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PYROLYSIS IN POROUS MEDIA: PART 2. NUMERICAL ANALYSIS AND COMPARISON TO EXPERIMENTS

Volume 16, Issue 9, 2013, pp. 857-873
DOI: 10.1615/JPorMedia.v16.i9.60
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ABSTRACT

Only limited studies are available experimentally to investigate hydrocarbon fuel pyrolysis, which can be of practical interest for the active cooling of head-loaded components in aerospace vehicles such as combustors in rocket engines. The numerical simulation is an additional way to investigate the related phenomena (heat and mass transfer with chemistry). After a first-code validation with experiments based upon inert gases, the code is further extended toward permeation with reactive dodecane and a reasonable agreement is found. The experimental accuracy of the permeability's' determination is confirmed numerically to be within ±30%. Numerically it is shown that this accuracy is due to strong flow spatial heterogeneities. The border effect of the test cell is found to be related to the permeable medium thickness, whereas the temperature field is correlated to the reaction zone. Two different kinetic mechanisms are used to investigate the chemistry effect on the heat and mass transfer. They also provide a better analysis of the fuel pyrolysis and of the products' formation.

CITED BY
  1. Jiang Yuguang, Qin Jiang, Xu Yaxing, Zhang Silong, Chetehouna Khaled, Gascoin Nicolas, Bao Wen, The influences of the header geometry on hydrocarbon fuel flow distribution in compact parallel channels, Aerospace Science and Technology, 79, 2018. Crossref

  2. Zhang Silong, Li Xin, Zuo Jingying, Qin Jiang, Cheng Kunlin, Feng Yu, Bao Wen, Research progress on active thermal protection for hypersonic vehicles, Progress in Aerospace Sciences, 119, 2020. Crossref

  3. Feng Yu, Jiang Yuguang, Li Xin, Zhang Silong, Qin Jiang, Cao Yong, Huang Hongyan, Numerical study on the influences of heat and mass transfers on the pyrolysis of hydrocarbon fuel in mini-channel, Applied Thermal Engineering, 119, 2017. Crossref

  4. Yuen Anthony Chun Yin, De Cachinho Cordeiro Ivan Miguel, Chen Timothy Bo Yuan, Chen Qian, Liu Hengrui, Yeoh Guan Heng, Multiphase CFD modelling for enclosure fires—A review on past studies and future perspectives, Experimental and Computational Multiphase Flow, 4, 1, 2022. Crossref

  5. Jiang Yuguang, Feng Yu, Zhang Silong, Qin Jiang, Bao Wen, Numerical heat transfer analysis of transcritical hydrocarbon fuel flow in a tube partially filled with porous media, Open Physics, 14, 1, 2016. Crossref

  6. Li Hongli , Li Yunbing , Zhang Qihang , Wang Xinyi , Wang Xin , Jin Pen , THE GAS AND SOLID PRODUCTS CHARACTERISTICS OF SEWAGE SLUDGE PYROLYSIS IN DIFFERENT TEMPERATURE RANGES , Journal of Porous Media, 25, 11, 2022. Crossref

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