Crud is released from surfaces to which it is adhered to become suspended in the reactor coolant by: • Chemical shock • Thermal shock • Mechanical shock. If the shock causes a relatively …

CRUD may be defined as deposited or suspended circulating corrosion products, principally metal oxides, formed by the reaction of water with piping materials. According to the ICRP, CRUD …

By World War II, soldiers called any unknown illness "the crud," and a comic book of the era featured a Corporal Crud as one of its characters. It seems likely that the negative …

CRUD: Another Acronym Bites the Dust Chalk River Unidentified Deposits (CRUD). The nuclear industry loves its acronyms, and the myth behind CRUD—a term for corrosion particles that …

Oct 1, 2024 · Outage and CRUD-burst monitoring. GammaTrend was initially developed based on the feedback of radiation protection managers who saw the potential to improve the monitoring …

• Initial usage: CRUD Burst monitoring • More recently: • Online and Outage monitoring to support source term understanding and STR initiatives • KOH injection pilot (potential source term …

The release of crud in this fashion is termed a crud burst. Crud bursts often lead to the removal of protective corrosion films and make the freshly exposed metal more susceptible to additional …

The causes of a crud burst in the reactor coolant are: Increased oxygen concentration Reduced (or significantly changed) pH Large temperature change Physical shock (for example, starting …

Crud on fuel has both positive and negative effects on the operation of nuclear power plants. The fuel acts as a trap for corrosion products, limiting deposition on other system surfaces where it …

On to crud bursts! On FEB. 19, 2000 We injected Hydrogen peroxide into our Reactor Coolant system. This was to oxygenate the water to enhance the removal corrosion products. During …