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PWR Dispersant Review & Update, OptiSperse PWR6600 by Anthony Rossi, GE

This presentation addressed the dispersion of iron oxides in steam generator (SG) systems using the OptiSperse polyacrylate dispersant without any sulfates or chlorides. Testing showed very high dispersion activity with very low polyacrylate dosages. The effectiveness of the treatment at reducing corrosion and thermo-hydraulic instabilities was discussed. Advantages include improved long-term thermal performance of the SG, potential for long-term reduction in routine off-line cleaning frequency, and the long-term goal of a reduction in frequency or complete avoidance of full bundle SG chemical cleaning.

Revision Date:  10/27/2010

Tags:  221113 - Nuclear Electric Power Generation * , GE, Corrosion Inhibitor, Dispersant