The researche of perforated pipe’s use of filter modules in upgraded test rig
The article describes the result of two experiments on upgraded test rig for hydraulic research of elements of NPP sump strainer’s filters, which were conducted in order to determination of efficiency of perforated pipe’s use in the filter module’s slotted cylindrical gratings. The positive effect of existence of perforated pipes in the filter elements was identified, because the existence of ones provided less level of head loss. The effect was achieved by more equal distribution of water consumptions and debris in height of filter element.