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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2026.5
- 수록면
- 1 - 22 (22page)
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초록· 키워드
An experimental study was conducted to investigate the pyrolysis characteristics of hydrocarbon aviation fuels and to develop global thermal cracking reaction models using a batch reactor setup. The endothermic pyrolysis of JP-8, a representative kerosene-based aviation fuel, was examined at 3 MPa and 525-625°C, with residence times ranging from 100 to 220 s. Maximum fuel conversion reached ~76%, with a gas yield of ~37%. Major gaseous products included H₂, CH₄, C₂H₄, C₂H<sub>6</sub>, C₃H<sub>6</sub>, and C₂H<sub>8</sub>, whose mass fractions generally increased with conversion. Liquid products, comprising over 100 compounds, were analyzed according to their parent molecular structures, revealing a shift from linear paraffin dominance at low conversion to increased aromatic content at higher conversion. GC-MS analysis yielded an average chemical formula of C<sub>11.04</sub>H<sub>21.70</sub> for JP-8, which guided the development of a surrogate fuel and a global one-step pyrolysis model under the PPD (Proportional Product Distribution) assumption for conversions below 30%. CFD simulations applying the model to a regenerative-cooled channel accurately predicted product distributions, with most predictions within ±20% of experimental values. The results provide key insights into JP-8 pyrolysis under supercritical conditions and demonstrate the model’s applicability for predicting fuel flow and decomposition behavior in regenerative-cooled channels, supporting the design and analysis of regenerative cooling systems for hypersonic vehicles.
#Hypersonic Cruise Vehicle
#Scramjet Engine
#Regenerative Cooling
#Endothermic Decomposition
#Proportional Product Distribution
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목차
- ABSTRACT
- 1. Introduction
- 2. Experimental Setup
- 3. Results of Pyrolysis Experiments
- 4. Development of global reaction PPD model
- 5. Model Implementation in Numerical Simulation
- 6. Summary and Conclusion
- References
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