Steady-State Modeling of Multi-Cylinder Dryers in a Corrugating Paper Machine

Ghodbanan, Shaaban; Alizadeh, Reza; Shafiei, Sirous

doi:10.1080/07373937.2015.1020161

Cited by 15 publications

(5 citation statements)

References 15 publications

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“…Gardner [95] developed a model without taking internal transport phenomena into account which showed good agreement between measured and calculated sheet average moisture content. Ghodbanan et al [96] developed a model for a dryer on a corrugating paper machine. No internal transport was included and the model estimated the TAPPI drying rate with about an error of 2%.…”

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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Section: Dryer Simulation Modelsmentioning

confidence: 99%

Drying of paper: A review 2000–2018

Stenström

2019

Drying Technology

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“…The applied model has been developed based on the mass and energy balance relationships in which the heat of sorption and its variations with paper temperature and humidity changes have been taken into account in the falling rate period of the paper drying. Full details of formulation to develop the applied model can be found elsewhere [13,14]. The operating conditions and paper properties of the machine are tabulated in tab.…”

Section: Machine Specifications and Physical Propertiesmentioning

confidence: 99%

Optimization for energy consumption in drying section of fluting paper machine

2017

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Non-linear programming optimization method was used to optimize total steam and air consumption in the dryer section of multi-cylinder fluting paper machine. Equality constraints of the optimization model were obtained from specified process blocks considering mass and energy balance relationships in drying and heat recovery sections. Inequality constraints correspond to process parameters such as production capacity, operating conditions, and other limitations. Using the simulation, the process parameters can be optimized to improve the energy efficiency and heat recovery performance. For a corrugating machine, optimized parameters show the total steam use can be reduced by about 11% due to improvement of the heat recovery performance and optimization of the operating conditions such as inlet web dryness, evaporation rate, and exhaust air humidity, accordingly total steam consumption can be decreased from about 1.71 to 1.53 tonnes steam per tonne paper production. The humidity of the exhaust air should be kept as high as possible to optimize the energy performance and avoid condensation in the pocket dryers and hood exhaust air. So the simulation shows the supply air should be increased by about 10% to achieve optimal humidity level which was determined about 0.152 kgH 2 O/(kg dry air).

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“…Simulation and energy system optimization models can realize the accurate monitoring of key variables and reduce the energy consumption of the drying process. Many publications have been devoted to the modeling of processes occurring in the drying section of a paper machine [18][19][20][21][22][23]. Mobarakeh et al [24] developed a model to analyze energy consumption (heat and electricity) and CO 2 emission in the main processes involved in paper production.…”

Section: Introductionmentioning

confidence: 99%

Possibilities of Reducing the Heat Energy Consumption in a Tissue Paper Machine—Case Study

2023

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The article presents studies on the impact of the significant process parameters of a paper machine with a Yankee cylinder on its production capacity and heat energy consumption for drying the paper web. Parameters such as machine speed, web moisture content before and after pressing, parameters of steam supplied to the cylinder and parameters of hot air flowing from the nozzles of the hood were analyzed. The study’s results were used to optimize production to improve the energy efficiency and performance of the machine. In order to use the possible methods of improving the production capacity and heat energy consumption, the parameters of the production process were measured and the basic indicators characterizing the operation of the machine were calculated in the Yankee cylinder–dryer hood system. The correct functioning of the machine components and the possibility of their modernization were also analyzed. Technological and construction changes introduced based on the research results made it possible to increase the production capacity by 10% and to reduce the consumption of heat energy per 1 ton of produced paper by 16.3%. The article presents a description of changes in the technology of paper production and modernization of the tissue machine made in the years 2013–2022.

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Steady-State Modeling of Multi-Cylinder Dryers in a Corrugating Paper Machine

Cited by 15 publications

References 15 publications

Drying of paper: A review 2000–2018

Drying of paper: A review 2000–2018

Optimization for energy consumption in drying section of fluting paper machine

Possibilities of Reducing the Heat Energy Consumption in a Tissue Paper Machine—Case Study

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