Prediction of Calcium Carbonate Scaling from Water in Solar-Energy Systems

摘要

Water samples collected from subsystems at five Department of Energy-sponsored solar-energy sites were assessed for chemical scaling deposition. Collector surfaces are the most likely area for scale formation, and the deposits are most likely to be calcium carbonate. Various techniques that solar designers and operators can employ to predict scaling on heat-transfer surfaces and to determine whether water treatment is required to prevent it are described. (ERA citation 05:015427)