Questions.answers.docx

Question 1: Ref sections C.6.2 and Task 7.1.2: In the scope of the BWR and PWR plant simulation modeling, is there any requirement or desire to include systems and components beyond what is provided in the standard MELCOR code package. This includes the scope of plant electrical systems, service and cooling water systems, ventilation systems, and Control Room instrumentation and controls, which are not comprehensively modeled in the MELCOR code package.

Answer 1: There is no requirement to include systems and components beyond what is provided in the standard MELCOR package.

Question 2: Ref section C.7.1 Task 7.1.2: Do the severe accident models need to be based on the current MELCOR release version (MELCOR 2.1) or are previous versions acceptable?

Answer 2: The current MELCOR version should be used.

Question 3: Ref section “C.2 – Introduction” mentions the desire to have the “capability to conduct training…. for Severe Accident Management Guidelines (SAMG) and FLEX Strategy” However, there are no tasks listed in the task section (C.7.1) to provide models for implementing the FLEX strategies. Are there any FLEX specific requirements for the simulators provided for the BWR and PWR plant models?

Answer 3: This was an oversight. We would like the ability to add a FLEX pump during a scenario. We would also like the instructor to have the ability to define the value of the flow rate.

Question 4: General – What is the intended use of the touch-screens (instead of regular non-touch displays)?

Answer 4: The touch screen displays were specified for the convenience of the instructor. We were not sure how much functionality might be available for controlling the scenario from the display screen. For example, if a FLEX pump could be activated by clicking on an icon somewhere on the screen it was thought it might be easier than using a mouse.