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

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

doi:10.1016/j.ces.2021.117060

Cited by 12 publications

(2 citation statements)

References 36 publications

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“…Using this approach, the efficiency of tank cleaning procedures can be further improved by computer-aided pathway planning. Improvements are expected in particular through the combination of pathway planning and modeling approaches for cleaning soil layers (e.g., width of cleaned region) by impinging water jets (Bhagat et al, 2017;Fernandes et al, 2022;Johanes et al, 2019;Köhler et al, 2015Köhler et al, , 2022. Cleaning efficiency could be further improved if the AJC would be combined with an optical soil sensor to adapt itself automatically to the actual soiling state.…”

Section: Relevance For Other Industrial Tank Cleaning Applicationsmentioning

confidence: 99%

Minimizing the environmental footprint in food production: A case study on the improvement of an industrial tank cleaning process through adaptive cleaning devices

Mauermann,

Beckmann,

Murcek

et al. 2024

J Food Process Engineering

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The potential of adaptive tank cleaning devices to reduce resource consumption of cleaning processes is quantified on the example of a dairy tank under production conditions. As methodological approach, a cleaning validation process was applied to obtain information on the resource consumption of the existing cleaning procedure as reference. An improved cleaning procedure with increased mechanical cleaning action was designed. It exploits the capabilities of motor‐driven jet cleaners to perform helical, zigzag, spiral and meander‐shaped nozzle movements. The nozzle movements were applied according to the location of cleaning‐critical area and the fouling deposit distribution. The configuration was supported by cleaning simulations. Both cleaning procedure were quantitatively compared. The adapted cleaning process reduced the cleaning time by 32 per cent without compromising the cleanling success. The volumetric flow rate was 55 l/min instead of 130 l/min and the energy requirement for cleaning was lowered by approx. 227,260 kJ per cleaning cycle.Practical applicationsReducing cleaning times, water consumption, and strengthening food safety are essential challenges for food production. The methodical approach for conducting a cleaning validation provides necessary information to systematically address priorities of optimization: (1) reduction of cleaning time, (2) reduction of water consumption, (3) reduction of energy consumption. The optical detection of cleaning‐critical area, fouling deposit distribution and the temporal cleaning process opens the possibility of monitoring the hygiene status and strengthening food safety.The use of adaptive, motor‐driven tank cleaning devices enables the targeted adjustment of cleaning intensity. This enables the targeted cleaning of hard‐to‐clean and easy‐to‐clean tank areas and may reduce resource consumption and cleaning time.

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Section: Relevance For Other Industrial Tank Cleaning Applicationsmentioning

confidence: 99%

Minimizing the environmental footprint in food production: A case study on the improvement of an industrial tank cleaning process through adaptive cleaning devices

Mauermann,

Beckmann,

Murcek

et al. 2024

J Food Process Engineering

View full text Add to dashboard Cite

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“…They have seamlessly integrated CFD simulations to optimize components pivotal for cleaning. On another front, research by Fernandes et al (2019) and Fernandes et al (2022) zeroed in on predicting the cleaning patterns of viscoplastic soils when impinged upon by water jets, basing their models on a radial momentum balance.…”

Section: Applications Of Cfd Models In the Cleaning Of Food‐contact S...mentioning

confidence: 99%

Computational fluid dynamics (CFD) modeling and application for cleaning of food‐contact surfaces: A review

Chai,

Su,

et al. 2024

J Food Process Engineering

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In the food industry, ensuring clean production equipment is essential for maintaining product quality and safeguarding consumer health. For optimal geometric cleaning, it is crucial to consider the specific interactions between flow, dirt, and cleaning fluids. Computational fluid dynamics (CFD) is a powerful tool for simulating fluid flow behavior, especially in terms of momentum, mass, and energy transfer. It has been widely used to model elimination processes in food sanitation. The construction of CFD model and the cleaning of food contact surface were explored. Additionally, an overview of existing CFD studies on fouling and cleaning mechanisms was provided in this manuscript. The goal of this review is to discuss the present state of CFD modeling in cleaning soil from surfaces and to offer a valuable reference for food cleaning process.

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Numerical modeling of a cohesively separating soil layer in consideration of locally varying soil distribution

et al. 2023

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Predicting the cleaning time required to remove a thin layer of soil is a challenging task and subject of current research. One approach to tackle this problem is the decomposition into physical sub-problems which are modelled separately and the subsequent synthesis of these models. In this paper, an existing model for adhesive detachment is extended for the prediction of the cleaning time of cohesively separating soil layers. The extension is based on measurements of the pull-off forces and their correlation to the local water mass fraction. The resulting new model is validated using cleaning experiments with starch in a fully developed channel flow. Furthermore, an inhomogeneous soil distribution and its effect on cleaning results like cleaning time and removal rate is investigated. It is shown that accounting for the local soil distribution in the model leads to a significant improvement of the prediction of the cleaning behaviour.

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

Cited by 12 publications

References 36 publications

Minimizing the environmental footprint in food production: A case study on the improvement of an industrial tank cleaning process through adaptive cleaning devices

Minimizing the environmental footprint in food production: A case study on the improvement of an industrial tank cleaning process through adaptive cleaning devices

Computational fluid dynamics (CFD) modeling and application for cleaning of food‐contact surfaces: A review

Numerical modeling of a cohesively separating soil layer in consideration of locally varying soil distribution

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