Cooling capacity optimization of hydrocarbon fuels for regenerative cooling

Wang, Jiao; Jin, Huixia; Gao, Hui; Wen, Dongsheng

doi:10.1016/j.applthermaleng.2021.117661

Cited by 23 publications

(1 citation statement)

References 45 publications

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“…The chemical heat sink comes from endothermic reactions. When the temperature reaches above 550 °C, the thermal cracking of fuel can provide a limited increase in cooling capacity. − To improve the fuel conversion rate and olefin selectivity in cracked products, , catalytic cracking of hydrocarbons is carried out to increase the chemical heat sink. − However, the initial temperature of cracking is high and is accompanied by severe coke deposition on the channel wall. , Thus, the temperature scope of fuel for regenerative cooling is limited.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Ethanol-Assisted Catalytic Steam Reforming of Endothermic Hydrocarbon Fuel

et al. 2023

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Thermal protection is a critical problem in the development of hypersonic aircraft. To enhance the thermal protection capability of hydrocarbon fuel, the ethanol-assisted catalytic steam reforming of endothermic hydrocarbon fuel was proposed. The result shows that the total heat sink can be significantly improved by the endothermic reactions of ethanol. A higher water/ethanol ratio can promote the steam reforming of ethanol and further increase the chemical heat sink. The addition of 10 wt % ethanol at 30 wt % water content can improve the total heat sink by 8–17% at 300–550 °C, which is caused by the heat absorption by phase transition and chemical reactions of ethanol. The reaction region of thermal cracking moves backward, resulting in the suppression of thermal cracking. Meanwhile, the addition of ethanol can inhibit the coke deposition and increase the working temperature upper limit of the active thermal protection.

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