Impact of morphological alterations on thermal aging of proteinaceous deposits

Due to external thermal and mechanical stress on proteinaceous fouling layer, a progressive material change, the so-called aging, occurs, which influences both the thermal and mechanical properties. This paper presents a systematic classification of morphological, thermal, and mechanical aging pheno...

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Bibliographic Details
Published in:Experimental heat transfer 2022-07, Vol.35 (5), p.637-652
Main Authors: Schnöing, L., Shahnazari, R. N., Augustin, W., Scholl, S.
Format: Article
Language:English
Subjects:
Aging
Aging (materials)
aging classification
Fouling
heat transfer
Laminar flow
Mechanical properties
proteinaceous deposit
Temperature dependence
thermal aging
Thermodynamic properties
Whey
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Summary:Due to external thermal and mechanical stress on proteinaceous fouling layer, a progressive material change, the so-called aging, occurs, which influences both the thermal and mechanical properties. This paper presents a systematic classification of morphological, thermal, and mechanical aging phenomena. The thermal aging of proteinaceous deposits is discussed based on the thermal characterization of fouling experiments. Therefore, differently aged food-based fouling layers from whey protein concentrate solutions are generated in a heated, laminar-operating flow channel. Both, a time dependency and a temperature dependency of the aging process become apparent. The impact of morphological aging and possible temperature-dependent reactions is discussed.
ISSN:0891-6152
1521-0480
DOI:10.1080/08916152.2021.1933650