Ranking Renewable and Fossil Fuels on Global Warming Potential Using Respiratory Quotient Concept

Figure 6

Variation of RQ and equivalence ratio with respect to dry carbon dioxide with oxygen mole fraction in the flue gas as parameter (see the Appendix for relations). Solid lines: RQ with as parameter; dashed lines: ER with as parameter. As CO₂% in exhaust increases, it implies increasing RQ for given O₂%. At given CO₂%, increase in O₂% in exhaust implies increasing RQ.