| With increasing concerns over harmful effects of petroleum based fuels on the environment, emission norms are becoming more and more stringent with each passing day. This motivated many researchers to focus on the field of bio-fuels, since bio-fuels are renewable and environment friendly, they provide perfect solution as the alternate fuels for petroleum based fuels. But to use bio-fuels directly in compression ignition engines efficiently, it will need alterations in engine designs. As a result of this, commercially bio-fuels are blended with petroleum based fuels or ethanol/butanol. Since the volatilities of diesel/gasoline and bio-fuels are significantly different, micro-explosion can be expected in the blend mixture. In this study, an overview of experimental studies on the micro-explosion phenomenon in different blend fuel droplets, both miscible and emulsions is given also the conceptual findings regarding micro-explosion are noted. Effects of the different parameters such as ambient temperature, pressure and droplet blend composition on the occurrence of micro-explosion are discussed, on the account of past researches. And small account of numerical model developments is also provided. |
