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Influence of Aeration on the Hydrodynamic Behavior of a Pressurized Circulating Fluidized Bed

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Fluid Mechanics and Fluid Power – Contemporary Research

Part of the book series: Lecture Notes in Mechanical Engineering ((LNME))

Abstract

In the present investigation, the effect of aeration rate on bed hydrodynamics in the riser of a pressurized circulating fluidized bed (PCFB) has been studied. Experiments are conducted with two different bed inventories, viz. 500 and 750 g. Aeration superficial velocities, U sup  = 0.65, 1.94, and 3.23 m/s respectively are used to observe the change of bed hydrodynamics of the PCFB. Operating velocities of 2.72, 3.4 and 4.08 m/s and pressures of 100, 200, and 250 kPa are maintained for each inventory and aeration rate. It has been observed that the suspension density increases along the riser height with the decrease in aeration rate. The solid circulation rate increases with the increase in aeration rate as well as primary air flow rate. The present study will help in optimizing the aeration rate for smooth operation of the non-mechanical valve or the stand pipe without obstruction of inventory material.

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Acknowledgement

The authors would like to thank Marie Curie Actions—International Research Staff Exchange Scheme (IRSES) (iComFluid—International Collaboration on Computational Modelling of Fluidised Bed Systems for Clean Energy Technologies), for funding the research. We also thank Dr. Haitham Issa at Tishreen University for offering us TARQUIME software.

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Authors and Affiliations

  1. Department of Mechanical Engineering, IITG, Guwahati, 781039, India

    Azd Zayoud, P. Mahanta & U. K. Saha

  2. School of Engineering, Cranfield University, Bedfordshire, MK43OAL, UK

    Yerbol Sarbassov &  Sai Gu

Authors
  1. Azd Zayoud
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  2. Yerbol Sarbassov
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  3. P. Mahanta
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  4. U. K. Saha
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  5. Sai Gu
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Corresponding author

Correspondence to U. K. Saha .

Editor information

Editors and Affiliations

  1. Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, India

    Arun K. Saha

  2. Department of Aerospace Engineering, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, India

    Debopam Das

  3. Department of Civil Engineering, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, India

    Rajesh Srivastava

  4. Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, India

    P. K. Panigrahi

  5. Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, India

    K. Muralidhar

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Azd Zayoud, Yerbol Sarbassov, Mahanta, P., Saha, U.K., Sai Gu (2017). Influence of Aeration on the Hydrodynamic Behavior of a Pressurized Circulating Fluidized Bed. In: Saha, A., Das, D., Srivastava, R., Panigrahi, P., Muralidhar, K. (eds) Fluid Mechanics and Fluid Power – Contemporary Research. Lecture Notes in Mechanical Engineering. Springer, New Delhi. https://doi.org/10.1007/978-81-322-2743-4_11

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  • DOI: https://doi.org/10.1007/978-81-322-2743-4_11

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  • Publisher Name: Springer, New Delhi

  • Print ISBN: 978-81-322-2741-0

  • Online ISBN: 978-81-322-2743-4

  • eBook Packages: EngineeringEngineering (R0)

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