Primary sodium ACS

PRISM includes a nonsafety-related auxiliary decay heat removal system referred to as the primary sodium ACS (PSACS) for use during (1) IHTS and SG maintenance operations and (2) in case of an inadvertent IHTS loop drain, or a drain performed because of a steam to sodium leak. By adding this system, plant downtime as a result of scheduled SG inspections and IHTS maintenance operations can be reduced. 

Blood agents are common industrial chemicals that have been used on the battlefield to produce casualties. Two primary types of blood agents used by the military are hydrogen cyanide (AC) and cyanogen chloride (CK). Poisonous effects of cyanide have been well known since ancient times. Cyanide was the first blood agent used as a chemical warfare agent. Cyanides are salts with the metals potassium, sodium, and calcium most commonly used to form the compounds. The term blood agent ... 

The relative elevations of the core, IHX, an air cooler (AC) of the ACS and steam generator (SG) are appropriately arranged to assure natural circulation of the sodium in each primary and secondary loop. 

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