Effect of secondary flow and secondary reactions on pyrolysis and heat transfer of supercritical hydrocarbon aviation fuel in a U-bend tube

Han, Hongbo; Wang, Renting; Bao, Zewei

doi:10.1016/j.energy.2024.130518

Energy

2024

DOI: 10.1016/j.energy.2024.130518

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Effect of secondary flow and secondary reactions on pyrolysis and heat transfer of supercritical hydrocarbon aviation fuel in a U-bend tube

Hongbo Han,

Renting Wang,

Zewei Bao

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2024

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Cited by 3 publications

References 45 publications

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Mechanism analysis of turbulent convective heat transfer of supercritical carbon dioxide in serpentine tubes

Khoshvaght-Aliabadi,

Zakizadeh-Matak

2024

Applied Thermal Engineering

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Mechanism analysis of turbulent convective heat transfer of supercritical carbon dioxide in serpentine tubes

Khoshvaght-Aliabadi,

Zakizadeh-Matak

2024

Applied Thermal Engineering

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Interpretable machine learning-based prediction and analysis of supercritical fluid heat transfer characteristics at different boundary conditions

Li,

Song,

Liu

2024

Energy

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Convection Heat-Transfer Characteristics of Supercritical Pressure RP-3 in Horizontal Microchannels

Zhang,

Wang,

et al. 2024

Energies

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To enhance the heat-transfer performance of scramjet engines, a numerical simulation was conducted on the heat-transfer process of RP-3 aviation kerosene under supercritical pressure within a horizontal micro-fine circular tube. The intrinsic mechanism of the heat-transfer process was analyzed, summarizing the impacts of mass flux, inlet temperature, and gravitational acceleration. Furthermore, four commonly used buoyancy criterion numbers were compared and evaluated. The results indicate that the heat-transfer process can be divided into five phases: heating inlet phase, normal heat-transfer phase, heat-transfer deterioration phase, heat-transfer enhancement phase, and high-temperature normal heat-transfer phase. The heating inlet phase is significantly influenced by the inlet temperature, while the heat-transfer deterioration is affected both by the thermal property variations of the aviation kerosene and the buoyancy effects. Lower mass flux and hypergravity conditions all exacerbate heat-transfer deterioration. Inlet temperature, however, does not affect the heat-transfer pattern. Among the criteria, Grq/Grth provides the best prediction of buoyancy effects in horizontal circular tubes.

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Effect of secondary flow and secondary reactions on pyrolysis and heat transfer of supercritical hydrocarbon aviation fuel in a U-bend tube

Cited by 3 publications

References 45 publications

Mechanism analysis of turbulent convective heat transfer of supercritical carbon dioxide in serpentine tubes

Mechanism analysis of turbulent convective heat transfer of supercritical carbon dioxide in serpentine tubes

Interpretable machine learning-based prediction and analysis of supercritical fluid heat transfer characteristics at different boundary conditions

Convection Heat-Transfer Characteristics of Supercritical Pressure RP-3 in Horizontal Microchannels

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