Study of Airborne Hybridized Fuel Cell Systems for Aeronautics
Description
The domain of air transport is working at reducing its emissions of greenhouse gases. PEMFC are seriously considered as electrical source for future aircraft. The present study focusses on the feasibility of propulsion of a light aircraft powered by hybridized PEMFC systems. The hybrid PEMFC / Li-Ion batteries system studied here produces 40 kW (20 kW PEMFC + 20 kW Li-Ion) and should be able to power a two-seat light aircraft. The first part of the study is dedicated to PEMFC airworthiness, meaning their capacity to work properly in aeronautical conditions. The second part is dedicated to the hybrid system electrical architecture, its dimensioning and its response to various flight profiles. Aerobic PEMFC performance loss due to drop in ambient pressure is quantified thanks to experiments at various altitude. Thanks to these measurements and to a numerical model, aerobic and anaerobic PEMFC are compared according to various flight profiles. A mass and volume balance of each technology is drawn up. In addition, inclination tests of PEMFC systems are performed. Direct hybridization of PEMFC and Li-Ion batteries is studied numerically and experimentally. A Matlab Simulink model of PEMFC and battery is developed in order to forecast the hybrid system's response and to size it. Finally, an experimental bench is settled up and tests are led, proving the interest of such an innovative architecture. (author)
Abstract (French)
Le domaine du transport aerien est en plein effort de reduction de ses emissions de gaz a effet de serre. Les PEMFC sont serieusement envisagees afin d'introduire d'avantage d'energie electrique a bord des avions. On se propose d'etudier la faisabilite de la propulsion d'avions legers alimentes par des systemes pile a combustible hybrides. On etudie plus specifiquement un systeme hybride PEMFC / Batteries Li-Ion produisant un total de 40 kW (20 kW PaC + 20 kW Li-Ion) permettant de propulser un avion leger biplace. Le premier aspect de cette etude est la navigabilite des PEMFC, c'est a dire leur aptitude a fonctionner en milieu aerien. Le second aspect est l'architecture electrique du systeme hybride, son dimensionnement et son comportement lors de differents profils de vol. Des essais experimentaux en altitude sont menes et permettent de quantifier la diminution des performances de PaC aerobies liee a la diminution de pression ambiante. Grace a ces essais et a un modele numerique de PaC, on compare les technologies aerobies et anaerobies pour differents profils de vol. Un bilan des masses et des volumes associe a chacune de ces deux technologies est dresse. Par ailleurs, des essais en inclinaisons de systemes PEMFC sont realises. L'hybridation directe de PEMFC avec des batteries Lithium est etudiee numeriquement et experimentalement. Un modele Matlab Simulink de PaC et de batteries Lithium est developpe afin de predire le comportement du systeme hybride direct et de le dimensionner. Enfin, un banc experimental d'hybridation directe est realise et des essais sont menes, revelant l'interet de cette architecture innovante. (auteur)
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Additional details
Additional titles
- Original title (French)
- Etude de systemes pile a combustible hybrides embarques pour l'aeronautique
Publishing Information
- Imprint Pagination
- 232 p.
- Report number
- FRNC-TH--14566
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 54069597
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Resource subtype / Literary indicator
- Thesis
- Descriptors DEI
- AEROBIC CONDITIONS; AIRPLANES; ANAEROBIC CONDITIONS; BATTERY CHARGE STATE; COMPUTERIZED SIMULATION; HYBRID SYSTEMS; INCLINATION; LITHIUM ION BATTERIES; PRESSURE DEPENDENCE; PROTON EXCHANGE MEMBRANE FUEL CELLS
- Descriptors DEC
- AIRCRAFT; DIRECT ENERGY CONVERTERS; ELECTRIC BATTERIES; ELECTROCHEMICAL CELLS; ENERGY STORAGE SYSTEMS; ENERGY SYSTEMS; FUEL CELLS; SIMULATION; SOLID ELECTROLYTE FUEL CELLS
Optional Information
- Notes
- 104 refs.; Available from the INIS Liaison Officer for France, see the INIS website for current contact and E-mail addresses