Water Mist and Cultural Heritage: can Simulation Tools help assessing its effect?

The_Blue_Boat_1892_Winslow_Homer – Museum of Fine Arts – Boston 

Watercolor images are among the most vulnerable artefacts to the effects of firefighting water  systems.

According to the NFPA 750 definition, watermist is a water spray for which the 99% of the total volume of liquid (Dv0.99) is distributed in droplets with a diameter smaller than 1000 microns at the minimum design operating pressure of the water mist nozzle.A slightly different definition has been introduced by the CEN/TS 14972,  as a water spray for which the 90% of the total volume of liquid (Dv0.90) is distributed in droplets with a diameter smaller than 1000 microns at the minimum design operating pressure of the water mist nozzle. Continue reading “Water Mist and Cultural Heritage: can Simulation Tools help assessing its effect?”