Comments on “an analysis of counterwashers for freeze-distillation desalination” by Shwartz and Probstein

✍ Scribed by P. Harriott; J.P. Leinroth Jr.; R.L. Von Berg; H.F. Wiegandt

• Book ID: 104112698
• Publisher: Elsevier Science
• Year: 1969
• Tongue: English
• Weight: 217 KB
• Volume: 6
• Category: Article
• ISSN: 0011-9164
• DOI: 10.1016/s0011-9164(00)80015-6

✦ Synopsis

In their analysis of piston beds (counterwashers) for ice purification, Shwartz and Probstein (I) present conclusions that are contrary to current practice and to recent analog studies (2). They say that the net ice production rate: I. is directly proportional to the restraining force on the bed (wall friction plus mechanical force applied at the top of the bed); 2. increases sharply with decreasing bed length below the screen; and 3. increases considerably with increasing bed length above the screen. They also say that: 4. in the absence of dispersion, all brine can be displaced from the beds with zero net wash_ The first three conclusions are changed by reinterpretation of the author's results, as shown below.