Split_00021 - 8.46 (cont'd) c. Q = H = ni Hi - ni Hi out in...

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8- 21 8.46 (cont’d) c. Q H nH V ii out in == = × ∑∑ Δ ±± . . mol Pa m mol K K Pa air 3 100 8314 323 101325 10 5 Q V out in air 3 mol Pa m mol K K Pa = × . . 100 8 314 323 101325 10 5 d. 2 C superheat C mm Hg 760 mm Hg m o l HOm o l 2 °⇒ = ∗° y p p 1 48 8371 0110 bg . . saturation at outlet ⇒= y p p 2 20 17 535 0023 C mm Hg 760 mm Hg m o l o l 2 . . dry air balance: 100 1 0110 1 0 023 9110 22 b g b g −= −⇒ = .. . nn mol H O balance: mol H O 0.018 kg 1 mol kg H O condensed 2 2 2 100 0110 9110 0 023 890 0160 33 b g . . . =+ = = Q H out in = =−= Δ . 4805 kJ V air 3 3 2 3 2 3 3 3 mol Pa m mol K K Pa m kg H O condensed 2.65 m air fed
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This note was uploaded on 01/07/2012 for the course CH E 210 at Pennsylvania State University, University Park.

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