scholarly journals The ISM equation of state for nano-fluids: the quantum effects analysis and volumetric properties assessment of the systems

2020 ◽  
Vol 49 (3) ◽  
pp. 261-278
Author(s):  
MASOUMEH KIANI
Keyword(s):  
Equation Of State ◽  
Potential Function ◽  
Base Fluid ◽  
Virial Coefficient ◽  
Quantum Correction ◽  
Second Virial Coefficient ◽  
Volumetric Properties ◽  
Quantum Properties ◽  
Two Parameters ◽  
Nano Fluids

In this study, the density of nanoparticles, nanofluids containing a base fluid and nanofluids containing a mixture of two base fluids in the compressive range of 0.1-45 MPa and a temperature range of 273-363 K were calculated and predicted. The equation of state used in this work is the Ihm-Sang-Mason equation of state. According to the quantum properties of nanoparticles, a part of quantum correction was used to calculate the second virial coefficient. The potential function of Morse three-parameters was used which is more flexible than the usual potential functions of two-parameters such as Lenard Jones 12-6.

Parameters of the Bender Equation of State for Chloro Derivatives of Methane and Chlorobenzene

2001 ◽  
Vol 66 (6) ◽  
pp. 833-854 ◽  
Author(s):  
Ivan Cibulka ◽  
Lubomír Hnědkovský ◽  
Květoslav Růžička
Keyword(s):  
Experimental Data ◽  
Equation Of State ◽  
Virial Coefficient ◽  
Second Virial Coefficient ◽  
Virial Coefficients ◽  
Liquid Equilibrium ◽  
Second Virial Coefficients ◽  
Equilibrium Data ◽  
State Behaviour ◽  
Derivatives Of

Values of adjustable parameters of the Bender equation of state evaluated for chloromethane, dichloromethane, trichloromethane, tetrachloromethane, and chlorobenzene from published experimental data are presented. Experimental data employed in the evaluation included the data on state behaviour (p-ρ-T) of fluid phases, vapour-liquid equilibrium data (saturated vapour pressures and orthobaric densities), second virial coefficients, and the coordinates of the gas-liquid critical point. The description of second virial coefficient by the equation of state is examined.

A POTENTIAL FUNCTION FOR LIQUID HELIUM AT 0°K.

1954 ◽  
Vol 32 (12) ◽  
pp. 759-763 ◽  
Author(s):  
C. F. A. Beaumont
Keyword(s):  
Liquid Helium ◽  
Potential Function ◽  
High Temperatures ◽  
Radial Distribution ◽  
Isothermal Compressibility ◽  
Virial Coefficient ◽  
Distribution Curve ◽  
Second Virial Coefficient ◽  
Fair Agreement ◽  
Radial Distribution Curve

A new potential function for liquid helium is obtained by modifying the Margenau potential function and summing over a suggested structure for the liquid. The new potential function leads to fair agreement with the first peak of the radial distribution curve for liquid helium, with the isothermal compressibility, and with second virial coefficient data at high temperatures.

scholarly journals Determination of Second Virial Coefficient of Gold by a Modified Berthelot Equation of State

2020 ◽  
Vol 1 (4) ◽  
pp. 175-180
Author(s):  
M. Sivakumar ◽  
R. Balasubramanian
Keyword(s):  
Equation Of State ◽  
Critical Point ◽  
Virial Coefficient ◽  
Second Virial Coefficient ◽  
Similarity Parameter ◽  
Thermodynamic Similarity ◽  
Van Der Waals Equation ◽  
Wide Range ◽  
Law Of Corresponding States

The present study aims to determine the second virial coefficient of gold over a wide range of temperatures from the boiling point to the critical point. A three - parameter modified Berthelot equation of state has been employed to determine the second virial coefficient of gold. The parameters of the equation of state are determined through the critical - point parameters of gold. The temperature -dependence of the second virial coefficient of gold has been investigated. The obtained results are compared with that of the van der Waals equation of state, Berthelot equation of state, Tsonopoulus correlation, and McGlashan correlation. The results of this work agree well with that of other correlations in the vicinity of the critical point. It is also established that gold obeys the single - parameter law of corresponding states. And, the new parameter introduced in the attractive term of the equation of state is found to be a thermodynamic similarity parameter. Doi: 10.28991/HEF-2020-01-04-02 Full Text: PDF

scholarly journals Application of perturbed hard-sphere equation of state to the study of volumetric properties of nano-fluids

