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Characterisation of the mechanical properties of heat-induced protein deposits in immersed cleaning systems

Record Type:	Electronic resources : Monograph/item
Title/Author:	Characterisation of the mechanical properties of heat-induced protein deposits in immersed cleaning systems/ by Jintian Liu.
Author:	Liu, Jintian.
Published:	Cham :Springer International Publishing : : 2023.,
Description:	xx, 88 p. :ill. (some col.), digital ;24 cm.
[NT 15003449]:	1. Introduction -- 1.1. Motivation -- 1.2. Aim of the present work -- 1.3. Outline -- 2. Background of cleaning in place -- 2.1. Heat treatment in the dairy production -- 2.2. Fouling and cleaning in the dairy production -- 2.2.1. Heat-induced formation of fouling deposits -- 2.2.2. The use of whey protein for experimental studies -- 2.2.3. Cleaning process for the fouled heating surface -- 2.3. The influence factors of cleaning in place -- 2.4. Cleaning mechanisms on the mechanical properties of protein deposits -- 3. Mechanical behaviour of heat-induced deposits -- 3.1. Mechanical behaviour of fouling deposits -- 3.1.1. Fouling experiments with raw milk and whey protein solution -- 3.1.2. Realisation of quasi-static and dynamic indentation experiments -- 3.1.3. Comparison of mechanical responses between milk and whey protein deposits -- 3.1.4. Influences of heat treatment on the mechanical behaviour of fouling deposits -- 3.2. Mechanical behaviour of whey protein gel -- 3.2.1. Gelation of whey protein solution with different heating conditions -- 3.2.2. Characterisation of fracture behaviour of WPG -- 3.2.3. Degradation of the WPG samples with NaOH solution -- 3.2.4. Characterisation of failure behaviour of WPG -- 4. Constitutive modelling and numerical simulation 69 -- 4.1. Kinematics and balance equations -- 4.1.1. Kinematics of deformation -- 4.1.2. Stress tensors -- 4.1.3. Balance equation -- 4.2 Constitutive equations for protein deposits -- 4.2.1. One-dimensional generalised Maxwell model -- 4.2.2. Three-dimensional visco-hyperelastic model -- 4.2.3. Parameter identification through inverse finite element method -- 4.2.4. Application of modelling approaches -- 5. Conclusion and Outlook.
Contained By:	Springer Nature eBook
Subject:	Dairying - Equipment and supplies -
Online resource:	https://doi.org/10.1007/978-3-031-21849-1
ISBN:	9783031218491

Characterisation of the mechanical properties of heat-induced protein deposits in immersed cleaning systems
Liu, Jintian.

Characterisation of the mechanical properties of heat-induced protein deposits in immersed cleaning systems[electronic resource] /by Jintian Liu. - Cham :Springer International Publishing :2023. - xx, 88 p. :ill. (some col.), digital ;24 cm. - Mechanics and adaptronics,2731-622X. - Mechanics and adaptronics..

1. Introduction -- 1.1. Motivation -- 1.2. Aim of the present work -- 1.3. Outline -- 2. Background of cleaning in place -- 2.1. Heat treatment in the dairy production -- 2.2. Fouling and cleaning in the dairy production -- 2.2.1. Heat-induced formation of fouling deposits -- 2.2.2. The use of whey protein for experimental studies -- 2.2.3. Cleaning process for the fouled heating surface -- 2.3. The influence factors of cleaning in place -- 2.4. Cleaning mechanisms on the mechanical properties of protein deposits -- 3. Mechanical behaviour of heat-induced deposits -- 3.1. Mechanical behaviour of fouling deposits -- 3.1.1. Fouling experiments with raw milk and whey protein solution -- 3.1.2. Realisation of quasi-static and dynamic indentation experiments -- 3.1.3. Comparison of mechanical responses between milk and whey protein deposits -- 3.1.4. Influences of heat treatment on the mechanical behaviour of fouling deposits -- 3.2. Mechanical behaviour of whey protein gel -- 3.2.1. Gelation of whey protein solution with different heating conditions -- 3.2.2. Characterisation of fracture behaviour of WPG -- 3.2.3. Degradation of the WPG samples with NaOH solution -- 3.2.4. Characterisation of failure behaviour of WPG -- 4. Constitutive modelling and numerical simulation 69 -- 4.1. Kinematics and balance equations -- 4.1.1. Kinematics of deformation -- 4.1.2. Stress tensors -- 4.1.3. Balance equation -- 4.2 Constitutive equations for protein deposits -- 4.2.1. One-dimensional generalised Maxwell model -- 4.2.2. Three-dimensional visco-hyperelastic model -- 4.2.3. Parameter identification through inverse finite element method -- 4.2.4. Application of modelling approaches -- 5. Conclusion and Outlook.

