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Comparison of Viscosity Measurement of a Liquid Carbon Dioxide Used for a High-Pressure Coal Gasifier
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 Title & Authors
Comparison of Viscosity Measurement of a Liquid Carbon Dioxide Used for a High-Pressure Coal Gasifier
KIM, KANGWOOK; KIM, CHANGYEON; KIM, HAKDUCK; SONG, JUHUN;
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 Abstract
In this study, the viscosity of a liquid carbon dioxide () that can potentially be used in a wet feed coal gasifier was evaluated. A pressurized capillary viscometer was employed to obtain the viscosity data of using two different methods. During the first method, the measurements were conducted under quasi-steady and high pressure flow conditions where two-phase flow was greatly minimized. The viscosity of was determined using turbulent friction relationship. At the second flow condition where unsteady flow is induced, the viscosity of was measured using the half-time pressure decay data and was further compared with values calculated by the first method.
 Keywords
Coal gasifier;Liquid carbon dioxide (LCO2);Viscosity;Capillary viscometer;Half-time pressure decay;Turbulent friction relationship;
 Language
Korean
 Cited by
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