada Chiodo
Format: Article
Language:English
Published: MDPI AG 2023-03-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/13/7/4155
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author Teresa Donateo
Ludovica Spada Chiodo
author_facet Teresa Donateo
Ludovica Spada Chiodo
author_sort Teresa Donateo
collection DOAJ
description The conventional powertrain for ultralight aviation consists of a fixed pitch propeller connected to an internal combustion engine (ICE). Since ICEs have a limited thermal efficiency (<40%), new and more efficient powerplant configurations have recently been proposed in the scientific literature by adopting hybrid electric solutions. Hybridization has the additional benefit of increased safety thanks to redundancy. This is a very important issue in ultralight aviation, where a high percentage of accidents are caused by engine failure. In a previous investigation, the authors proposed the design of a series/parallel hybrid electric power system to increase safety and optimize fuel economy by controlling the engine working points during flight. A new powertrain, derived from an automotive Honda i-MMD system, is analyzed in this study and a reliability analysis is performed to underline the improved safety obtained with the proposed system.
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spelling doaj.art-e3633f1d2f124e19b3acb647e567aa022023-11-17T16:16:13ZengMDPI AGApplied Sciences2076-34172023-03-01137415510.3390/app13074155Design and Reliability Analysis of a Series/Parallel Hybrid System with a Rotary Engine for Safer Ultralight AviationTeresa Donateo0Ludovica Spada Chiodo1Department of Engineering for Innovation, University of Salento, Via per Monteroni, 73100 Lecce, ItalyDepartment of Engineering for Innovation, University of Salento, Via per Monteroni, 73100 Lecce, ItalyThe conventional powertrain for ultralight aviation consists of a fixed pitch propeller connected to an internal combustion engine (ICE). Since ICEs have a limited thermal efficiency (<40%), new and more efficient powerplant configurations have recently been proposed in the scientific literature by adopting hybrid electric solutions. Hybridization has the additional benefit of increased safety thanks to redundancy. This is a very important issue in ultralight aviation, where a high percentage of accidents are caused by engine failure. In a previous investigation, the authors proposed the design of a series/parallel hybrid electric power system to increase safety and optimize fuel economy by controlling the engine working points during flight. A new powertrain, derived from an automotive Honda i-MMD system, is analyzed in this study and a reliability analysis is performed to underline the improved safety obtained with the proposed system.https://www.mdpi.com/2076-3417/13/7/4155hybrid electric aircraftpower split deviceultralight aviationWankel engine
spellingShingle Teresa Donateo
Ludovica Spada Chiodo
Design and Reliability Analysis of a Series/Parallel Hybrid System with a Rotary Engine for Safer Ultralight Aviation
Applied Sciences
hybrid electric aircraft
power split device
ultralight aviation
Wankel engine
title Design and Reliability Analysis of a Series/Parallel Hybrid System with a Rotary Engine for Safer Ultralight Aviation
title_full Design and Reliability Analysis of a Series/Parallel Hybrid System with a Rotary Engine for Safer Ultralight Aviation
title_fullStr Design and Reliability Analysis of a Series/Parallel Hybrid System with a Rotary Engine for Safer Ultralight Aviation
title_full_unstemmed Design and Reliability Analysis of a Series/Parallel Hybrid System with a Rotary Engine for Safer Ultralight Aviation
title_short Design and Reliability Analysis of a Series/Parallel Hybrid System with a Rotary Engine for Safer Ultralight Aviation
title_sort design and reliability analysis of a series parallel hybrid system with a rotary engine for safer ultralight aviation
topic hybrid electric aircraft
power split device
ultralight aviation
Wankel engine
url https://www.mdpi.com/2076-3417/13/7/4155
work_keys_str_mv AT teresadonateo designandreliabilityanalysisofaseriesparallelhybridsystemwitharotaryengineforsaferultralightaviation
AT ludovicaspadachiodo designandreliabilityanalysisofaseriesparallelhybridsystemwitharotaryengineforsaferultralightaviation