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Critical impact of thermal management systems on on-board systems in hydrogen-powered aircraft

Kai Beschorner, Felix Verwiebe, Nils Külper, Thimo Bielsky, Frank Thielecke
August 18, 2026
Published Date

Research Abstract & Technology Focus

Abstract Hydrogen-powered aircraft offer a promising pathway to reduce the aviation sector's climate impact, with fuel cells providing high-efficiency power conversion at around 50%. However, producing considerable waste heat at around 80°C. Since this heat is generated inside the aircraft, implementing an active thermal management system to dissipate it becomes a critical design consideration. In this paper, a holistic design methodology for the TMS to calculate its mass, power demand, and drag is presented. Exceeding previous work, the assessment includes the impact of this integration on the design of other on-board systems and the aircraft's performance in terms of mission energy. Applied to the 70-passenger ESBEF-CP1 concept aircraft, the analysis shows that the TMS adds around 5200kg system mass distributed over ten pods, 9kN drag, and 2MW peak fan power, resulting in a 32% increase in mission energy demand after only a single iteration of the other systems design. The findings highlight that relying solely on ambient air as a heat sink results in high drag and fan power demand, challenging aircraft feasibility.
Heat sink Aviation Engineering Thermal management of electronic devices and systems Drag Automotive engineering
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Correlated Market Trend: Aerospace Engineering

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AI Semantic Synergy Context

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What is the core focus of the research titled 'Critical impact of thermal management systems on on-board systems in hydrogen-powered aircraft'?

This literature focuses on: Abstract Hydrogen-powered aircraft offer a promising pathway to reduce the aviation sector's climate impact, with fuel cells providing high-efficiency power conversion at around 50%. However, producing considerable waste heat at around 80°C. Since...

Are there open-source GitHub repositories related to Critical impact of thermal management systems on on-board systems in hydrogen-powered aircraft?

Yes, open-source projects like gsd-build/gsd-2 (A powerful meta-prompting, context engineering and spec-driven development system that enables agents to work for long periods of time autonomously...) are actively building upon these concepts.

Which startups are commercializing the technology behind Critical impact of thermal management systems on on-board systems in hydrogen-powered aircraft?

Products like Ovren are bringing this to market. Their focus is: Your AI engineering department that ships your backlog.

What other academic literature is closely related to 'Critical impact of thermal management systems on on-board systems in hydrogen-powered aircraft'?

Yes, highly correlated activity was mapped. An entry titled 'Effects of Injector Clogging and Hydrogen Energy Fraction on the Combustion and Emission Characteristics of a Four-Stroke Hydrogen/Diesel Dual Fuel Marine Engine at Different Intake Air Temperatures: A Numerical Study' discusses this: This study numerically investigates the combined effects of injector clogging ratios (10%, 20%, 30%, 40%, 50%), hydrogen energy fractions (HEF20, H...

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