کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
787559 | 1466480 | 2007 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Solid fraction modelling for CO2 and CO2–THF hydrate slurries used as secondary refrigerants Solid fraction modelling for CO2 and CO2–THF hydrate slurries used as secondary refrigerants](/preview/png/787559.png)
In the present paper, the suitability of hydrate slurries in secondary refrigeration was investigated by the means of a new hydrate solid-fraction model. Considering the high melting enthalpy of CO2-containing hydrates, slurries presenting high hydrate solid fractions can carry sufficient latent heat to be useful for a two-phase secondary-refrigerant application. The model presented in this paper allowed to calculate the solid fraction of CO2 and CO2–THF hydrate from thermodynamic conditions of pressure and temperature. Contrary to a previous work on single CO2 hydrates in a closed system, the present model can take into account hydrate mixture and is well adapted to additional CO2 injections (opened system). By relying on the hydrate-conversion model results, the study of hydrates in suspension in a carrying liquid was also studied in an experimental loop and was based on a formation process by CO2 injection in a cooled aqueous solution.
Journal: International Journal of Refrigeration - Volume 30, Issue 5, August 2007, Pages 758–766