Figure 4From: Experimental study of combustion characteristics of nanoscale metal and metal oxide additives in biofuel (ethanol) Volume and gravimetric heat of combustion, ethenal with pure aluminum oxide nanoadditives. (a) Volumetric HoC of ethanol + n-Al2O3 samples, and (b) volumetric and gravimetric HoC of ethanol + n-Al2O3 samples.Back to article page