Three dimensional modeling of heat transfer and bed flow in a conical fluidized bed reactor

Abdelmotalib, Hamada Mohmmed; Im, Ik–Tae

doi:10.1016/j.ijheatmasstransfer.2016.10.117

Cited by 15 publications

(2 citation statements)

References 18 publications

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“…Figure 8 shows the average heat transfer coe cients (h avg ) for the various fuel options and the range of excess air (EA), with only EA showing signi cant effects on the h avg . The h avg increases with increasing EA or increasing gas inlet velocity, indicating good agreement with the modeling study of Abdelmotalib and Im [34].…”

Section: Average Heat Transfer Coe Cient For Each Operating Condition...supporting

confidence: 82%

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Effects of Excess Air and Energy Fraction on Heat Transfer for Co-firing of Eucalyptus Bark and Peanut Shell Blended Fuel in a Twin-Cyclonic Swirling Fluidized-Bed Combustor

Sirisomboon,

Sopamart,

Srisamran

2024

Korean J. Chem. Eng.

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Biomass plays an important role in mitigating greenhouse gas (GHG) emissions. However, the major problem in using biomass is that inconsistent amounts are available throughout the year. The use of mixed fuels is one way to solve this problem. Based on the lumped system analysis method, this experimental study investigated the effects of excess air and energy fraction on the heat transfer coe cients of co-ring eucalyptus bark (EB) and peanut shell (PNS) in a twin-cyclonic swirling uidizedbed combustor (TS-FBC). The blended fuel was red at a xed heat rate for various energy fractions of secondary fuel (EF 2 ) and excess air (EA). The radial and axial heat transfer coe cients were observed: the average heat transfer coe cient of each operating condition showed signi cant effects for EA, while the effect for EF 2 was not obvious. The heat transfer coe cient could be improved by up to 11% in the bed region and by as much as 22% in the freeboard area when EA was increased from 40-80%.

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Section: Average Heat Transfer Coe Cient For Each Operating Condition...supporting

confidence: 82%

“…This increased the turbulence of the ow and the surface renewal frequency rate leading to a slightly higher level of heat transfer. The same behavioral trend was found in the conical FBC studied for gas-solid radial heat transfer by using twodimensional (2D) modeling of the air sand bed [34].…”

Section: Local Heat Transfer Coe Cient (H Local )supporting

confidence: 67%

Effects of Excess Air and Energy Fraction on Heat Transfer for Co-firing of Eucalyptus Bark and Peanut Shell Blended Fuel in a Twin-Cyclonic Swirling Fluidized-Bed Combustor

Sirisomboon,

Sopamart,

Srisamran

2024

Korean J. Chem. Eng.

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A study on the particle temperature in a conical fluidized bed using infrared thermography

Abdelmotalib

2018

J Mech Sci Technol

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Experimental investigation and prediction of heat transfer in a swirling fluidized-bed combustor

Sirisomboon

Laowthong

2019

Applied Thermal Engineering

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Three dimensional modeling of heat transfer and bed flow in a conical fluidized bed reactor

Cited by 15 publications

References 18 publications

Effects of Excess Air and Energy Fraction on Heat Transfer for Co-firing of Eucalyptus Bark and Peanut Shell Blended Fuel in a Twin-Cyclonic Swirling Fluidized-Bed Combustor

Effects of Excess Air and Energy Fraction on Heat Transfer for Co-firing of Eucalyptus Bark and Peanut Shell Blended Fuel in a Twin-Cyclonic Swirling Fluidized-Bed Combustor

A study on the particle temperature in a conical fluidized bed using infrared thermography

Experimental investigation and prediction of heat transfer in a swirling fluidized-bed combustor

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