배치반응기 실험장치를 이용한 초임계 n-dodecane의 열분해 특성 연구
Experimental Study on Thermal Decomposition Characteristics of Supercritical n-Dodecane by Using a Batch Reactor System
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초록
In an active regenerative cooling system for hypersonic cruise vehicles, hydrocarbon aviation fuel is used as a coolant, absorbing heat within the system to reach a supercritical state. This causes the fuel to undergo endothermic decomposition into hydrogen and various low-molecular-weight hydrocarbons, significantly impacting the performance and efficiency of the regenerative cooling system. In this study, an experimental system was established to investigate the thermal cracking characteristics of hydrocarbon aviation fuel under various supercritical conditions. The system design, experimental methods, and analysis techniques are described, and pyrolysis experiments of n-dodecane were conducted to compare the results with existing experimental data. In particular, the activation energy was obtained to confirm the reliability of the batch reactor experimental system.
Abstract
In an active regenerative cooling system for hypersonic cruise vehicles, hydrocarbon aviation fuel is used as a coolant, absorbing heat within the system to reach a supercritical state. This causes the fuel to undergo endothermic decomposition into hydrogen and various low-molecular-weight hydrocarbons, significantly impacting the performance and efficiency of the regenerative cooling system. In this study, an experimental system was established to investigate the thermal cracking characteristics of hydrocarbon aviation fuel under various supercritical conditions. The system design, experimental methods, and analysis techniques are described, and pyrolysis experiments of n-dodecane were conducted to compare the results with existing experimental data. In particular, the activation energy was obtained to confirm the reliability of the batch reactor experimental system.