Unformatted text preview: -use oxygen in equation with compound then use 1/21 (oxygen in composition of air) 3)Use PV=nRT to find volumetric flow rate Dry basis : (combustion with excess O2) with unknown methane Basis-100mol dry 1)make percents into mols using basis and find water by using both eq 2)Find mols of methane fed(using 2 balanced eq) 3)Find actual O2 by adding amount from each compounded (ie o2 +CO2 + CO/2 + H2O/2) 4)Excess is Actual-Theor/theor Extent of reaction: n i = n io + υЄ (after=before + coeff. * extent f reaction ) Chapter 5 hints / formulas IDEAL: PV=nRT (can replace v & n for flow) can become ρ=g/v=((MW)*P)/(RT) Dalton’s Law: M total RT/ V = M A RT/ V + M B RT/ V + etc P total =P A +P B CAN USE z (corrective factor) when pressure or something ends up odd (near 1 means it doesn’t matter) will always go near T (find T R = T/T C and P R =P/ P C to find z or V(ideal)= P C V( hat )/(R T C ) to find V( hat ) use ideal pressure/temp (standard)...
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- Spring '08
- Fluid Dynamics, Mass flow rate