Author(s): LIU Jian-xin, BAO Guan-yang, DU Hui-yong, WANG Zhan-cheng, XU Bin
Pages: 55-58,63
Year: 2014 Issue:  6
Journal: Vehicle Engine
Keyword:  acidic oil; biodiesel; fuel atomization; spray impingement; entrainment;
Abstract: In order to study the feasibility of using acidic oil biodiesel as the alternative fuel for vehicle diesel engine ,the im‐pingement phenomenon in high pressure vessel was researched and the influences of impingement distance and angle on impinge‐ment process were analyzed .The results show that the fuel beam of acidic oil biodiesel has the same shape as that of diesel after impingement .Compared with diesel ,the diffusion diameter and entrainment height of acidic oil biodiesel are slightly larger . With the increase of impingement incidence angle ,the radius of spray upstream and downstream for the acidic oil biodiesel de‐crease and increase respectively and the mixture entrainment near the wall strengthened with little change of entrainment height .With the increase of impingement distance ,the spray diffusion diameter and entrainment height decrease and the mix‐ture entrainment near the wall weakens .