The calculations show that Z-IETD-FMK
even a rather modest flow through the leaking fibers can significantly affect the permeate concentration. Assuming that the flows through the leaking fibers are identical, the flow through one fiber isQL1 = QL/n. This assumes essentially that all fibers break at the same location, that is, at a certain distance s from the inflow section; Table 2 gives the flow in a single leaking fiber under such conditions. The values in Table 2 indicate similar flows through a single leaking fiber in all cases, except Case 4 where the value is higher.
Flow through one leaking fiber from four experimental cases.CaseQL1 (m3/h)10.01320.01330.01240.022Full-size tableTable optionsView in workspaceDownload as CSV
The derived flows
in Table 2 were compared with calculated flows based on Eq. (6) using the appropriate f depending on the flow conditions. For families
comparison, the contributions to the flow from the top and bottom part of the leaking fiber were added together. Since the flow conditions in the two parts vary depending on where the leak occurs, calculations become somewhat complicated and the most straightforward approach is to compute the flows for different possible locations of the leak (s).