Hydrogen fuelled aeroengine heat energy management architecture and method based on dual intermediate media

By employing a dual-intermediate hydrogen fuel cell aero-engine thermal energy management architecture and intelligent control strategy, the challenges of multi-heat source coupling and heat sink matching in the thermal management system of hydrogen fuel cell aero-engines have been solved. This enables multi-level utilization of cold energy and waste heat, improves the system's thermal efficiency and reliability, and reduces the thermal stress on key components.

CN122106755AActive Publication Date: 2026-05-29TAIHANG NATIONAL LABORATORY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-30
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The thermal management system of hydrogen fuel cell aircraft engines faces challenges such as multi-heat source coupling, difficulty in matching heat sinks, embrittlement caused by hydrogen molecule permeation, high requirements for sealing and leakage control, challenges in the tolerance of hot-end components, and the impact of traditional cooling methods on overall aircraft performance and insufficient air volume.

Method used

A thermal energy management architecture for hydrogen fuel cell aircraft engines based on dual intermediate media is adopted. Helium and liquid metal are used as heat exchange media to build a multi-level cascade utilization chain. Through efficient heat dissipation mode, transient temperature control mode and energy-saving standby mode, the precise matching and utilization of cold energy and waste heat are achieved. Combined with intelligent control strategy, the medium circulation path and flow regulation are optimized.

Benefits of technology

It improves the thermal efficiency and system integration capabilities of hydrogen fuel cell aircraft engines, reduces the temperature and thermal stress peaks of key components, enhances system reliability and thermal protection capabilities, and improves cycle efficiency and energy management capabilities.

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Abstract

The application relates to the technical field of aero-engine thermal management, and discloses a hydrogen fuel aero-engine thermal energy management architecture and method based on double intermediate media, which utilizes the low-temperature characteristics of hydrogen fuel as a primary cold source, utilizes high-temperature components under extreme conditions as a heat source, precisely releases cold energy through a first heat exchange medium, carries and transports a heat load through a second heat exchange medium, thereby constructing a multistage thermal energy gradient utilization chain of "high-temperature protection-middle-temperature heat recovery-low-temperature precooling" to form a double-intermediate heat exchange medium cooperative heat transfer architecture, realizing multistage gradient utilization and precise matching of hydrogen fuel cold energy and high-temperature component waste heat, breaking through the technical bottleneck of hydrogen fuel aero-engine thermal efficiency and system integration, significantly improving cycle efficiency while performing thermal protection, reducing the temperature and thermal stress peak value of key components, and avoiding problems such as low thermal efficiency, insufficient waste heat recovery, insufficient system reliability and lack of thermal protection capability in existing hydrogen fuel aero-engine thermal energy management.
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Citation Information

Patent Citations

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