Freeze-Shut Conditions of Water or Solution Flow in an Isothermally Cooled Parallel Plate Channel

Ice formation phenomena as well as freeze-shut conditions of flowing water in an isothermally cooled parallel plate channel are examined. 4.6 wt% ethylene glycol solution is also used as a test fluid to compare the results with those of water. It is found that the thermal properties of ice formed in the solution flow are different from thhose of ice formed in water flow, and that a mushy ice formed in the solution at expanded flow regions significantly affects the freeze-shut conditions. The present analytical results for freeze-shut conditions of water as well as solution flows agree with the experimental data, and it is seen that the occurrence of freeze shut is more difficult in the case of 4.6 wt% ethylene glycol solution than in the case of water.