Investigation of the thermodynamic properties of nitrogen at pressures up to 8 kbar and temperatures up to 1800�K

Antanovich, A. A.; Plotnikov, Michael

doi:10.1007/bf00860882

Cited by 2 publications

(5 citation statements)

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“…Although most data of Malbrunot and Vodar have obvious deviations, their deviations from the SLJ model are less than 0.80% at P > 0.4 GPa, with average of less than 0.24%. Similarly, the data of Antanovich and Plotnikov also have obvious deviations from the SLJ model. Their ADV and MDV of the data at 1100 K are 1.52 and 1.95%, respectively, and those at 1700 K are 1.97 and 2.22%, respectively.…”

Section: Simulations Of Supercritical Fluid N2mentioning

confidence: 75%

“…The volume deviations of Kimura et al are all negative and show linear negative correlation with pressure. The deviations of Antanovich and Plotnikov increase with increasing temperature below 1100 K, but level off above 1100 K. The deviations of Tsiklis and Polyakov and Malbrunot and Vodar show notable positive correlations with temperature, and the larger deviations of Malbrunot and Vodar are all at medium pressures.…”

Section: Overview Of Pvt Data Of Fluid N2mentioning

confidence: 86%

“…In fact, some data published before 1998 − were not mentioned by Span et al, where the data of Radousky and Ross and Nellis et al for shock-compressed N 2 are far beyond the P–T range of previous experiments. The data of Malbrunot and Vodar have higher pressures than those of Malbrunot and Vodar, so they are also shown in Figure a.…”

Section: Overview Of Pvt Data Of Fluid N2mentioning

confidence: 87%

“…Some experimental PVT data ,,,,,− at high pressures and temperatures are compared with the SLJ model (Figure ). The average and maximum deviations of molar volumes (ADV, MDV) are summarized in Table .…”

Section: Overview Of Pvt Data Of Fluid N2mentioning

confidence: 99%

“…Three groups of representative PVT experimental data at high temperatures or pressures ,, were used for comparison with our simulation results (Figure and Table S2 in the Supporting Information).…”

Section: Simulations Of Supercritical Fluid N2mentioning

confidence: 99%

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Molecular Dynamics Simulations and a Quintic Equation of State for Nitrogen in a Wide P–T Range, with Validation of a Reference Model up to Ultrahigh P–T Conditions

Guo

Jiang

et al. 2022

J. Chem. Eng. Data

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Pressure−density−temperature data of nitrogen (N 2 ) at 589 state points are obtained by molecular dynamics simulations at 1573.15−3273.15 K and 500−3500 MPa (using NPT ensemble) or 0.2−0.5 g•cm −3 (using NVT ensemble). The results agree well with those of experiments at high temperatures and pressures, and the Helmholtz free energy model of Span et al. [J. Phys. Chem. Ref. Data 2000, 29, 1361−1433. The model of Span et al. is confirmed to be valid to at least 6000 K and 30000 MPa (or 2.0 g•cm −3 ) using the new and previous data, as well as thermodynamic analysis. Using this model as a reference, a quintic equation of state (EOS) is developed for supercritical N 2 . Compared to the reference model, the volume deviations of the EOS are within 0.21% at 273−4273 K, 0−4300 MPa, and 0−1.035 g•cm −3 . The EOS compares well with the new simulation results and previous experimental and simulated data at high pressures and temperatures. It is capable of accurate prediction of fugacity coefficient, residual enthalpy and entropy, and other properties. It can also be extrapolated to lower temperatures or higher temperatures and densities, but with lowering of accuracy.

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Section: Simulations Of Supercritical Fluid N2mentioning

confidence: 75%