Feasibility of simultaneous viscosity and density measurements of a fluid from the motion of an oscillating disk

Krall, A. H.; Nieuwoudt, J. C.; Sengers, J. V.; Kestin, J.

doi:10.1016/0378-3812(87)85024-0

Cited by 21 publications

(8 citation statements)

References 8 publications

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“…The density of the fluid plays a part in the hydrodynamic effects too, and a knowledge of this property is necessary before the working equations can be solved with respect to the viscosity. Using this fact, a simultaneous determination of both properties has been attempted with a vibrating-disk viscometer (Krall et al, 1987), but the uncertainties in the density were of the same order as those in the viscosity, (0.5%.…”

Section: Methodsmentioning

confidence: 99%

Density and Viscosity Measurements of 2,2,4-Trimethylpentane (Isooctane) from 198 K to 348 K and up to 100 MPa

Pádua¹,

Fareleira²,

Calado³

et al. 1996

J. Chem. Eng. Data

111

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New density and viscosity results for 2,2,4-trimethylpentane at temperatures from 198 K to 348 K and pressures up to 100 MPa are reported. The measurements of both properties were performed simultaneously using a vibrating-wire instrument operated in the forced mode of oscillation. The present set of measurements extends those found in the literature to the high-pressure and low-temperature region. Correlations for both the density and the viscosity are presented, and comparisons are established with various sets of results from the literature. The estimated uncertainties of the results are ±0.05% for the density and ±2.5% for the viscosity.

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Section: Methodsmentioning

confidence: 99%

Density and Viscosity Measurements of 2,2,4-Trimethylpentane (Isooctane) from 198 K to 348 K and up to 100 MPa

Pádua¹,

Fareleira²,

Calado³

et al. 1996

J. Chem. Eng. Data

111

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show abstract

“…The viscosity was measured with an oscillating-disk viscometer developed by Kestin and co-workers at Brown University (13,14) and subsequently transferred to the University of Maryland (15). The viscometer is shown in Figure 1.…”

Section: Experimental Methodsmentioning

confidence: 99%

Viscosity of liquid toluene at temperatures from 25 to 150.degree.C and at pressures up to 30 MPa

Krall¹,

Sengers²,

Kestin³

1992

J. Chem. Eng. Data

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Naw maasursmants ara prasantad for tha viscosity of liquid toluana at tamparaturas from 25 to 150 °C and at pressures up to 30 MPa. Tha measurements wars obtained with an oscHlatIng-dtsk vlacometer and hava an estimated accuracy of ±0.5%. A comparison with data reported by other researchers Is Included, and an equation for the viscosity of liquid toluene as a function of temperature and density Is given. Toluene was chosen because of Its usefulness as a primary reference standard substance for thermal conductivity of liquids and Its potential use as a similar standard for viscosity.

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“…To date, no density data have been reported with a vibrating-body instrument at temperatures above 200°C, since the elastic properties of the wire begin to vary greatly at extreme temperatures during the measurement. This argument is also strengthened by the fact of an increase in the uncertainty in toluene densities at temperatures above 125°C observed by Krall et al [28] and an increase in the percent deviation between the experimental density data and the literature data for n-octane at temperatures above 50°C observed by Caudwell et al [14]. Another disadvantage is that the fluid of interest in the high-pressure vessel cannot be observed from outside.…”

Section: Vibrating-body Instrumentmentioning

confidence: 92%

“…Krall et al [28] used an oscillating-disk viscometer, one kind of vibrating-body instrument, in which a body is set into an oscillatory motion and then allowed to decay freely, to simultaneously measure the density and viscosity of toluene at temperatures to 150°C and the pressures to 30 MPa. An uncertainty of 0.3% was obtained for both density and viscosity at the temperatures below 125°C.…”

Section: Vibrating-body Instrumentmentioning

confidence: 99%

Pressure-Volume-Temperature Property Determination for Fluids at Extreme Pressures

Journal

Xu³

et al. 2013

PDJ

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Pressure-volume-temperature (PVT) properties, more commonly known as density data play an important role in various chemical processes and provide a fundamental database for the development and examination of thermodynamic models. For example, ultradeep oil exploration process requires density data at extreme pressure conditions, which are crucial for the design and optimization of drilling and production equipment. This review discusses the current techniques for high-pressure determination. Three most common techniques, vibrating-body, bellows, and floating-piston, are described in detail with presentation of some typical results and advantages and drawbacks are discussed for each method. Other techniques are also briefly introduced at the end of this review.

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Feasibility of simultaneous viscosity and density measurements of a fluid from the motion of an oscillating disk

Cited by 21 publications

References 8 publications

Density and Viscosity Measurements of 2,2,4-Trimethylpentane (Isooctane) from 198 K to 348 K and up to 100 MPa

Density and Viscosity Measurements of 2,2,4-Trimethylpentane (Isooctane) from 198 K to 348 K and up to 100 MPa

Viscosity of liquid toluene at temperatures from 25 to 150.degree.C and at pressures up to 30 MPa

Pressure-Volume-Temperature Property Determination for Fluids at Extreme Pressures

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