Palm oil biodiesel has been identified as a renewable energy source with a huge potential to replace liquid fossil fuels in the future. The current experimental work investigates the effect of using Al₂O₃ nanofuel produced by adding Al₂O₃ nanoparticles to 20 % blend of palm oil biodiesel with diesel fuel on the flame characteristics, radiation, temperature and pollutant emissions in an oil burner. A homogeneous suspension was prepared from Al₂O₃ nanoparticles, of the concentration of 500 ppm, in B20 blended biodiesel fuel. The Infrared Radiation (IR) of the flame, the flame temperature, luminosity, radiative heat flux and CO and NOx pollutant emissions were measured and compared with those of B20 fuel. The results indicate that Al₂O₃ nanoparticles enhance the evaporation rate of nanofuel droplets and shift the maximum flame temperature to the upstream region. Al₂O₃ nanoparticles favor scattering of heat over heat absorption, which accelerates flame heat transfer and decreases its temperature. Nevertheless, Al₂O₃ nanoparticles improve soot particles nucleation and surface growth and increase the highly emissive intermediate soot particles in the flame reaction zone. These intermediate soot particles enhance the luminosity and IR and total radiation heat transfer of the flame. The enhancement rate for average flame radiation of B20 blend fuel was as much as 10 % and higher concentrations of nanoparticles led to a substantial increase in the radiation heat flux. However, they cause an increase in the CO emission from 48 to 62 ppm which is in the standard level. Finally, the use of the nanofuel instead of B20 fuel decreases the NOx emission by 11 %.

棕榈油生物柴油已被确定为一种可再生能源，在未来取代液体化石燃料的潜力巨大。目前的实验工作调查使用Al的效果₂ ö ₃产生nanofuel通过添加Al ₂ ö _3个棕榈油生物柴油的纳米颗粒以20％的共混物上的油燃烧器的火焰特性，辐射，温度和污染物排放柴油燃料。由 Al ₂ O ₃制备均匀悬浮液纳米颗粒，浓度为 500 ppm，在 B20 混合生物柴油燃料中。测量了火焰的红外辐射 (IR)、火焰温度、光度、辐射热通量以及 CO 和 NOx 污染物排放量，并与 B20 燃料进行了比较。结果表明，Al ₂ O ₃纳米颗粒提高了纳米燃料液滴的蒸发速率，并使最大火焰温度向上游区域移动。Al ₂ O ₃纳米颗粒有利于热量的散射而不是吸热，这会加速火焰传热并降低其温度。尽管如此，Al ₂ O ₃纳米颗粒改善了烟灰颗粒的成核和表面生长，并增加了火焰反应区中高发射性的中间烟灰颗粒。这些中间烟灰颗粒增强了火焰的光度和红外线和总辐射热传递。B20 混合燃料的平均火焰辐射增强率高达 10%，更高浓度的纳米颗粒导致辐射热通量显着增加。然而，它们导致二氧化碳排放量从 48 ppm 增加到 62 ppm，这是标准水平。最后，使用纳米燃料代替 B20 燃料可将 NOx 排放量降低 11%。