Abstract In current aircraft designs, jet fuel serves a dual role as a coolant to satisfy the cooling requirements and as a propellant to provide propulsion power, especially in high-performance aircraft. Importantly, thermal oxidative stability is one of the key issues for jet fuels that serve as coolants since the formation of deposits during heat exchange will directly influence the operational safety of the aircraft. This review summarizes the research progress on the thermal oxidation and deposition of jet fuel during autoxidation, with particular emphasis on the research performed over the past few decades. The precise concept of thermal oxidative stability is first introduced. Then, the oxidation and deposition mechanisms of jet fuel and the corresponding reaction kinetics during thermal stress are comprehensively summarized. After that, different evaluation techniques (oxidation and deposition), as well as the factors influencing the thermal oxidative stability of jet fuel (chemical and physical factors), are presented in detail. Finally, the corresponding improvement methods for delaying fuel oxidation and mitigating deposition are proposed. This review will be beneficial for the design of jet fuel with high thermal oxidative stability and the further development of high-performance aircraft.

中文翻译：

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喷气燃料热氧化稳定性综述

摘要 在当前的飞机设计中，喷气燃料具有双重作用，即满足冷却要求的冷却剂和提供推进动力的推进剂，尤其是在高性能飞机中。重要的是，热氧化稳定性是用作冷却剂的喷气燃料的关键问题之一，因为热交换过程中沉积物的形成将直接影响飞机的运行安全。本综述总结了自氧化过程中喷气燃料热氧化和沉积的研究进展，特别强调了过去几十年的研究。首先介绍了热氧化稳定性的精确概念。然后，综合总结了喷气燃料在热应力下的氧化沉积机理以及相应的反应动力学。之后，详细介绍了不同的评估技术（氧化和沉积），以及影响喷气燃料热氧化稳定性的因素（化学和物理因素）。最后，提出了相应的延迟燃料氧化和减轻沉积的改进方法。该综述将有利于高热氧化稳定性喷气燃料的设计和高性能飞机的进一步发展。