Characterisation and modelling of water wicking and evaporation in capillary porous media for passive and energy-efficient applications

Alberghini, Matteo; Boriskina, Svetlana V.; Asinari, Pietro; Fasano, Matteo

doi:10.1016/j.applthermaleng.2022.118159

Cited by 16 publications

(5 citation statements)

References 48 publications

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“…Based on the above equations, an appropriate closure equation linking S l to p c is provided, as the capillary pressure and a retention model need to be introduced [20]. The capillary pressure p c is defined as the difference between the total pressure and liquid phase at their interface, namely, [21]:…”

Section: Mass Equationmentioning

confidence: 99%

“…where θ l is the normalized saturation content [20], β and n are the material-dependent parameters, m indicates the porous matrix property, and m = 1 − 1/n; at the same time, the relative permeability k l,r and saturation of the liquid-phase S l can be represented as:…”

Section: Mass Equationmentioning

confidence: 99%

“…In other fields, the influence of temperature on effective moisture diffusivity has been studied [34,35]. The logarithm was taken based on Equation (20), and written as Equation ( 23):…”

Section: The Effective Moisture Diffusivity (D Eff ) and Activation E...mentioning

confidence: 99%

“…In other fields, the influence of temperature on effective moisture diffusivity has been studied [34,35]. The logarithm was taken based on Equation (20), and written as Equation ( 23 lnD eff and 1/T were used for plotting, and a line was obtained by fitting, as shown in Figure 13. The activation energies of the tobacco strips' surface and middle were 37.86 kJ/mol and 37.15 kJ/mol, respectively.…”

Section: The Effective Moisture Diffusivity (D Eff ) and Activation E...mentioning

confidence: 99%

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Analysis of Rewetting Characteristics and Process Parameters in Tobacco Strip Redrying Stage

Wang

Jiang

et al. 2022

Applied Sciences

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To study the rewetting characteristics of tobacco strips during the redrying stage, a conjugate heat and mass transfer model of tobacco strips was established based on their physical properties. The fundamental relationship between the multiphysical fields and humidity fields of tobacco strips and the key process parameters was considered in this model, and the feasibility of the model was verified via experiments. Based on this model, the transfer and variation laws of the moisture content, humidification rate, and temperature of tobacco strips under different relative humidity and temperature conditions were studied, and the rewetting process parameters of tobacco strips were determined using COMSOL Multiphysics. The results show that this model can be used to study the rewetting characteristics of tobacco strips during the redrying stage. The rewetting of tobacco strips can be divided into two stages, namely, the accelerated stage and approximate constant rate increase stage, where the former stage has a greater impact on the rewetting effect. The higher the relative humidity and temperature, the greater the change in the moisture content, humidification rate, and effective moisture diffusivity, and the faster the increase rate. The best rewetting effect was achieved when the relative humidity was 85% and the temperature was 55 °C. Under these conditions, the moisture content of the tobacco strips was 11% to 13%, the humidification rate was 0.03 %/s to 0.29 %/s, the highest effective moisture diffusivity was 7.8 × 10−10 m2/s, and the maximum activation energy was 37.86 kJ/mol. This study provides a theoretical basis and data support for analyzing the characteristics of the rewetting process and for optimizing the process parameters.

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Section: Mass Equationmentioning

confidence: 99%

Section: Mass Equationmentioning

confidence: 99%

“…In other fields, the influence of temperature on effective moisture diffusivity has been studied [34,35]. The logarithm was taken based on Equation (20), and written as Equation ( 23):…”

Section: The Effective Moisture Diffusivity (D Eff ) and Activation E...mentioning

confidence: 99%

Section: The Effective Moisture Diffusivity (D Eff ) and Activation E...mentioning

confidence: 99%

See 2 more Smart Citations

Analysis of Rewetting Characteristics and Process Parameters in Tobacco Strip Redrying Stage

Wang

Jiang

et al. 2022

Applied Sciences

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“…(Bongarala, Hu, Weibel & Garimella, 2021) methods of chemical analysis are based on the phenomenon of capillarity, many industrial and household equipment uses capillary tubes or materials. Also, the use of materials with capillary properties allows to create simple technologies for the treatment of water and various solutions without the consumption of electricity and additional chemical reagents (Alberghini, Boriskina, Asinari & Fasano, 2022).…”

Section: Introductionmentioning

confidence: 99%

Collective monograph «Sustainable Development: Environmental Protection. Energy Saving. Sustainable Environmental Management»

2022

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Міністерство освіти і науки України Львівська обласна державна адміністрація Національний університет «Львівська політехніка» Інститут сталого розвитку ім. В. Чорновола Західний науковий центр НАН України і МОН України Львівська обласна організація Всеукраїнської Екологічної Ліги Рекомендовано Науковою радою Державної екологічної академії післядипломної освіти та управління (протокол № 5-22 від 24.11.2022 року) Відповідальний за випуск: Вронська Н. Ю. кандидат технічних наук, доцент кафедри екології та збалансованого природокористування Національного університету «Львівська політехніка». Рецензенти: Пляцук Л. Д. доктор технічних наук, професор, завідувач кафедри екології та природозахисних технологій Сумського державного університету. Шмандій В. М. доктор технічних наук, професор кафедри екології та біотехнології Кременчуцького Національного університету імені Михайла Остроградського. Адаменко Я. О. доктор технічних наук, професор, завідувач кафедри екології Івано-Франківський національний технічний університет нафти і газу. Масікевич Ю. Г. Масікевич Ю. Г. доктор біологічних наук, професор кафедри гігієни та екології Вищого державного начального закладу України «Буковинський державний медичний університет».

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Manipulating wicking for achieving water-heat-vapor-salt balance in a two-dimensional solar evaporator

Lan,

Hong,

Chang

et al. 2024

Applied Thermal Engineering

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Characterisation and modelling of water wicking and evaporation in capillary porous media for passive and energy-efficient applications

Cited by 16 publications

References 48 publications

Analysis of Rewetting Characteristics and Process Parameters in Tobacco Strip Redrying Stage

Analysis of Rewetting Characteristics and Process Parameters in Tobacco Strip Redrying Stage

Collective monograph «Sustainable Development: Environmental Protection. Energy Saving. Sustainable Environmental Management»

Manipulating wicking for achieving water-heat-vapor-salt balance in a two-dimensional solar evaporator

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