Engineering, 06.06.2020 16:59 ryanghost90
A stream of humid air enters a condenser in which 95% of the water vapor in the air is condensed. The flow rate of the condensate (the liquid leaving the condenser) is measured and found to be 225 L/h. Assume dry air contains 21 mole% oxygen, with the balance nitrogen. A1 (mol dry ain/h) 0.21 mol O2/mol 0.79 mol N2/mol A2 (mol H2O9(v)/h) A4 (mol O2/h) A5 (mol N2/h) A6 (mol H2O(v)/h) 019 L H2O(1)/h n3 (mol H2O(1)/h) (95% of water in feed) Does this look familiar, yet?Suppose we had one more piece of information: a relation where we know that the air entering the condenser contains 10.0 mole% H20. Now the flowchart looks as below: n1(mol/h) 0.100 mol H2O(v)/mol 0.900 mol dry air/mol 0.21 mol 0/mol dry air 0.79 mol Ny/mol dry air n3(mol O2/h) n4(mol N2/h) n5(mol H2O(v)/h) 225 L H2O(I)h n2(mol H2O(l)/h) (95% of water in feed) A) Write out the degree of freedom analysis for the problem including this new piece of information. B) Solve the material balance for all unknowns. Keep the quantities in terms of moles (no need to convert to grams). Look up the density of water from a reliable source. C) What is the total moles of gas leaving the condenser?
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A stream of humid air enters a condenser in which 95% of the water vapor in the air is condensed. Th...
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