Tell a friend
Print
Sommer, Kai and Gienger, Andreas and Weiss-Ungethüm, Jörg and Bänsch, Cornelie (2025) Experimental Investigation of the Efficiency of a Multi-Stack Fuel Cell System for Aviation Applications in the Megawatt Range. In: 11ᵀᴴ EUROPEAN CONFERENCE FOR AERONAUTICS AND SPACE SCIENCES (EUCASS). EUCASS 2025, 2025-06-30 - 2025-07-04, Rom, Italien. doi: 10.13009/EUCASS2025-399.
![[img]](https://elib.dlr.de/style/images/fileicons/application_pdf.png) |
PDF
1MB |
Abstract
An experimental study of a converter-free multi-stack fuel cell system (MFCS) with 10 PEMFC modules in 2s5p (series x parallel) configuration with megawatt power is presented. In full-parallel mode of the MFCS, maximum power output of 925.5 kW at 1635 A is obtained with up to 13.5 % performance loss due to parallel connection compared to theoretical maximum power. A partly-parallel setup yields 966.0 kW at 1719 A, reducing the loss to 9.6 %. Electrical interactions and oscillations are observed across strings under high loads. The results confirm feasibility while highlighting efficiency losses and architectural challenges in high-power converter-free fuel cell systems.
| Item URL in elib: | https://elib.dlr.de/220718/ | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Document Type: | Conference or Workshop Item (Poster) | ||||||||||||||||||||
| Title: | Experimental Investigation of the Efficiency of a Multi-Stack Fuel Cell System for Aviation Applications in the Megawatt Range | ||||||||||||||||||||
| Authors: |
| ||||||||||||||||||||
| Date: | July 2025 | ||||||||||||||||||||
| Journal or Publication Title: | 11ᵀᴴ EUROPEAN CONFERENCE FOR AERONAUTICS AND SPACE SCIENCES (EUCASS) | ||||||||||||||||||||
| Refereed publication: | No | ||||||||||||||||||||
| Open Access: | Yes | ||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||
| In SCOPUS: | No | ||||||||||||||||||||
| In ISI Web of Science: | No | ||||||||||||||||||||
| DOI: | 10.13009/EUCASS2025-399 | ||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||
| Keywords: | MFCS, PEM-FC, Megawatt operation, Experimental | ||||||||||||||||||||
| Event Title: | EUCASS 2025 | ||||||||||||||||||||
| Event Location: | Rom, Italien | ||||||||||||||||||||
| Event Type: | international Conference | ||||||||||||||||||||
| Event Start Date: | 30 June 2025 | ||||||||||||||||||||
| Event End Date: | 4 July 2025 | ||||||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||
| HGF - Program: | Aeronautics | ||||||||||||||||||||
| HGF - Program Themes: | Components and Systems | ||||||||||||||||||||
| DLR - Research area: | Aeronautics | ||||||||||||||||||||
| DLR - Program: | L CS - Components and Systems | ||||||||||||||||||||
| DLR - Research theme (Project): | L - Aircraft Systems | ||||||||||||||||||||
| Location: | Stuttgart | ||||||||||||||||||||
| Institutes and Institutions: | Institute of Engineering Thermodynamics > Energy System Integration | ||||||||||||||||||||
| Deposited By: | Sommer, Kai | ||||||||||||||||||||
| Deposited On: | 15 Dec 2025 16:01 | ||||||||||||||||||||
| Last Modified: | 15 Dec 2025 16:01 |
Repository Staff Only: item control page
