Other parameters that were considered in the feasibility study were sprinkler durability, water supply, and water delivery on the longwall face. The typical water supply to a longwall face should be adequate for an automatic sprinkler system. Utilization of a 2-inch diameter flexible high pressure hose should meet space, mobility, and safety constraints. After all these factors are considered, it appears feasible that automatic sprinkler systems can be effectively used for fire control along longwall faces if warranted by the incidence of fires. The study of water film thickness effects from automatic fire sprinklers is necessary because the US Department of Energy recently mandated the use of automatic fire protection for the fuel fabrication facility at the Savannah River Site (SRS). ![]() The primary nuclear criticality safety concern with overhead automatic fire sprinkler systems is the coating effect (film) as it spreads over the fissile material surface. This would affect nuclear criticality safety because moderating materials (water, plastic, and paper) are currently limited in arrays of fuel components to ensure subcriticality.
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