The figure below shows a desalination circuit with two RO units. There are five

Question

The figure below shows a desalination circuit with two RO units. There are five streams, whose flowrates in kg/h are labelled as A, B, E. The mass fraction of salt in stream s xi. Unknown values are shown as You may assume the system is operating at steady state with no reactions xc 0.18 A 100 kg/h 0.003 xD 0.035 Question Completion St x 0.001 If you also know that the flowrate of stream D is D 62 kg/h, then determine the flowrate in kg/h of Stream E. Enter your answer rounded off to one decimal place and do not include units. f you believe that no answer is possible for this question, then type "Not Possible instead of a number in the answer space.

Explanation / Answer

Incoming flow rate at any unit has to be equal to outgoing flow rate.

The incoming flow rateb at unit-1 and one of the outgoing flow rates at unit-2 are given.

The flow rates at B, C and E can not be computed from these info.

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