The Corresponding States Principle—a Review of Current Theory and Practice

Leland, Thomas W.; Chappelear, Patsy S.

doi:10.1021/ie50703a005

Cited by 201 publications

(81 citation statements)

References 58 publications

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“…There are no tuned constants employed anywhere in the closure. The property evaluation scheme is derived using the extended corresponding states model [70,71] and designed to handle multicomponent systems. The scheme has been optimized to account for thermodynamic nonidealities and transport anomalies over a wide range of pressures and temperatures.…”

Section: Large Eddy Simulationsmentioning

confidence: 99%

Understanding and predicting soot generation in turbulent non-premixed jet flames.

Wang

Kook²,

Doom³

et al. 2010

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This report documents the results of a project funded by DoD's Strategic Environmental Research and Development Program (SERDP) on the science behind development of predictive models for soot emission from gas turbine engines. Measurements of soot formation were performed in laminar flat premixed flames and turbulent non-premixed jet flames at 1 atm pressure and in turbulent liquid spray flames under representative conditions for takeoff in a gas turbine engine. The laminar flames and open jet flames used both ethylene and a prevaporized JP-8 surrogate fuel composed of n-dodecane and m-xylene. The pressurized turbulent jet flame measurements used the JP-8 surrogate fuel and compared its combustion and sooting characteristics to a world-average JP-8 fuel sample. The pressurized jet flame measurements demonstrated that the surrogate was representative of JP-8, with a somewhat higher tendency to soot formation. The premixed flame measurements revealed that flame temperature has a strong impact on the rate of soot nucleation and particle coagulation, but little sensitivity in the overall trends was found with different fuels. An extensive array of non-intrusive optical and laser-based measurements was performed in turbulent non-premixed jet flames established on specially designed piloted burners. Soot concentration data was collected throughout the flames, together with instantaneous images showing the relationship between soot and the OH radical and soot and PAH. A detailed chemical kinetic mechanism for ethylene combustion, including fuel-rich chemistry and benzene formation steps, was compiled, validated, and reduced. The reduced ethylene mechanism was incorporated into a high-fidelity LES code, together with a momentbased soot model and models for thermal radiation, to evaluate the ability of the chemistry and soot models to predict soot formation in the jet diffusion flame. The LES results highlight the importance of including an optically-thick radiation model to accurately predict gas temperatures and thus soot formation rates. When including such a radiation model, the LES model predicts mean soot concentrations within 30% in the ethylene jet flame. 3This page left intentionally blank.

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Section: Large Eddy Simulationsmentioning

confidence: 99%

Understanding and predicting soot generation in turbulent non-premixed jet flames.

Wang

Kook²,

Doom³

et al. 2010

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“…[7] The enthalpy of the reference cavity, calculated using eqs. [8] and [9] can be compared with the values obtained by our previously proposed method (7) which was based on where fe is vaporization enthalpy at working temperature (25°C) and AC, the difference, at the same temperature, between the specific heat at constant volume of gas and that of liquid. Table 3 shows a comparison between the Hco values calculated from eqs.…”

Section: Figmentioning

confidence: 99%

“…[lo] is thus inconsistent and we think that the method of calculating Hco from eqs. [8] and [9] has a deeper physical foundation and a clearer physical meaning when compared with that based on eq.…”

Section: Figmentioning

confidence: 99%

“…The vaporization of a liquid in the absence of order Let us first consider simple liquids (monoatomic or apolar and spherical molecular liquids) that comply with the two-parameter Corresponding States Principle (CSP) (9). For these liquids the reduced saturated pressure varies with the reduced temperature in a way that is approximately described by Rowlinson equation:…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The enthalpy and entropy of cavity formation in liquids and Corresponding States Principle

Dionı́sio¹,

Ramos²,

Gonçalves³

1990

Can. J. Chem.

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MADALENA S. DION~SIO, JOAQUIM J. MOURA RAMOS, and RAQUEL M. GONGALVES. Can. J. Chem. 68, 1937 (1990. A new method to calculate the enthalpy and entropy of cavity formation in liquids is proposed. The reference cavity formation process is identified with the vaporization of liquid in the absence of order and Corresponding States Principle is used to eliminate the order contribution to vaporization enthalpy. The proposed method agrees very well with Claverie's modification of the Pierotti's method but strongly disagrees with the Sinanoglu's method, particularly in the context of entropy of cavity formation.The new method is checked by applying it to the description of solution process in alkane binary mixtures at infinite dilution and is used to study the solvent effect on the solvolysis of t-butyl chloride and bromide.

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“…Its success is grounded on the accuracy obtained in broad temperature and pressure conditions and its strong theoretical basis [18][19][20][21][22][23], while mathematically simple and using a minimum amount of experimental information. One of its advantages is that the same formalism can be used for different properties, whereas the only changes are the definition of the reduced property, the equations used for the reference systems, and the reference system itself.…”

Section: Corresponding-states Principlementioning

confidence: 99%

Corresponding-States Modeling of the Speed of Sound of Long-Chain Hydrocarbons

Queimada

Coutinho²,

Marrucho³

et al. 2006

Int J Thermophys

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Models based on the corresponding-states principle have been extensively used for several equilibrium and transport properties of different pure and mixed fluids. Some limitations, however, have been encountered with regard to its application to long chain or polar molecules. Following previous studies, where it was shown that the corresponding-states principle could be used to predict thermophysical properties such as vapor-liquid interfacial tension, vapor pressure, liquid density, viscosity, and thermal conductivity of longchain alkanes, the application of the corresponding-states principle to the estimation of speeds of sound, with a special emphasis on the less studied heavier n-alkane members, is presented. Results are compared with more than four thousand experimental data points as a function of temperature and pressure for n-alkanes ranging from ethane up to n-hexatriacontane. Average deviations are less than 2%, demonstrating the reliability of the proposed model for the estimation of speeds of sound.

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The Corresponding States Principle—a Review of Current Theory and Practice

Cited by 201 publications

References 58 publications

Understanding and predicting soot generation in turbulent non-premixed jet flames.

Understanding and predicting soot generation in turbulent non-premixed jet flames.

The enthalpy and entropy of cavity formation in liquids and Corresponding States Principle

Corresponding-States Modeling of the Speed of Sound of Long-Chain Hydrocarbons

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