1. ME 475/675 Introduction to Combustion Lecture 8

2. Announcements

3. Dissociation

4. Equilibrium Products of Combustion

5. Fuel Rich Get CO, H 2 Fuel Lean O 2 T ad [K] “Old” “New”

6. Minor-Specie Mole Fractions

7. Simple Product Calculation method

9. CO 2 H2OH2O O2O2 N 2 /10

11. Atomic Balances

12. Solution

13. CO 2 H2OH2O H2H2 N 2 /10 CO

14. Air Preheaters Preheating the air using exhaust or flue gas increases the flame temperature Recuperators uses heat transfer across a wall Regenerators use a moving ceramic or metal matrix

15. Exhaust or Flue Gas Recirculation Inserting exhaust gas into the reactants reduces flame temperature, which can reduce pollution (oxides of nitrogen, NO, NO 2 )