Reactor board

Larger emissions or consumption of scarce resource could occur elsewhere in the lifecycle via the large-scale introduction of process intensification. For example, the proposed printed circuit board reactors could in the manufacturing step cause large emissions of VOCs from cleaning chemicals. And the demolition phase could... 

A criticality accident aboard the submarine identified as factory number 421 is known to have caused over pressurization of the right board reactor pressure vessel (RPV). The fuel rods were reported to not be damaged however, a decision was made to not re-use the RPV. As such, the SNF was not removed. 

In modeling the left board reactor with its damaged SNF, it is assumed that 80% of the fission products and actinides are in the RPV the balance are located at the top of the SG. 

Typically, the distribution of LMR primaiy circuit activation products was approximately 30% in the SG, 40% in the RPV, and the balance throughout the remainder of the circuit and the volume compensator. However, in modeling the two LMRs, conservative assumptions were made. For the left board reactor where the accident occurred, 30% of the primary circuit activation products are... 

TABLE IV. ESTIMATED 1994 ACTIVITY OF LONG-LIVED RADIONUCLIDES IN THE LEFT BOARD REACTOR PRESSURE VESSEL WITHIN THE REACTOR COMPARTMENT FROM NUCLEAR SUBMARINE FACTORY NUMBER 901 DUMPED IN THE ABROSIMOV FJORD [3, 12]... 

SGs of the damaged left board reactor were filled with Furfurol(F) via the secondary circuit ... 

The steam generators, the port SG contains the remaining 20% of the fuel firom the left board reactor (i.e., 10% of the total inventory of the submarine SGI) in the form of damaged fuel pins, and both SGs contain activation products in the Pb-Bi coolant. 

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