Thermo-solutal-diffusion in high pressure liquid mixtures in the presence of micro-vibrations

Srinivasan, Seshasai; Dejmek, Marcus; Saghir, M. Ziad

doi:10.1016/j.ijthermalsci.2010.04.018

Cited by 28 publications

(17 citation statements)

References 26 publications

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“…Another issue that is being actively investigated is the vibrations that the experimental apparatus experiences in a space flight and the consequent impact on the thermodiffusion process [106,158,159]. For instance, studies by Merkin [160] and Davidson [161] on the instability of the liquid due to the microgravity environment has shown that there is a significant increase in the heat transport due to the g-jitters when compared to the results from a purely diffusive behavior.…”

Section: Advantages and Disadvantages In Performing Microgravity Expementioning

confidence: 99%

Experimental approaches to study thermodiffusion – A review

Srinivasan

Saghir

2011

International Journal of Thermal Sciences

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Section: Advantages and Disadvantages In Performing Microgravity Expementioning

confidence: 99%

Experimental approaches to study thermodiffusion – A review

Srinivasan

Saghir

2011

International Journal of Thermal Sciences

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“…Microgravity environment on platforms such as the International Space Station and the free flying satellites such as Foton-M3 provide a reliable environment to investigate purely diffusive processes [1][2][3]. With this in mind, in the framework of the European Space Agency's Physical Sciences project "Diffusion and Soret Coefficient (DSC) Measurement for Improved Oil Recovery", several investigations, theoretical [4,5], ground based [6][7][8], as well as microgravity experiments [2,3], are being conducted by a number of researchers.…”

Section: Introductionmentioning

confidence: 99%

Thermodiffusion in ternary hydrocarbon mixtures. Part 1: n-dodecane/isobutylbenzene/tetralin

Srinivasan

Saghir

2011

Journal of Non-Equilibrium Thermodynamics

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Experiments are to be performed on board the ISS to understand the thermodiffusion behavior in ternary hydrocarbon mixtures of n-dodecane/ isobutylbenzene/tetralin. This will be followed by additional experiments with these components as well as mixtures of n-hexane/n-heptane/ n-dodecane and n-decane/isobutylbenzene/tetralin. For these additional experiments, the temperature of the mixture is yet to be determined. In a three part series, by applying the theory in the literature, thermodiffusion coefficients of all these mixtures have been determined. The predictions have been made using the thermodiffusion model of Firoozabadi as well as two correlations from the literature. In this first part, thermodiffusion coefficients of twelve mixtures of n-dodecane/isobutylbenzene/tetralin have been estimated. From the results it is proposed that the future experiments be performed at 318 K and 1 atm. Certain mixtures have also been identified as important experiments due to conflicting predictions by the theoretical methods.

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“…This has prompted theoretical [9][10][11][12][13][14][15][16] as well as experimental investigations [17][18][19][20] on thermodiffusion in hydrocarbon mixtures. While a theoretical formulation exists for multi-component mixtures [21], due to the complexity of the problem, experiments are often undertaken on binary [18,22,23] and ternary [24][25][26] hydrocarbon mixtures.…”

Section: Introductionmentioning

confidence: 99%

Thermodiffusion and molecular diffusion in binaryn-alkane mixtures: experiments and numerical analysis

Srinivasan

Mezquıa

Bou-Ali

et al. 2011

Philosophical Magazine

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New experimental data on the thermodiffusion and molecular diffusion coefficients of nine non-equimolar binary mixtures of nC 6 À nC i (i ¼ 10, . . . , 18) at 298 K and 1 atm have been reported. The data have been obtained using a combination of the thermogravitational column and the sliding symmetric tubes technique, respectively. It was found that with an increase in the disparity between the two components, the Soret effect becomes more dominant. Further, the stronger Soret effect weakens the molecular diffusion process. These trends are observed in the form of an increase in magnitude of the thermodiffusion coefficient and a decrease in the magnitude of the molecular diffusion coefficient. Numerical analysis was also performed using the principles of non-equilibrium thermodynamics. The model was able to predict the experimental data as well as the trends fairly accurately.

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Thermo-solutal-diffusion in high pressure liquid mixtures in the presence of micro-vibrations

Cited by 28 publications

References 26 publications

Experimental approaches to study thermodiffusion – A review

Experimental approaches to study thermodiffusion – A review

Thermodiffusion in ternary hydrocarbon mixtures. Part 1: n-dodecane/isobutylbenzene/tetralin

Thermodiffusion and molecular diffusion in binaryn-alkane mixtures: experiments and numerical analysis

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