0.48 0.46 * 0.44 0 z 0.42 w 0 0.4 W P 2 0.30 I $ 0.36 0.34 0.32 0.3 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 STEAM TO AIR RATIOS Fig. 6.4. Effect of steam air ratio (S) on STIG ‘thermal’ efficiency (after Lloyd [2]). Princeton University Library. m W