| Titre : |
The solubility of water in cryogenic liquids and the related effects |
| Type de document : |
texte imprimé |
| Auteurs : |
Rachid Rebiai, Auteur ; R. G. Scurlock, Directeur de thèse |
| Editeur : |
Southampton : University of Southampton |
| Année de publication : |
1985 |
| Importance : |
Mult. |
| Présentation : |
ill. |
| Format : |
27 cm. |
| Note générale : |
Thèse de Doctorat : Philosophy : Royaume-Uni, University of Southampton : 1985
Bibliogr. [9] f. - Annexe [40] f |
| Langues : |
Anglais (eng) |
| Mots-clés : |
Water solubility
Cryogenic solvents
Gas chromatography
Schlieren photography
Fourier transform
Infra-red spectroscopy
Micro-thermometry |
| Index. décimale : |
D005385 |
| Résumé : |
The solubility of water and the related temperature profiles across the liquid/vapour interface, ware measured in LIN, LOX, LAr, LCH4, and LNG at the boiling point of the liquid and one atmospheric pressure.
The designs of an infra-red solution cell for low temperature use and a fast response micro-thermocouple (25µm diameter) with a sensitive junction of approximately 15µm length, are provided.
The data presented, were obtained from a series of measurements in cryogenic liquids mentioned above and were based on the following analytical techniques: infra-red spectroscopy, gas chromatography, micro-thermometry and Schlieren photography.
The findings from our experiments and the methods used are discussed in relation to the prevention of evaporation instability.
The systems that have been studied include pure and contaminated LIN, contaminated LOX, condensed high purity argon and methane gases and condensed technical grade natural gas, at the normal boiling point.
Using high resolution Fourier transform infra-red spectrometer and gas chromatograph, we have discovered that water dissolves in all cryogenic solutions mentioned above.
The measured solubility is much larger (10⁻⁵ mole fraction) than predicted by normal theories of solutions which is 10⁻²⁰ mole fraction.
A fast response micro-thermocouple has been used to measure the temperature profile across the liquide/vapour interface as a function of the heat flux and an experimental correlation for five different cryogenic liquids was obtained between the modified mass flux m* and the superheat ΔT for ΔT up to 7K.
Finally, schlieren photography technique has been used which reveals the complex cellular convective flow in the liquid surface region during the normal evaporation of cryogenic liquids. |
The solubility of water in cryogenic liquids and the related effects [texte imprimé] / Rachid Rebiai, Auteur ; R. G. Scurlock, Directeur de thèse . - Southampton : University of Southampton, 1985 . - Mult. : ill. ; 27 cm. Thèse de Doctorat : Philosophy : Royaume-Uni, University of Southampton : 1985
Bibliogr. [9] f. - Annexe [40] f Langues : Anglais ( eng)
| Mots-clés : |
Water solubility
Cryogenic solvents
Gas chromatography
Schlieren photography
Fourier transform
Infra-red spectroscopy
Micro-thermometry |
| Index. décimale : |
D005385 |
| Résumé : |
The solubility of water and the related temperature profiles across the liquid/vapour interface, ware measured in LIN, LOX, LAr, LCH4, and LNG at the boiling point of the liquid and one atmospheric pressure.
The designs of an infra-red solution cell for low temperature use and a fast response micro-thermocouple (25µm diameter) with a sensitive junction of approximately 15µm length, are provided.
The data presented, were obtained from a series of measurements in cryogenic liquids mentioned above and were based on the following analytical techniques: infra-red spectroscopy, gas chromatography, micro-thermometry and Schlieren photography.
The findings from our experiments and the methods used are discussed in relation to the prevention of evaporation instability.
The systems that have been studied include pure and contaminated LIN, contaminated LOX, condensed high purity argon and methane gases and condensed technical grade natural gas, at the normal boiling point.
Using high resolution Fourier transform infra-red spectrometer and gas chromatograph, we have discovered that water dissolves in all cryogenic solutions mentioned above.
The measured solubility is much larger (10⁻⁵ mole fraction) than predicted by normal theories of solutions which is 10⁻²⁰ mole fraction.
A fast response micro-thermocouple has been used to measure the temperature profile across the liquide/vapour interface as a function of the heat flux and an experimental correlation for five different cryogenic liquids was obtained between the modified mass flux m* and the superheat ΔT for ΔT up to 7K.
Finally, schlieren photography technique has been used which reveals the complex cellular convective flow in the liquid surface region during the normal evaporation of cryogenic liquids. |
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