OPEN ACCESS
The effect of nozzle diameter on spray characteristics including spray penetrations, core angle (far field) and Sauter mean diameter (SMD) were investigated in a constant volume combustion chamber. The nozzle diameter at the time of fuel injection were set to 0.20mm, 0.18mm, 0.14mm. Results indicate that penetration length reduces with the decrease of the nozzle diameter from 0.20mm to 0.14mm. However, they have little effect on core angle and the variation of core angle is less decreased at three conditions. In the process of spray development, spray penetrations show a linear growth before they keep a relatively stability value. The far-field spray cone angle shows a first suddenly enlarging and later maintains a constant value, but the results are affected by measurement mode. SMD suddenly decrease and later keep a constant value.
Nozzle diameter, Penetration length, SMD, Core angle
[1] Huang H aozhongaozhong, An Y anzhaoanzhao, Su W anhuaanhua, “Influence of injection pressure and nozzle diameter on spray characteristics of a di esel engine, engine,” Journal of Internal Combustion Engine Engine, vol. 31 , pp. 200 -207207, 2013.
[2] Woon Phui Law Law, Jolius Gimbun, “Influence of nozzle design on the performance of partia l combustion lance: a CFD study, study,” Chemical Engineering Research and DesignDesign, 2015. DOI: 10.1016/j.cherd.2015.09.020 2015.09.020.
[3] Wang B inghaoinghao, Wei J ianqinianqin, Li Q iangiang, “Influence of nozzle structure factor on spray characteristics of pressure swirl injector injector,” Journal of Internal Combustion EngineEngine, vol. 2, pp. 167 -171171, 2007.
[4] Wang L inaina, “Constant volume spray characteristics of indoor water emulsified diesel oil, oil,” Huazhong
University of Science and Technology Technology, 2012.
[5] Anne Kösters Kösters, Anders Karlsson Karlsson, Raúl Ochoterena Ochoterena, etc. , “Diesel Sprays Sprays-modeling and validation validation” [ ILASS Estoril PortugalPortugal, 2011.
[6] Zhang X ushengusheng, Li L iguangiguang, “Experimental study on spray characteristics of biodiesel biodiesel,” Journal of Internal Combustion Engine Engine, vol. 2, pp. 172 -176 , 2007.