Sherwood correlation for finger-test experiments

Finger-test experiments are frequently conducted in continuous-wear investigations of ceramic materials. However, mass transfer equations accurately representing these scenarios are not yet available, which can lead to erroneous estimation of dissolution-related parameters due to poor approximations...

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Main Authors: Jerónimo Guarco, Burhanuddin, Sandra Vollmann, Harald Harmuth
Format: Article
Language:English
Published: Elsevier 2022-09-01
Series:Results in Engineering
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2590123022002808
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author Jerónimo Guarco
Burhanuddin
Sandra Vollmann
Harald Harmuth
author_facet Jerónimo Guarco
Burhanuddin
Sandra Vollmann
Harald Harmuth
author_sort Jerónimo Guarco
collection DOAJ
description Finger-test experiments are frequently conducted in continuous-wear investigations of ceramic materials. However, mass transfer equations accurately representing these scenarios are not yet available, which can lead to erroneous estimation of dissolution-related parameters due to poor approximations. In this study, a Sherwood correlation for finger-test experiments was developed. The equation applies to rods or nearly cylindrical specimens that are rotated in a liquid contained in a cylindrical receptacle. The equation is derived from numerical results simulating the dissolution of ceramic materials in liquid slags, where the dissolution is dominated by mass transfer in the liquid. For these simulations, surface profiles from the experimental results were employed. Based on the derived equation, a methodology for the calculation of mass transfer coefficients for dissolution processes was designed that enables diffusivity determination. This equation is also suitable for heat transfer calculations. The equation is in agreement with the results obtained by simulation and other documented heat and mass transfer equation, for the latter the fit is poorer due to differences in the experiment configuration.
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spelling doaj.art-e1502e2cbbdb433182365d42d98ec8dd2022-12-22T01:51:01ZengElsevierResults in Engineering2590-12302022-09-0115100610Sherwood correlation for finger-test experimentsJerónimo Guarco0 Burhanuddin1Sandra Vollmann2Harald Harmuth3Corresponding author.; Chair of Ceramics, Montanuniversität Leoben, Peter-Tunner Straße 5, 8700, Leoben, AustriaChair of Ceramics, Montanuniversität Leoben, Peter-Tunner Straße 5, 8700, Leoben, AustriaChair of Ceramics, Montanuniversität Leoben, Peter-Tunner Straße 5, 8700, Leoben, AustriaChair of Ceramics, Montanuniversität Leoben, Peter-Tunner Straße 5, 8700, Leoben, AustriaFinger-test experiments are frequently conducted in continuous-wear investigations of ceramic materials. However, mass transfer equations accurately representing these scenarios are not yet available, which can lead to erroneous estimation of dissolution-related parameters due to poor approximations. In this study, a Sherwood correlation for finger-test experiments was developed. The equation applies to rods or nearly cylindrical specimens that are rotated in a liquid contained in a cylindrical receptacle. The equation is derived from numerical results simulating the dissolution of ceramic materials in liquid slags, where the dissolution is dominated by mass transfer in the liquid. For these simulations, surface profiles from the experimental results were employed. Based on the derived equation, a methodology for the calculation of mass transfer coefficients for dissolution processes was designed that enables diffusivity determination. This equation is also suitable for heat transfer calculations. The equation is in agreement with the results obtained by simulation and other documented heat and mass transfer equation, for the latter the fit is poorer due to differences in the experiment configuration.http://www.sciencedirect.com/science/article/pii/S2590123022002808Mass transferFinger testSherwood equationDissolutionRotating cylinder
spellingShingle Jerónimo Guarco
Burhanuddin
Sandra Vollmann
Harald Harmuth
Sherwood correlation for finger-test experiments
Results in Engineering
Mass transfer
Finger test
Sherwood equation
Dissolution
Rotating cylinder
title Sherwood correlation for finger-test experiments
title_full Sherwood correlation for finger-test experiments
title_fullStr Sherwood correlation for finger-test experiments
title_full_unstemmed Sherwood correlation for finger-test experiments
title_short Sherwood correlation for finger-test experiments
title_sort sherwood correlation for finger test experiments
topic Mass transfer
Finger test
Sherwood equation
Dissolution
Rotating cylinder
url http://www.sciencedirect.com/science/article/pii/S2590123022002808
work_keys_str_mv AT jeronimoguarco sherwoodcorrelationforfingertestexperiments
AT burhanuddin sherwoodcorrelationforfingertestexperiments
AT sandravollmann sherwoodcorrelationforfingertestexperiments
AT haraldharmuth sherwoodcorrelationforfingertestexperiments