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An experimental approach to thermochemical conversion of a fuel particle in a fluidized bed

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  • Salmasi, A.
  • Shams, M.
  • Chernoray, V.

Abstract

Measuring the temperature of a fuel particle during the thermochemical process inside the fluidized bed is of great importance in order to obtain detailed knowledge of the conversion behavior of the fuel particle and so optimize the combustion performance. In this study a number of experiments were done in order to register the temperature and hydrodynamics of a biomass fuel particle in a fluidized bed during the devolatilization process of a biomass particle. The experiments were done in a 2D fluidized bed with a front transparent window in order to use the particle image velocimetry (PIV) method to obtain information on the hydrodynamics of the fuel particle and inert bed material inside the bed. A thermocouple was also used to measure the temperature of the particle during the conversion. Experiments were done at a fluidized bed temperature and fluidization velocity in the range of 350–450 °C and 0.2–0.6 m/s, respectively. The effect of the bed’s temperature and fluidization velocity on the drying and devolatilization process of the biomass fuel particle was investigated. The results indicate that the bed’s temperature and fluidization velocity have a significant effect on the mass and heat transfer between the fuel particle and the bed during the conversion process.

Suggested Citation

  • Salmasi, A. & Shams, M. & Chernoray, V., 2018. "An experimental approach to thermochemical conversion of a fuel particle in a fluidized bed," Applied Energy, Elsevier, vol. 228(C), pages 524-534.
  • Handle: RePEc:eee:appene:v:228:y:2018:i:c:p:524-534
    DOI: 10.1016/j.apenergy.2018.06.125
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    References listed on IDEAS

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    1. Bu, Changsheng & Liu, Daoyin & Chen, Xiaoping & Pallarès, David & Gómez-Barea, Alberto, 2014. "Ignition behavior of single coal particle in a fluidized bed under O2/CO2 and O2/N2 atmospheres: A combination of visual image and particle temperature," Applied Energy, Elsevier, vol. 115(C), pages 301-308.
    2. Fang, Dong-dong & Chen, Jia & Zhang, Li-hui & Duan, Feng & Wang, Ping & Chyang, Chien-Song, 2017. "Experimental study on the shrinkage characteristics and devolatilization time of wood in a turbulent fluidized bed combustor using computed tomography," Energy, Elsevier, vol. 141(C), pages 348-357.
    3. Chen, Jia & Fang, Dongdong & Duan, Feng, 2018. "Pore characteristics and fractal properties of biochar obtained from the pyrolysis of coarse wood in a fluidized-bed reactor," Applied Energy, Elsevier, vol. 218(C), pages 54-65.
    4. Salinero, J. & Gómez-Barea, A. & Fuentes-Cano, D. & Leckner, B., 2018. "The influence of CO2 gas concentration on the char temperature and conversion during oxy-fuel combustion in a fluidized bed," Applied Energy, Elsevier, vol. 215(C), pages 116-130.
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    Cited by:

    1. Zhou, Ling & Han, Chen & Bai, Ling & Li, Wei & El-Emam, Mahmoud Ahmed & Shi, Weidong, 2020. "CFD-DEM bidirectional coupling simulation and experimental investigation of particle ejections and energy conversion in a spouted bed," Energy, Elsevier, vol. 211(C).
    2. Yang, Shiliang & Zhou, Tao & Wei, Yonggang & Hu, Jianhang & Wang, Hua, 2020. "Dynamical and thermal property of rising bubbles in the bubbling fluidized biomass gasifier with wide particle size distribution," Applied Energy, Elsevier, vol. 259(C).

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