A comprehensive experimental study on nucleate boiling in gasoline and gasoline-ethanol blends

摘要: Abstract Recent advances in fuel research have identified many benefits associated with heating fuels before they are injected into internal combustion engines, including improved cold starting and reduced greenhouse gas emissions. Extensive has also been carried out alternative, renewable biofuels. Of these, ethanol, which is normally used ethanol-gasoline blends, one of the most promising. However, although characteristics uses heated much discussed literature, it important to improve our understanding fuel-heating process, frequently involves nucleate boiling. This paper describes a comprehensive, novel experimental study boiling pure gasoline, ethanol gasoline-ethanol blends. The heat transfer coefficient, critical flux hysteresis effect analyzed for each test fluid, some considerations on pressure presented. For all coefficient increased increasing pressure. Addition gasoline did not significantly change until mole fraction exceeded 35%. behavior indicates existence an azeotrope close 20%. Finally, exhibited partial nucleation during at pressures greater than 202 kPa . gradually eliminated this total was achieved.