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|Title:||An Absolute Viscometer for Low Temperatures and Medium High Pressures: Viscosity of Nitrogen Gas Down to Very Low Temperatures|
|Keywords:||viscometer, temperatures, pressures, high, low, nitrogen|
|Abstract:||<p> A new two-capillary absolute viscometer for the measurements of the viscosity of gases down to cryogenic temperatures and for moderate pressures up to 200 atm has been developed and described in this thesis.</p> <p> An experimental determination of the absolute viscosity of nitrogen at atmospheric pressure and in the temperature range 97.41-297.88°K is also reported. The maximum error of the smoothed data is believed to range from ±1% at highest temperatures to ±1.6% at the least favourable lowest temperatures.</p> <p> Data obtained in this work and those of previous workers have been correlated using integral equations postulated by Chapman-Enskog collision theory of dilute gases.</p> <p> Furthermore, viscosity measurements have been carried out for nitrogen at 42 and 84 atm and are presented in the thesis to confirm the applicability of the viscometer for high pressure work.</p>|
|Appears in Collections:||Open Access Dissertations and Theses|
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