Numerical investigation of pyrolysis coking characteristics of supercritical hydrocarbon fuels in sinusoidal cooling channels

Zhu, Mingyin; Han, Huaizhi; Gao, Ruichen; Xie, Bensheng

doi:10.1016/j.fuel.2023.127881

Cited by 4 publications

(1 citation statement)

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“…However, the effect of the curved bend on pyrolysis was not analyzed. Zhu et al [8] performed an investigation to examine the occurrence of coking during pyrolysis in sinusoidal channels. The study revealed a lower coking mass compared to the smooth channel, yet it did not enhance pyrolysis in this structure.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of flow and heat transfer of n-decane in composite tube under supercritical pressure

Ma,

Gao,

Zhao

et al. 2024

J. Phys.: Conf. Ser.

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As scramjet propulsion systems face big challenges in thermal protection performance, regenerative cooling techniques have been proposed to improve heat transfer behavior. This study introduced a novel design of composite cooling channel with bends and conducted computational fluid dynamics (CFD) simulations to analyze the flow characteristics, heat transfer behavior, and pyrolysis of hydrocarbon fuel within the tube. Results show that the presence of bends significantly enhances heat transfer, leading to an increased temperature and conversion. The composite tube with 15 bends demonstrated a 19.9% increase in conversion rate compared to the straight tube. Hence, proper structure design can improve the regenerative cooling performance which may promote the development of scramjet propulsion systems.

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Section: Introductionmentioning

confidence: 99%