AN ANALYSIS OF COUNTERWASHERS FOR FREEZE-DISTILLATION DESALINATION,
Abstract
A hydrodynamic model based on Darcy's law is developed for counter-washers 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 decreasing the ice plug length below the screens and increasing ice crystal size, the ice plug length above the screens, the concentration of ice crystals in the slurry, and wall friction. Design criteria are presented for minimizing the capital cost for a given production rate. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1967
- Accession Number
- AD0660654
Entities
People
- Josef Shwartz
- Ronald F. Probstein
Organizations
- Massachusetts Institute of Technology