An analysis of counterwashers for freeze-distillation desalination
| Autor: | Josef Shwartz, Ronald F. Probstein |
|---|---|
| Rok vydání: | 1968 |
| Předmět: |
Ice crystals
Petroleum engineering Mechanical Engineering General Chemical Engineering General Chemistry Desalination law.invention Brine Pumpable ice technology law Slurry Environmental science General Materials Science Geotechnical engineering Spark plug Distillation Water Science and Technology Gravity feed |
| Zdroj: | Desalination. 4:5-29 |
| ISSN: | 0011-9164 |
| DOI: | 10.1016/s0011-9164(00)84032-1 |
| Popis: | A hydrodynamic model based on Darcy's law is developed for flooded counterwashers of the type used in washing brine from ice crystals. In the model the brine is displaced by fresh water from the interstices of the ice plug. Similarity parameters which can be used for comparing the performance of different counterwashers are derived. Both analytic and numerical solutions are presented. The production rate of fresh water is found, for example, to increase with an increase in the ice crystal size, the ice plug length above the screens, the concentration of ice crystals in the slurry, and the external mechanical restraining forces on the ice plug. It is also found to increase with a decrease in the ice plug length below the screens, where this length is shown to be an independent parameter of the problem under certain slurry feed conditions, such as gravity feed. Design criteria are presented for minimizing the capital cost for a given production rate. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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