Generalized drying curves in conductive/convective paper drying

Lima, O. C. Motta; Pereira, Nehemias Curvelo; Machado, Miguel A.

doi:10.1590/s0104-66322000000400018

Cited by 15 publications

(5 citation statements)

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“…Theoretical bases of generalized drying curve are based mainly on hypothesis that the relative drying coefficient connects the drying rate in the first and the second period. [41,42] In Figure 11, the generalized drying curve for ammonium sulfate is presented. [41,42] In Figure 11, the generalized drying curve for ammonium sulfate is presented.…”

Section: Semi-empirical Methods Of Analysis Of Fluidized Bed-dryingmentioning

confidence: 99%

Batch Drying Kinetics in a Two-Zone Bubbling Fluidized Bed

Ciesielczyk

2005

Drying Technology

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This article deals with investigation and modeling of batch drying process of solids in fluidized bed apparatus. There has been used model of fluidized bed drying, which consists two zones: emulsion zone and bubbling zone with taking into consideration the presence of solid particles in the bubbles. The results of theoretical expectations that arise from simulation calculations have been verified with experimental data obtained with the use of fluidized bed dryer 0.225 m in diameter. A drying process of silica gel, sand, and ammonium sulfate has been tested. To verify the model, the concept of a generalized drying curve has also been employed.

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Section: Semi-empirical Methods Of Analysis Of Fluidized Bed-dryingmentioning

confidence: 99%

Batch Drying Kinetics in a Two-Zone Bubbling Fluidized Bed

Ciesielczyk

2005

Drying Technology

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“…Motta Lima et al [90][91][92] performed both experimental and modeling work using the concept of generalized drying rate curves. Initially, the paper [90,91] was not supported on the heated surface but later a dryer felt was also added. [92] Good agreement was found between the experimental and modeled data.…”

Section: Dryer Simulation Modelsmentioning

confidence: 99%

Drying of paper: A review 2000–2018

Stenström

2019

Drying Technology

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Drying of paper during 2000-2018 is reviewed. The review includes new drying processes, multi-cylinder dryers, tissue and impingement drying, TAD-drying, infrared drying and energy use for drying of paper. It includes general aspects of infrared dryers but not drying of coated papers. Paper quality aspects, paper shrinkage and paper isotherms are not included. Impingement drying has been the most successful new technology with several applications while others such as impulse drying has not been commercialized mainly due to problems with paper quality parameters. One promising development is the introduction of steel instead of cast iron cylinders with increased heat transfer reducing the number of cylinders. Future research should focus on modeling the internal transport phenomena and to couple these phenomena to paper shrinkage and quality parameters. The influence of the fabric for the drying process needs more attention, understanding the drying process for new components such as microfibrillar cellulose in the stock and reducing energy use and increasing the amount of renewable energies for drying of paper.

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“…Motta Lima et al [8] studied the application of the drying curves generalization methodologies (GDC and NDRC) to natural convection drying of short-fiber cellulose inside an oven and to natural and forced convection ambient air drying of short-fiber cellulose. Very good results, especially for the generalized drying curves, were obtained.…”

Section: Generalized Drying and Drying Rate Curvesmentioning

confidence: 99%

“…(8) (theoretical) determinated by d SL ¼ (0.200 AE 0.005 m) and 2400 kJ=kg for the knit fabric sample convective drying. FIG.…”

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Analysis of Drying Kinetics and Moisture Distribution in Convective Textile Fabric Drying

2006

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The drying process of crude cotton fabric is analyzed under two main aspects: analysis of moisture distribution inside the textile sheet, and analysis of certain operational convective drying process variables. Experimental apparatus consisted of a drying chamber in which samples of pure cotton textile were suspended inside the drying chamber and exposed to a convective hot air flow. The influence of the operational variables on the drying process behavior was studied by two different ways with generalized drying curves. The behavior of moisture distribution profiles was compared to average moisture content of the textile fabric verifying whether average values were able to represent the textile moisture content during the drying process.

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Generalized drying curves in conductive/convective paper drying

Cited by 15 publications

References 0 publications

Batch Drying Kinetics in a Two-Zone Bubbling Fluidized Bed

Batch Drying Kinetics in a Two-Zone Bubbling Fluidized Bed

Drying of paper: A review 2000–2018

Analysis of Drying Kinetics and Moisture Distribution in Convective Textile Fabric Drying

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