Experimental Investigation on Macro Spray Characteristics of Octanol-Biodiesel-Diesel Ternary Fuel Blend  

作　　者：Tian Junjian Qiu Zhicong Zhao Lifei Li Fengyu Hu Peng Lin Qizhao 

机构地区：[1]Department of Thermal Science and Energy Engineering,University of Science and Technology of China,Hefei 230027,China [2]State Key Laboratory of Compressor Technology,Hefei General Machinery Research Institute Co.,Ltd.,Hefei 230031,China

出　　处：《China Petroleum Processing & Petrochemical Technology》2023年第4期1-15,共15页中国炼油与石油化工（英文版）

基　　金：supported by the National Key R&D Program of China (2021YFF0601004);Natural Science Foundation of Anhui Province (2208085QE159)。

摘　　要：This study investigates the spray characteristics of ternary blends composed of octanol, biodiesel, and diesel fuel.Experiments are conducted using six materials to examine the variation in spray characteristic and to verify and compare a previously established spray tip penetration model with a modified model. The results show that the addition of OB100(30%of octanol, 70% of biodiesel) improves the spray characteristics of the fuel. Specifically, the addition of 10% or 20% of OB100 leads to a slight increase in the spray tip penetration, average spray cone angle, maximum spray width, and the spray area of the fuel blend;however, further addition of OB100 causes a corresponding decrease in these parameters. Based on previous research, this study uses kinematic viscosity instead of dynamic viscosity and density to modify the prediction model of spray tip penetration. The modified model exhibits a better fit quality and agreement with the experimental data,making it more suitable for predicting the spray tip penetration of fuel blends compared to the Hiroyasu-Arai model.

关 键 词：OCTANOL BIODIESEL ternary fuel blend maximum spray width modified model 

分 类 号：TQ517.46[化学工程]