Characterisation of ice and THF hydrate slurry crystal size distribution by microscopic observation method

The objective of the present work is to characterise, using an experimental microscopic observation device, the crystal size distribution (CSD) of ice and tetrahydrofuran (THF) hydrate slurries, which can be used as two-phase refrigerant fluids for cold transportation and storage in the field of sec...

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Bibliographic Details
Published inInternational journal of refrigeration Vol. 33; no. 8; pp. 1639 - 1647
Main Authors Delahaye, Anthony, Fournaison, Laurence, Guilpart, Jacques
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.12.2010
Elsevier
Subjects
Coulis de glace
Cristal
Crystal
Distribution
Environmental Sciences
Hydrate
Ice slurry
Particle
Particule
Tetrahydrofuran
Tétrahydrofurane
Particle
Cristal
Hydrate
Particule
Coulis de glace
Distribution
Tétrahydrofurane
Tetrahydrofuran
Ice slurry
Crystal
ICE SLURRY
CRYSTAL
DISTRIBUTION
PARTICLE
TETRAHYDROFURAN
HYDRATE
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Summary:The objective of the present work is to characterise, using an experimental microscopic observation device, the crystal size distribution (CSD) of ice and tetrahydrofuran (THF) hydrate slurries, which can be used as two-phase refrigerant fluids for cold transportation and storage in the field of secondary refrigeration. Three different solutes (ethanol, propylene glycol and sodium chloride) were used to form ice slurries. The studied hydrate was THF hydrate since it is stable at atmospheric pressure and in a temperature range suitable for refrigeration and air-conditioning applications. Experimental ice and THF hydrate slurry CSDs were compared to classical normal (Gaussian), log-normal, gamma, and Weibull (Rosin–Rammler) distributions. A comparison between ice and THF hydrate slurry CSD results showed that hydrate slurries were composed of crystals approximately 1.5 times smaller than ice crystals. The present results were shown to be useful input parameters for modelling thermophysical properties of slurry systems.
ISSN:0140-7007
1879-2081
DOI:10.1016/j.ijrefrig.2010.05.001