2016 ◽  
Vol 423 ◽  
pp. 181-189 ◽  
Author(s):  
Sayed Mostafa Hosseini ◽  
Mohammad Mehdi Alavianmehr ◽  
Jalil Moghadasi
Keyword(s):  
Equation Of State ◽  
Hard Sphere ◽  
Volumetric Properties ◽  
Nano Fluids ◽  
Sphere Equation

Nucleation Studies in Flowing High-Pressure Steam

1975 ◽  
Vol 189 (1) ◽  
pp. 427-436 ◽  
Author(s):  
F. Bakhtar ◽  
D. J. Ryley ◽  
K. A. Tubman ◽  
J. B. Young
Keyword(s):  
High Pressure ◽  
Equation Of State ◽  
Pressure Range ◽  
Virial Coefficient ◽  
Second Virial Coefficient ◽  
Expansion Rate ◽  
Theoretical Treatment ◽  
High Pressure Steam ◽  
Pressure Steam

A description is given of a theoretical treatment of nucleation in flowing steam employing an equation of state based on the second virial coefficient. Comparison is made with experimental observations of reversion in the pressure range 2–35 bars of steam in a convergent-divergent nozzle of expansion rate P = 104 s-1. The agreement obtained is moderate.

Pairwise additive third virial coefficients for multipolar molecules : Application to water vapour

1971 ◽  
Vol 24 (8) ◽  
pp. 1567 ◽  
Author(s):  
CHJ Johnson ◽  
TH Spurling
Keyword(s):  
Water Vapour ◽  
Potential Function ◽  
Virial Coefficient ◽  
Second Virial Coefficient ◽  
Virial Coefficients ◽  
Axially Symmetric ◽  
Multidimensional Integration ◽  
Third Virial Coefficient ◽  
Qualitative Effect ◽  
Experimental Values

Pairwise additive third virial coefficients for axially symmetric multipolar molecules have been calculated using a non-product multidimensional integration formula. Results for the Stockmayer potential agree with the corrected results of Rowlinson. It is found that the inclusion of the dipole-quadrupole and quadrupole-quadrupole terms in the potential function has a marked qualitative effect on the shape of the C-T curve. Values of the third virial coefficient for water vapour calculated using a potential function derived from gaseous viscosity and second virial coefficient data are in good agreement with the experimental values.

scholarly journals Modified Lennard-Jones Potentials with a Reduced Temperature-Correction Parameter for Calculating Thermodynamic and Transport Properties: Noble Gases and Their Mixtures (He, Ne, Ar, Kr, and Xe)

2013 ◽  
Vol 2013 ◽  
pp. 1-29 ◽  
Author(s):  
Seung-Kyo Oh
Keyword(s):  
Transport Properties ◽  
Potential Function ◽  
Virial Coefficient ◽  
Noble Gases ◽  
Second Virial Coefficient ◽  
Temperature Correction ◽  
Viscosity Data ◽  
Lennard Jones ◽  
Thermodynamic And Transport Properties ◽  
Reduced Temperature

The three-parameter Lennard-Jones (12-6) potential function is proposed to calculate thermodynamic property (second virial coefficient) and transport properties (viscosity, thermal conductivity, and diffusion coefficient) of noble gases (He, Ne, Ar, Kr, and Xe) and their mixtures at low density. Empirical modification is made by introducing a reduced temperature-correction parameter τ to the Lennard-Jones potential function for this purpose. Potential parameters (σ, ε, and τ) are determined individually for each species when the second virial coefficient and viscosity data are fitted together within the experimental uncertainties. Calculated thermodynamic and transport properties are compared with experimental data by using a single set of parameters. The present study yields parameter sets that have more physical significance than those of second virial coefficient methods and is more discriminative than the existing transport property methods in most cases of pure gases and of gas mixtures. In particular, the proposed model is proved with better results than those of the two-parameter Lennard-Jones (12-6) potential, Kihara Potential with group contribution concepts, and other existing methods.

Sign in / Sign up

Export Citation Format

Share Document