Heat Exchange of Tubular Surfaces in a Bubbling Boiling Bed

Heat Exchange of Tubular Surfaces in a Bubbling Boiling Bed

1st Edition - August 1, 2022
  • Authors: Andriy Redko, Oleksandr Redko
  • Paperback ISBN: 9780128226384

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Description

Heat Exchange of Tubular Surfaces in a Bubbling Boiling Bed bridges the gap surrounding the study of a boiling bed of large particles with smooth and ribbed pipes, as well as pipe bundles. The book's authors combine results from experimental studies with their varied practical experience in fields of boiling bed applications across various disciplines such as chemical, pharmacological, metallurgical and power engineering industries. This book provides readers with a deep practical understanding of how to calculate the heat engineering parameters of ribbed pipe bundles in a boiling bed, along with the hydrodynamics of the boiling bed. Researchers and experts involved in the design, development and operation of boiling bed apparatus will follow step-by-step methods and procedures to gain knowledge of the hydrodynamic and heat exchange elements of the boiling bed which can be applied to their own settings. The effect of gas velocity, size and properties of the dispersed material, the geometric characteristics of the pipe bundle is also presented, alongside data on the effect of high temperature and high pressure of gas in a dispersed system on heat exchange intensity.

Key Features

  • Covers the design of apparatus and devices with a boiling bed in various industries
  • Includes criteria equations for calculating heat exchange, as well as data for the calculation of furnace devices
  • Presents the structure analysis of the boiling bed with submerged pipe bundles and the calculation of the hydrodynamic resistance of the boiling bed

Readership

Engineers and specialists involved in the development, design and operation of boiling-bed apparatus; graduate students and researchers in thermal energy; professors on the boiling-bed and the design and operation of boiling-bed apparatus

Table of Contents

  • 1. Hydrodynamics of a fluidized bed with immersed surfaces.
    1.1 The structure of a fluidized bed near the immersed heat transfer surfaces.
    1.2 Hydrodynamics of a fluidized bed in tube bundles.
    1.3 Porosity and gas velocity in the near-wall layer.
    1.4 Local intensity of external heat-exchange.
    1.5 The average intensity of the heat transfer process.
    1.6 Intensification of the external heat-exchange process of the surface in a fluidized bed.

    2. Methods and experimental facilities for the study of combustion and heat transfer processes in fluidized bed furnaces.
    2.1 Gas-dynamic installations of open and closed types.
    2.2 Characteristics of geometrical parameters of ribbing tubes and applied dispersed materials.
    2.3 Comparison of methods of full and local thermal modeling.
    2.4 Mathematical planning of the experiment.

    3. Heat exchange of ribbed tubes in a fluidized bed of large particles in relation to the conditions of fuel combustion.
    3.1 Horizontal tube with longitudinal ribs.
    3.2 Horizontal tube with transverse ribs.
    3.3 Horizontal tube with longitudinally transverse ribs.
    3.4 Horizontal smooth and ribbed profiled tube.
    3.5 Effect of thermal conductivity of the fluidizing gas and rib material on heat transfer.
    3.6 Comparison of heat-exchange efficiency of various types of tube ribbing in a fluidized bed

    4. Heat transfer, aerodynamic resistance and erosion wear of bundles of ribbed tubes in a fluidized bed of large particles.
    4.1 Heat transfer of round-and-profiled-tube bundles with longitudinal ribs.
    4.2 Heat transfer of tube bundles with transverse ribs.
    4.3 Heat transfer of tube bundles with longitudinally transverse ribs.
    4.4 of a fluidized bed with an immersed bundle of ribbed tubes.
    4.5 Erosion wear of finned tube bundles in a fluidized bed.
    4.6 Efficiency of ribbed surfaces in a fluidized bed.

    5. Intensification of heat exchange between a fluidized bed and a bundle of horizontal tubes.
    5.1 Heat transfer of smooth-and-ribbed-tube bundles in a high-temperature fluidized bed.
    5.2 Components of complex heat exchange in a coarse high-temperature fluidized bed.
    5.3 Experimental study of local heat exchange of ribbed tubes in a fluidized bed.
    5.4 Heat transfer of ribbed tubes in a fluidized bed under pressure.
    5.5 Heat transfer of ribbed tubes in a fluidized bed under vibration conditions.

Product details

  • No. of pages: 300
  • Language: English
  • Copyright: © Academic Press 2022
  • Published: August 1, 2022
  • Imprint: Academic Press
  • Paperback ISBN: 9780128226384

About the Authors

Andriy Redko

Redko Andriy is a Doctor of technical sciences at Kharkiv National University of Construction and Architecture, and Professor in the department of Heat, gas supply, ventilation and using WHR. He defended his PhD dissertation on the problem of gypsum dehydration in a boiling bed under pressure and he is currently researching processes of heat treatment and combustion of various fuels in a boiling bed.

Affiliations and Expertise

Professor, Department of Heat Gas Supply, Ventilation and Use of Thermal Secondary Resources, Kharkiv National University of Civil Engineering and Architecture, Kharkiv, Ukraine

Oleksandr Redko

Redko Oleksandr is Doctor of technical sciences and Professor, department of Heat, gas supply, ventilation and using WHR at the Kharkiv National University of Construction and Architecture. He defended his Dr. S thesis on the problem of intensification of heat processes in a boiling bed and is currently researching processes of low-grade fuel combustion in a boiling bed.

Affiliations and Expertise

Chairman, Department of Heat Gas Supply, Ventilation and Use Thermal of Secondary Resources, Kharkiv National University of Civil Engineering and Architecture, Kharkiv, Ukraine