Measurements and modelling of the ‘millimanipulation’ device to study the removal of soft solid layers from solid substrates

Tsai, Jheng-Han; Fernandes, Rubens Rosario; Wilson, D.I.

doi:10.1016/j.jfoodeng.2020.110086

Cited by 7 publications

(5 citation statements)

References 39 publications

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“…Figure 2 shows the parts of the experimental rig, and the top and side views of the scraping blade are given in sections a and b, respectively. The sketch of the scraping process was adapted from Tsai et al 29 The soiled surfaces are placed on a holder, as seen in parts c and d. The whole design of the texture analyzer can be seen in Figure 3 . The setup uses the “extended craft knife” probe of the texture analyzer, and the mechanical removal is carried out using the TA HD Plus texture analyzer.…”

Section: Resultsmentioning

confidence: 99%

Improving Cleaning Efficiency through the Measurement of Food Fouling Adhesive Strength

Sözeri Atik,

Palabiyik,

Tirpanci Sivri

et al. 2024

ACS Omega

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This study aims to investigate the impacts of factors, including textural properties, surface roughness, and contact angle, on the cleaning performance of food soils and develop a preliminary mathematical model to predict the cleaning score, depending on the soil-surface properties. The force required to remove soil from the surface was determined by a texture analyzer equipped with a newly designed probe. Potato puree and egg yolk soils showed high adhesive forces compared to other deposits. Margarine required the lowest force to detach from the surfaces. A soil-surface characteristic number (SSCN) was constructed from the results of contact angle, roughness, and textural analysis to predict the cleaning score depending on the soil-surface properties. The experimental work presented indicates that a higher SSCN was associated with lower cleaning scores for soil-surface combinations. Furthermore, a predictive model was developed to define the relationship between cleaning scores and SSCN. The applicability of the model was validated by measuring the cleaning performance of caramel and pudding soils on glass, porcelain, and stainless-steel household surfaces by using an automatic method. Therefore, it can be concluded that the SSCN approach can be improved in further studies to predict cleaning scores of soil-surface combinations in the experimental rig or automatic dishwasher.

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Section: Resultsmentioning

confidence: 99%

Improving Cleaning Efficiency through the Measurement of Food Fouling Adhesive Strength

Sözeri Atik,

Palabiyik,

Tirpanci Sivri

et al. 2024

ACS Omega

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“…A 3-dimensional, isothermal, transient impinging jet model was constructed with three fluids, namely (i) stagnant air at ambient temperature and pressure; (ii) the water jet; and (iii) the soil layer. All fluids were considered incompressible: (i) and (ii) were Newtonian while the soil behaviour was modelled using the regularised Bingham-Papanastasiou model which has been shown to give a reasonable description of its shear rheology (Tsai et al, 2020). The fluid properties are summarised in Table 1.…”

Section: Coupled-flow Simulationsmentioning

confidence: 99%

“…Table 1 -Fluid properties at 20 °C (Tsai et al, 2020) Fluid The experimental case considered for comparison featured a jet radius, 𝑟 o , of 1 mm, a temperature of 20 °C and water flow rate of 2 L min -1 , giving 𝑅𝑒 j ~ 19,000. Under these conditions 𝑟 t was 15.5 mm and the observed limit of soil removal was around 26 mm.…”

Section: Coupled-flow Simulationsmentioning

confidence: 99%

“…The mesh is refined and rearranged during calculation, based on the location of the interface between the water and other species to increase the resolution at the interface. The minimum mesh size was set at 64 m, and the convergence criteria were those reported by Tsai et al (2020). Calculations were performed on a cluster consisting of 20 Supermicro ® servers with each server including twin 8-core Intel ® Xeon processors clocked at 2.7 GHz.…”

Section: Governing Equationsmentioning

confidence: 99%

“…The third approach is a coupled computational dynamic volume of fluid (VOF) simulation of the liquid film and soil layer phases, implemented in OpenFOAM. The numerical formulation is based on that employed by Tsai et al (2020) film by an impinging liquid jet (Rej = 100). They reported that the growth of the cleaning front followed the relationship 𝑎 ∝ (𝑡 − 𝑡 o ) 0.3 for film viscosities of 10 3 , 10 4 and 10 5 times that of the jetting liquid, where 𝑡 o is the time for the crater to penetrate the soil layer.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of models for predicting cleaning of viscoplastic soil layers by impinging coherent turbulent water jets

Fernandes

Tsai

Wilson

2022

Chemical Engineering Science

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Influence of rheological properties and pull-off forces of native and modified starches on cleaning in plane channel flow

et al. 2023

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Consumer safety and product quality are of high priority in the food industry. Strongly adhering deposits are formed in processing equipment such as plate heat exchangers, which demand large quantities of water, chemicals, energy and time for cleaning. This study presents an approach to characterize soil properties and to link them to the cleaning behavior to generate a basis for soil-specific cleaning. Six starch soils were rheologically analyzed during swelling, pull-off forces were measured with a micromanipulation device, and swelling progression was determined with a camera. Cleaning experiments were conducted in a plane channel setup. A reptation time without cleaning and a subsequent constant cleaning rate defined the cleaning behavior. The observed cleaning mechanisms were considered as well. Multivariate statistics revealed significant interrelationships between soil properties and cleaning behavior. The complex reasons for the overall cleaning behavior remain unknown, but certain aspects could be explained by the measured soil properties.

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Measurements and modelling of the ‘millimanipulation’ device to study the removal of soft solid layers from solid substrates

Cited by 7 publications

References 39 publications

Improving Cleaning Efficiency through the Measurement of Food Fouling Adhesive Strength

Improving Cleaning Efficiency through the Measurement of Food Fouling Adhesive Strength

Comparison of models for predicting cleaning of viscoplastic soil layers by impinging coherent turbulent water jets

Influence of rheological properties and pull-off forces of native and modified starches on cleaning in plane channel flow

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