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Numerical analysis of flowing cracked hydrocarbon fuel inside cooling channels in view of thermal management

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  • Bao, Wen
  • Zhang, Silong
  • Qin, Jiang
  • Zhou, Weixing
  • Xie, Kaili

Abstract

Thermal management of fuel is very important for the cooling system of an advanced engine. In order to study the 3-D phenomena of fuel flow with cracking reaction in the cooling channels and their effect on the utilization of fuel heat sink, numerical models of cracking fuel flow in an asymmetrically heated rectangular tube are built on the basis of the real fuel thermophysical properties using commercial software and validated through experiments in a conversion range from 0% to 76%. The simulation results indicate that the velocity, temperature and conversion of fuel flow exhibit a clear nonuniformity in the cross-section of the rectangular tube, causing the nonuniformities of physical and chemical heat sinks. Compared to the situation without chemical reaction, due to the fact that chemical reaction can slightly reduce the nonuniformity of temperature field, the nonuniformity of physical heat sink resulting from the temperature field can be slightly reduced. However, the nonuniformity of total heat sink can be dramatically reduced by chemical reaction because the chemical heat sink is one of the major components of total heat sink, and unlike physical heat sink, chemical heat sink shows much less nonuniformity under the influence of both temperature and velocity.

Suggested Citation

  • Bao, Wen & Zhang, Silong & Qin, Jiang & Zhou, Weixing & Xie, Kaili, 2014. "Numerical analysis of flowing cracked hydrocarbon fuel inside cooling channels in view of thermal management," Energy, Elsevier, vol. 67(C), pages 149-161.
    • Handle: RePEc:eee:energy:v:67:y:2014:i:c:p:149-161
    DOI: 10.1016/j.energy.2014.01.044
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    1. Zare, V. & Mahmoudi, S.M.S. & Yari, M., 2013. "An exergoeconomic investigation of waste heat recovery from the Gas Turbine-Modular Helium Reactor (GT-MHR) employing an ammonia–water power/cooling cycle," Energy, Elsevier, vol. 61(C), pages 397-409.
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    Cited by:

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    3. Wang, Ke & Fan, Wei & Lu, Wei & Chen, Fan & Zhang, Qibin & Yan, Chuanjun, 2014. "Study on a liquid-fueled and valveless pulse detonation rocket engine without the purge process," Energy, Elsevier, vol. 71(C), pages 605-614.
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    8. Zhang, Silong & Qin, Jiang & Bao, Wen & Feng, Yu & Xie, Kaili, 2014. "Thermal management of fuel in advanced aeroengine in view of chemical recuperation," Energy, Elsevier, vol. 77(C), pages 201-211.
    9. Sung-rok Hwang & Hyung Ju Lee, 2023. "Comparison and Evaluation of Transport Property Prediction Performance of Supercritical Hydrocarbon Aviation Fuels and Their Pyrolyzed Products via Endothermic Reactions," Energies, MDPI, vol. 16(13), pages 1-15, July.
    10. Zhang, Silong & Cui, Naigang & Xiong, Yuefei & Feng, Yu & Qin, Jiang & Bao, Wen, 2017. "Effect of channel aspect ratio on chemical recuperation process in advanced aeroengines," Energy, Elsevier, vol. 123(C), pages 9-19.
    11. Feng, Yu & Liu, Yuna & Cao, Yong & Gong, Keyu & Liu, Shuyuan & Qin, Jiang, 2020. "Thermal management evaluation for advanced aero-engines using catalytic steam reforming of hydrocarbon fuels," Energy, Elsevier, vol. 193(C).
    12. Yiwei Dong & Ertai Wang & Yancheng You & Chunping Yin & Zongpu Wu, 2019. "Thermal Protection System and Thermal Management for Combined-Cycle Engine: Review and Prospects," Energies, MDPI, vol. 12(2), pages 1-51, January.
    13. Zhang, Duo & Qin, Jiang & Feng, Yu & Ren, Fengzhi & Bao, Wen, 2014. "Performance evaluation of power generation system with fuel vapor turbine onboard hydrocarbon fueled scramjets," Energy, Elsevier, vol. 77(C), pages 732-741.
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