In this study, spray characteristics of waste cooking oil, bio-hydro fined diesel oil and n-tridecane are reported. Bio-hydro fined diesel oil (BHD) is known as a second generation fuel made from bio hydro finning process. The results of chemical properties from the hydro finning process in vegetable oils are nearly the same as diesel oil. BHD has low viscosity and high oxidation stability which is better than the trans-esterification process of biodiesel (FAME). The experiments were conducted in a constant volume chamber in the room temperature for non-evaporating and 400, 500 and 600 K for evaporating. The pressure injections in the room temperature were varied from 50, 100 and 150 MPa. Then, the pressure injection for evaporating was 100 MPa respectively. The results show that the spray tip penetration in non-evaporating and evaporating conditions of waste cooking oil is higher than BHD oil and n-tridecane. Nevertheless, the spray angle of waste cooking oil is smaller than BHD oil and n-tridecane. These results imply due to the high viscosity and density in waste cooking oil.

在这项研究中，报告了废弃食用油，生物氢精制柴油和正十三烷的喷雾特性。生物水精制柴油（BHD）是由生物水精制工艺制成的第二代燃料。植物油中加氢精制过程产生的化学性质结果与柴油几乎相同。BHD具有低粘度和高氧化稳定性，优于生物柴油的酯交换过程（FAME）。实验在室温下在恒定容积的室内进行非蒸发，在400、500和600 K下进行。室温下的压力注入范围为50、100和150 MPa。然后，用于蒸发的压力注入分别为100MPa。结果表明，在废蒸煮油的非蒸发和蒸发条件下，喷嘴的渗透率要高于BHD油和正十三烷。但是，废食用油的喷射角小于BHD油和正十三烷。这些结果暗示由于废烹饪油中的高粘度和高密度。