The thermal conductivities of the saturated hydrocarbons in the gaseous state

Mann, William B.; Dickins, B. G.

doi:10.1098/rspa.1931.0183

Cited by 33 publications

(7 citation statements)

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“…The maximum deviation of the literature data is about 15% at temperatures from 340 K and 380 K. The deviations of the present measurements and the literature data from eq 5 are presented in Figure 4. Good agreement is found between the present steady-state measurements and the steady-state measurements of Nieuwoudt et al, 2 Mann and Dickins, 15 Lambert et al, 16 and Kazaryan and Ryabtsev. 18 The dilute-vapor data of Parkinson and Gray 17 and Heinemann et al 19 exhibit strong deviations at increasing temperatures.…”

Section: Correlation Developmentsupporting

confidence: 83%

Measurement and Correlation of the Thermal Conductivity of Isobutane from 114 K to 600 K at Pressures to 70 MPa

Perkins

2002

J. Chem. Eng. Data

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New experimental data for the thermal conductivity of isobutane are reported that allow improved correlations to be developed. Previous correlations have been limited by a lack of thermal conductivity data for the vapor and compressed liquid at temperatures below 300 K and near the critical point. In addition, significant discrepancies were noted in the available high-temperature data for thermal conductivity. These new experimental data, covering the temperature range from the triple point at 113.55 K to 600 K and the pressure range 0.1 MPa to 70 MPa, are used together with the previously available data to develop improved correlations for the thermal conductivity of isobutane. The data reported here are estimated to have an uncertainty of (1% for measurements removed from the critical point and at pressures above 1 MPa, which increases to (3% in the critical region and (4% at low pressures (<1 MPa) at a 95% confidence level. The quality of the new data is such that the thermal-conductivity correlation for isobutane is estimated to have an uncertainty of about 3% at a 95% confidence level, with the exception of state points near the critical point and the dilute gas, where the uncertainty of the correlation increases to 5%.

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Section: Correlation Developmentsupporting

confidence: 83%

Measurement and Correlation of the Thermal Conductivity of Isobutane from 114 K to 600 K at Pressures to 70 MPa

Perkins

2002

J. Chem. Eng. Data

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“…In Figure , the calculated thermal conductivity values are compared with most of the available experimental data, − the correlations of Hendl et al and Friend et al, and the values for the unadjusted PES. It can be seen that many of the data sets are not mutually consistent within their claimed uncertainties (if uncertainties are provided at all), making it difficult to assess the quality of the calculated values.…”

Section: Resultsmentioning

confidence: 99%

Reference Values for the Second Virial Coefficient and Three Dilute Gas Transport Properties of Ethane from a State-of-the-Art Intermolecular Potential Energy Surface

Hellmann

2018

J. Chem. Eng. Data

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The second virial coefficient and the dilute gas shear viscosity, thermal conductivity, and self-diffusion coefficient of ethane (C2H6, R-170) were determined with high accuracy at temperatures from (90 to 1200) K using advanced computational approaches. The second virial coefficient was calculated semiclassically by means of the Mayer-sampling Monte Carlo technique, while the transport properties were obtained using the classical kinetic theory of polyatomic gases. The required intermolecular potential energy surface was developed as part of this work. It is based on high-level quantum-chemical ab initio calculations and was fine-tuned to reliable experimental data for the second virial coefficient. The computed thermophysical property values are in excellent agreement with the best available experimental data and are recommended as reference values. Correlations based entirely on the calculated values are proposed for practical applications in the low-density gas phase.

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“…6, the thermal conductivity values obtained using the adjusted potential function, λ adj , are compared with those obtained using the unadjusted one, λ unadj , with a large number of experimental data sets, [63][64][65][66][67][68][69][70][71][72][73][74][75] with the zero-density part of the correlation of Marsh et al, 74 and with the recommended reference values of Younglove and Ely. 76 We extrapolated the data of Zheng et al 72 at 323.75 K and the steady-state hot-wire data of Marsh et al 74 to zero pressure.…”

Section: B Resultsmentioning

confidence: 99%

Intermolecular potential energy surface and thermophysical properties of propane

Hellmann

2017

The Journal of Chemical Physics

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A six-dimensional potential energy surface (PES) for the interaction of two rigid propane molecules was determined from supermolecular ab initio calculations up to the coupled cluster with single, double, and perturbative triple excitations level of theory for 9452 configurations. An analytical site-site potential function with 14 sites per molecule was fitted to the calculated interaction energies. To validate the analytical PES, the second virial coefficient and the dilute gas shear viscosity and thermal conductivity of propane were computed. The dispersion part of the potential function was slightly adjusted such that quantitative agreement with the most accurate experimental data for the second virial coefficient at room temperature was achieved. The adjusted PES yields values for the three properties that are in very good agreement with the best experimental data at all temperatures.

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The thermal conductivities of the saturated hydrocarbons in the gaseous state

Abstract: Downloaded from iodides used in the preparation of the hydrocarbons were carefully purified by repeated fractionation, and the following are the boiling points of the specimens used.Methyl

Cited by 33 publications

References 0 publications

Measurement and Correlation of the Thermal Conductivity of Isobutane from 114 K to 600 K at Pressures to 70 MPa

Measurement and Correlation of the Thermal Conductivity of Isobutane from 114 K to 600 K at Pressures to 70 MPa

Reference Values for the Second Virial Coefficient and Three Dilute Gas Transport Properties of Ethane from a State-of-the-Art Intermolecular Potential Energy Surface

Intermolecular potential energy surface and thermophysical properties of propane

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