Prevention of Frazil Ice Clogging of Water Intakes by Application of Heat,

摘要

The phenomenon of ice formation in flowing water and the technology of heating trashrack bars to prevent clogging by frazil ice are reviewed. The report includes: (1) A description of frazil ice formation, (2) development of heat transfer equations for trashrack bars immersed in a fluid, (3) correlation between conditions assumed in developing the theoretical expressions and actual conditions present in a water intake, (4) economics of heating trashrack bars, (5) methods of heating trashrack bars,and (6) recommendations for future studies.