Pneumatic drying: the use of large-scale experimental data in a design procedure

Baeyens, Jan; Gauwbergen, D. Van; Vinckier, Inge

doi:10.1016/0032-5910(94)02945-k

Cited by 60 publications

(39 citation statements)

References 3 publications

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“…The mostly suitable for pneumatic and cyclone dryers are those given by Baeyens et al (1995) [20] and De Brandt (1974) [21] . The Chilton and Colburn analogy for heat and mass-transfer are used as follows: …”

Section: Drying Model Equations -Heat and Mass Transfermentioning

confidence: 99%

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Numerical Simulation of Pneumatic and Cyclonic Dryers Using Computational Fluid Dynamics

Jamaleddine¹,

Ray²

2011

Mass Transfer in Chemical Engineering Processes

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Section: Drying Model Equations -Heat and Mass Transfermentioning

confidence: 99%

“…For both cases, the experimental data, physical and material properties were taken from Paixao and Rocha (1998) [25] for sand, and Baeyens et al (1995) [26] for PVC as shown in Table 1. Both models were meshed and simulated in a three-dimensional configuration as shown in Figures 1 and 2.…”

Section: Casementioning

confidence: 99%

Numerical Simulation of Pneumatic and Cyclonic Dryers Using Computational Fluid Dynamics

Jamaleddine¹,

Ray²

2011

Mass Transfer in Chemical Engineering Processes

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“…In view of the particle size under consideration (Յ30 m), the applied velocities (approximately 1-4 m/sec in the transport section and approximately 10 Ϫ2 m/sec in the cake) and the gas properties (density and viscosity at operating temperature), the flow regime is laminar and the Sherwoodnumber is proportional to the Reynolds-number, 20 thus simplifying eqs 4 and 5 through…”

Section: Adsorption Of Gaseous Pcdd/f In Entrained Flowmentioning

confidence: 99%

Removal of PCDD/F from Incinerator Flue Gases by Entrained-Phase Adsorption

Everaert

Baeyens

Degrève

2002

Journal of the Air & Waste Management Association

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The emission abatement of polychlorinated dioxins and furans (PCDD/F) issued from municipal solid waste incineration is growing in importance because of more stringent emission standards and general concern about their toxic characteristics. These substances cannot be separated by conventional gas cleanup processes but are successfully removed through adsorption onto carbonaceous materials. The simplest technique is the entrained-phase injection of pulverized adsorbents in the flue gas, followed by fabric filter separation. The various related techniques are briefly reviewed here. Operating conditions and results obtained from Flemish MSWIs are given. The results illustrate the excellent overall removal efficiency. Furans are adsorbed to a slightly higher extent than dioxins.PCDD/F removal by carbonaceous adsorbents is thereafter modeled from first principles for the contribution of both entrained-phase ( 1 ) and cake filtration ( 2 ) to the overall efficiency ( T ). Application of the model equations and comparison of measured and predicted overall efficiencies for the Flemish municipal solid waste incinerators (MSWIs) demonstrate that the approach is meaningful and that the dominant parameters are the operating temperature, the dosage and activity of adsorbent, and the fraction of adsorbent in the filter cake. The model equations enable the MSWI operators to predict the adsorption efficiencies for any combination of operating parameters and to assess the sensitivity of the process to varying operating conditions.

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“…PCD is simple in construction, has low capital cost and short residence time. It allows higher inlet temperature than many other dryers without unduly heating of the products (Baeyens et al, 1995).…”

Section: Introductionmentioning

confidence: 99%

Simulation and Model Validation of a Pneumatic Conveying Drying for Wood Dust Particles

Bhattarai

Kim

2012

Journal of Biosystems Engineering

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Purpose:The simulation model of a pneumatic conveying drying (PCD) for sawdust was developed and verified with the experiments. Method: The thermal behavior and mass transfer of a PCD were modeled and investigated by comparing the experimental results given by a reference (Kamei et al. 1952) to validate the model. Momentum, energy and mass balance, one dimensional first order ordinary differential equations, were coded and solved into Matlab V. 7.1.0 (2009). Results: The simulation results showed that the moisture content reduced from 194% to 40% (dry basis), air temperature decreased from 512℃ to 128℃ with the particle residence time of 0.7 seconds. The statistical indicators, root mean square error and R-squared, were calculated to be 0.079, and 0.998, respectively, between the measured and predicted values of moisture content. The relative error between the measured and predicted values of the final pressured drop, air temperature, and air velocity were only 8.96%, 0.39% and 1.05% respectively. Conclusions: The predicted moisture content, final temperature, and pressure drop values were in good agreement with the experimental results. The developed model can be used for design and estimation of PCD system for drying of wood dust particles.

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Pneumatic drying: the use of large-scale experimental data in a design procedure

Cited by 60 publications

References 3 publications

Numerical Simulation of Pneumatic and Cyclonic Dryers Using Computational Fluid Dynamics

Numerical Simulation of Pneumatic and Cyclonic Dryers Using Computational Fluid Dynamics

Removal of PCDD/F from Incinerator Flue Gases by Entrained-Phase Adsorption

Simulation and Model Validation of a Pneumatic Conveying Drying for Wood Dust Particles

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