Consider the hollow-fiber BFW deaerator described in Example 2.14. If the water flow rate increases to \(60,000 \mathrm{~kg} / \mathrm{h}\) while everything else remains constant, calculate the fraction of the entering dissolved oxygen that can be removed.

Data From Example 2.14:-

Boiler feed water (BFW) must be deaerated to avoid corrosion problems in the boilers. Hollow fibers made of microporous polypropylene can be used for extremely fast removal of dissolved oxygen from water, therefore making a compact BFW deaerator possible (Yang and Cussler, 1986). For a given boiler, 40,000 kg/h of BFW is needed. Design a hollow-fiber membrane module for that purpose, if the unit can remove 99% of the dissolved oxygen present in natural waters at 298 K.