Breakdown of Evaporating Falling Films as a Function of Surface Tension Gradient

Budiman, Ali G.; Florijanto, C.; Palen, J. W.

doi:10.1080/01457639608939885

Cited by 7 publications

(2 citation statements)

References 3 publications

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“…This is typically the case when using copper or brass materials and LiBr solutions, as will be explained below. The operating conditions such as the temperature difference between the film and the surface also impact the wetting rate through Marangoni effects (Zang et al [34], Budiman et al [35]). The oxidation of the brass surface by the solution is in agreement with the estimations of the film thickness mentioned previously and was confirmed after the test by visual observation of the exchanger surface.…”

Section: Discussionmentioning

confidence: 99%

Numerical and experimental analysis of falling-film exchangers used in a LiBr–H₂O interseasonal heat storage system

Huaylla

Stutz

Pierrès

2018

Heat Transfer Engineering

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This paper investigates heat and mass transfer occurring in an interseasonal absorption heat storage system using LiBr/H2O as the sorption couple. It focuses on the poor performances of the falling film exchangers with vertical tubes, which are characterized by low flow rate compared to conventional absorption machines. A numerical model was developed for the study and validated with specific experimental results. Comparison of the numerical model to experimental results from the heat storage prototype shows the presence of abnormally high thermal resistance between the falling films and the exchanger surfaces. The deterioration in performance appears to originate in the low wetting rate of the surfaces. A new design of the exchangers is proposed to solve this problem and thus attain the desired performance.

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Section: Discussionmentioning

confidence: 99%

Numerical and experimental analysis of falling-film exchangers used in a LiBr–H₂O interseasonal heat storage system

Huaylla

Stutz

Pierrès

2018

Heat Transfer Engineering

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“…Further, a longer evaporation time maximized the effect of the Marangoni flow. The Marangoni flow occurs in the film of a liquid mixture because of non-uniform solvent evaporation, causing the deposition of AgNWs on the substrate [35]. Therefore, numerous AgNWs were already deposited and anchored on the substrate during the dewetting of the liquid film.…”

Section: Effect Of the Deposition Conditionsmentioning

confidence: 99%

Highly Transparent Conducting Electrodes Based on a Grid Structure of Silver Nanowires

et al. 2020

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Transparent conducting electrodes (TCEs) formed with silver nanowires (AgNWs) have attracted attention as substitutes for indium tin oxide (ITO). However, the randomly deposited AgNW film performs poorly in terms of the transmittance and sheet resistance to serve as a substitute of ITO. To improve the performance of the AgNW film, we fabricated a grid-patterned AgNW by modifying the surface energy of the substrate. The hydrophobized surface was selectively etched by UV light through a quartz chrome mask, and a suspension of AgNWs in isopropyl alcohol/ethylene glycol mixture was coated on the substrate by a meniscus dragging deposition process. The grid-patterned AgNW film has a lower percolation threshold and a 13% higher figure-of-merit value compared to the randomly deposited AgNW film. The transparent thin films with a grid structure of AgNWs exhibit the high electrical conductivity with a sheet resistance of 33 Ohm/sq at a transmittance of 92.7% (λ = 550 nm).

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A new correlation for the prediction of critical quality in tubes

Sun

Shi

et al. 2021

Annals of Nuclear Energy

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Breakdown of Evaporating Falling Films as a Function of Surface Tension Gradient

Cited by 7 publications

References 3 publications

Numerical and experimental analysis of falling-film exchangers used in a LiBr–H₂O interseasonal heat storage system

Numerical and experimental analysis of falling-film exchangers used in a LiBr–H₂O interseasonal heat storage system

Highly Transparent Conducting Electrodes Based on a Grid Structure of Silver Nanowires

A new correlation for the prediction of critical quality in tubes

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Breakdown of Evaporating Falling Films as a Function of Surface Tension Gradient

Cited by 7 publications

References 3 publications

Numerical and experimental analysis of falling-film exchangers used in a LiBr–H2O interseasonal heat storage system

Numerical and experimental analysis of falling-film exchangers used in a LiBr–H2O interseasonal heat storage system

Highly Transparent Conducting Electrodes Based on a Grid Structure of Silver Nanowires

A new correlation for the prediction of critical quality in tubes

Contact Info

Product

Resources

About

Numerical and experimental analysis of falling-film exchangers used in a LiBr–H₂O interseasonal heat storage system

Numerical and experimental analysis of falling-film exchangers used in a LiBr–H₂O interseasonal heat storage system