An experimental investigation of the surface tension of seawater
Name
897206012-MIT.pdf
Description
Full printable version
Size
9.89 MB
Format
Adobe PDF
Checksum (MD5)
96b9b0444994c46e6d48aca738bcc09c
Author(s)
Nayar, Kishor Govind
Advisor(s)
John H. Lienhard, V.
Date Issued
2014
Publisher
Massachusetts Institute of Technology
Abstract
Surface tension of seawater was measured for absolute salinities S = (20.01, 35.18, 40.49, 79.39, 121.54) g/kg across a temperature range of T = (0 - 90)°C at atmospheric pressure using the Wilhelmy plate method. The uncertainty within measurements varied between 0.04 - 0.33 mN/m with the average uncertainty being 0.12 mN/m. The experimental procedures were validated with tests conducted on ACS reagent grade water and aqueous sodium chloride solutions. A best fit correlation was developed expressing surface tension of seawater as a function of temperature and salinity. The average absolute deviation between measurements and the correlation was 0.19% while the maximum deviation was 0.60%. The surface tension of seawater was found to be comparable to within 1.37% of the surface tension of aqueous sodium chloride. The surface tension of 0.2 [mu]m microfiltered and ultraviolet radiation treated natural seawater was found to be similar to that of laboratory prepared seawater.
Description
Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2014.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 89-93).
Subjects
Mechanical Engineering.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Terms of Use
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