Exploring the Benefits of Annular Rectangular Rib for Enhancing Thermal Efficiency of Nonpremixed Micro-Combustor

Table 4

Results of two types of micro-combustors under different equivalence ratios.

Heat transfer properties		Equivalence ratios
		0.9	0.8	0.7
Mean outer wall temperature (K)	Without rib	1096.773	1064.245	1009.532
	With rib	1116.656	1111.187	1077.419
Outer wall temperature difference (K)	Without rib	173.4	167.679	153.287
	With rib	151.56	142.83	135.75