New drop weight analysis for surface tension determination of liquids

Boon Beng Lee; Pogaku Ravindra; Eng Seng Chan

doi:10.1016/j.colsurfa.2008.09.003

New drop weight analysis for surface tension determination of liquids

Boon Beng Lee, Pogaku Ravindra, Eng Seng Chan

Research output: Contribution to journal › Article › Research › peer-review

77 Citations (Scopus)

Abstract

The validity of the existing drop weight analyses for determining surface tension could be influenced by the liquid properties. This study aimed to verify the validity of the Harkins-Brown correction factors and the Bond number correlation, as well as to develop a new drop weight analysis that is insensitive to liquid properties. The liquid samples of known surface tension and viscosity were chosen and classified into six different groups. Validation was done by comparing the data compiled in this study with the existing correlations as well as by dimensionless analysis. Results show that the existing drop weight analyses are valid for most liquid groups provided that the surface tension number (N_γ) exceeds 10^-1 or the Ohnersorge number (Oh) is below 10². This, however, confirms the influence of liquid properties on the validity of the analyses. The LCP coefficient method was developed to eliminate this problem by using the drop weight results generated from multiple tips of different sizes. The surface tension could then be calculated by using a semi-empirical linear correlation. Error analysis shows that the LCP coefficient method gives the best reliability and accuracy among various drop weight analyses.

Original language	English
Pages (from-to)	112-120
Number of pages	9
Journal	Colloids and Surfaces A: Physicochemical and Engineering Aspects
Volume	332
Issue number	2-3
DOIs	https://doi.org/10.1016/j.colsurfa.2008.09.003
Publication status	Published - 15 Jan 2009
Externally published	Yes

Keywords

Bond number correlation
Correction factors
Drop weight method
LCP coefficient method
Surface tension
Viscosity

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10.1016/j.colsurfa.2008.09.003

Cite this

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title = "New drop weight analysis for surface tension determination of liquids",

abstract = "The validity of the existing drop weight analyses for determining surface tension could be influenced by the liquid properties. This study aimed to verify the validity of the Harkins-Brown correction factors and the Bond number correlation, as well as to develop a new drop weight analysis that is insensitive to liquid properties. The liquid samples of known surface tension and viscosity were chosen and classified into six different groups. Validation was done by comparing the data compiled in this study with the existing correlations as well as by dimensionless analysis. Results show that the existing drop weight analyses are valid for most liquid groups provided that the surface tension number (Nγ) exceeds 10-1 or the Ohnersorge number (Oh) is below 102. This, however, confirms the influence of liquid properties on the validity of the analyses. The LCP coefficient method was developed to eliminate this problem by using the drop weight results generated from multiple tips of different sizes. The surface tension could then be calculated by using a semi-empirical linear correlation. Error analysis shows that the LCP coefficient method gives the best reliability and accuracy among various drop weight analyses.",

keywords = "Bond number correlation, Correction factors, Drop weight method, LCP coefficient method, Surface tension, Viscosity",

author = "Lee, {Boon Beng} and Pogaku Ravindra and Chan, {Eng Seng}",

note = "Funding Information: The financial support from the Ministry of Higher Education, Malaysia (Fundamental Research Grant, Scheme no. 0075-TK-1/2006) is gratefully acknowledged. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.",

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doi = "10.1016/j.colsurfa.2008.09.003",

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AU - Ravindra, Pogaku

AU - Chan, Eng Seng

N1 - Funding Information: The financial support from the Ministry of Higher Education, Malaysia (Fundamental Research Grant, Scheme no. 0075-TK-1/2006) is gratefully acknowledged. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.

PY - 2009/1/15

Y1 - 2009/1/15

N2 - The validity of the existing drop weight analyses for determining surface tension could be influenced by the liquid properties. This study aimed to verify the validity of the Harkins-Brown correction factors and the Bond number correlation, as well as to develop a new drop weight analysis that is insensitive to liquid properties. The liquid samples of known surface tension and viscosity were chosen and classified into six different groups. Validation was done by comparing the data compiled in this study with the existing correlations as well as by dimensionless analysis. Results show that the existing drop weight analyses are valid for most liquid groups provided that the surface tension number (Nγ) exceeds 10-1 or the Ohnersorge number (Oh) is below 102. This, however, confirms the influence of liquid properties on the validity of the analyses. The LCP coefficient method was developed to eliminate this problem by using the drop weight results generated from multiple tips of different sizes. The surface tension could then be calculated by using a semi-empirical linear correlation. Error analysis shows that the LCP coefficient method gives the best reliability and accuracy among various drop weight analyses.

AB - The validity of the existing drop weight analyses for determining surface tension could be influenced by the liquid properties. This study aimed to verify the validity of the Harkins-Brown correction factors and the Bond number correlation, as well as to develop a new drop weight analysis that is insensitive to liquid properties. The liquid samples of known surface tension and viscosity were chosen and classified into six different groups. Validation was done by comparing the data compiled in this study with the existing correlations as well as by dimensionless analysis. Results show that the existing drop weight analyses are valid for most liquid groups provided that the surface tension number (Nγ) exceeds 10-1 or the Ohnersorge number (Oh) is below 102. This, however, confirms the influence of liquid properties on the validity of the analyses. The LCP coefficient method was developed to eliminate this problem by using the drop weight results generated from multiple tips of different sizes. The surface tension could then be calculated by using a semi-empirical linear correlation. Error analysis shows that the LCP coefficient method gives the best reliability and accuracy among various drop weight analyses.

KW - Bond number correlation

KW - Correction factors

KW - Drop weight method

KW - LCP coefficient method

KW - Surface tension

KW - Viscosity

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New drop weight analysis for surface tension determination of liquids

Abstract

Keywords

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