During heat treatment in dairy production, the rapid formation of heat-induced fouling deposits on the plant surface leads to reduced efficiency of heat transfer. Therefore, a regular cleaning process is required to soften the heat-induced protein deposits and then remove them from the plant surface. The mechanical property of the deposits is one of the key issues of the cleaning mechanisms since the non-fractured behaviour dominates the deformation of the fouling layer and the failure behaviour has a great impact on the cohesive removal of fouling deposits. Considering the complicated geometry of fouling deposits and their irregular distribution, indentation experiments were carried out on various kinds of protein deposits. The experimental results reveal the significant influence of the thickness of fouling deposits on their mechanical behaviour and the time-dependent nonlinear behaviour of the deposits. Furthermore, heat-induced whey protein gel was used as the model material for fouling deposits and the non-fractured and fracture behaviour was characterized using compression and wire cutting experiments, respectively. The material parameters identified using the inverse finite element method allow the prediction of fracture behaviour under localized external loads and provide a deeper insight into cohesive removal. To investigate the softening effect during caustic washing, tensile experiments were conducted on chemically treated and untreated whey protein gels. Adequate chemical degradation leads to a softer mechanical response and increased stress relaxation, making whey protein gels more flowable and more resistant to tensile deformation. The experimental results provide useful data on the failure behaviour of chemically treated whey protein gels.

ISBN: 9783031218491

Standard No.: 10.1007/978-3-031-21849-1doiSubjects--Topical Terms:

3626503
Dairying
--Equipment and supplies

LC Class. No.: SF247 / .L58 2023

Dewey Class. No.: 637

Characterisation of the mechanical properties of heat-induced protein deposits in immersed cleaning systems
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505 0 $a 1. Introduction -- 1.1. Motivation -- 1.2. Aim of the present work -- 1.3. Outline -- 2. Background of cleaning in place -- 2.1. Heat treatment in the dairy production -- 2.2. Fouling and cleaning in the dairy production -- 2.2.1. Heat-induced formation of fouling deposits -- 2.2.2. The use of whey protein for experimental studies -- 2.2.3. Cleaning process for the fouled heating surface -- 2.3. The influence factors of cleaning in place -- 2.4. Cleaning mechanisms on the mechanical properties of protein deposits -- 3. Mechanical behaviour of heat-induced deposits -- 3.1. Mechanical behaviour of fouling deposits -- 3.1.1. Fouling experiments with raw milk and whey protein solution -- 3.1.2. Realisation of quasi-static and dynamic indentation experiments -- 3.1.3. Comparison of mechanical responses between milk and whey protein deposits -- 3.1.4. Influences of heat treatment on the mechanical behaviour of fouling deposits -- 3.2. Mechanical behaviour of whey protein gel -- 3.2.1. Gelation of whey protein solution with different heating conditions -- 3.2.2. Characterisation of fracture behaviour of WPG -- 3.2.3. Degradation of the WPG samples with NaOH solution -- 3.2.4. Characterisation of failure behaviour of WPG -- 4. Constitutive modelling and numerical simulation 69 -- 4.1. Kinematics and balance equations -- 4.1.1. Kinematics of deformation -- 4.1.2. Stress tensors -- 4.1.3. Balance equation -- 4.2 Constitutive equations for protein deposits -- 4.2.1. One-dimensional generalised Maxwell model -- 4.2.2. Three-dimensional visco-hyperelastic model -- 4.2.3. Parameter identification through inverse finite element method -- 4.2.4. Application of modelling approaches -- 5. Conclusion and Outlook.
520 $a During heat treatment in dairy production, the rapid formation of heat-induced fouling deposits on the plant surface leads to reduced efficiency of heat transfer. Therefore, a regular cleaning process is required to soften the heat-induced protein deposits and then remove them from the plant surface. The mechanical property of the deposits is one of the key issues of the cleaning mechanisms since the non-fractured behaviour dominates the deformation of the fouling layer and the failure behaviour has a great impact on the cohesive removal of fouling deposits. Considering the complicated geometry of fouling deposits and their irregular distribution, indentation experiments were carried out on various kinds of protein deposits. The experimental results reveal the significant influence of the thickness of fouling deposits on their mechanical behaviour and the time-dependent nonlinear behaviour of the deposits. Furthermore, heat-induced whey protein gel was used as the model material for fouling deposits and the non-fractured and fracture behaviour was characterized using compression and wire cutting experiments, respectively. The material parameters identified using the inverse finite element method allow the prediction of fracture behaviour under localized external loads and provide a deeper insight into cohesive removal. To investigate the softening effect during caustic washing, tensile experiments were conducted on chemically treated and untreated whey protein gels. Adequate chemical degradation leads to a softer mechanical response and increased stress relaxation, making whey protein gels more flowable and more resistant to tensile deformation. The experimental results provide useful data on the failure behaviour of chemically treated whey protein gels.
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