图书馆订阅: Guest
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集
雾化与喷雾
影响因子: 1.262 5年影响因子: 1.518 SJR: 0.814 SNIP: 1.18 CiteScore™: 1.6

ISSN 打印: 1044-5110
ISSN 在线: 1936-2684

卷:
卷 29, 2019 卷 28, 2018 卷 27, 2017 卷 26, 2016 卷 25, 2015 卷 24, 2014 卷 23, 2013 卷 22, 2012 卷 21, 2011 卷 20, 2010 卷 19, 2009 卷 18, 2008 卷 17, 2007 卷 16, 2006 卷 15, 2005 卷 14, 2004 卷 13, 2003 卷 12, 2002 卷 11, 2001 卷 10, 2000 卷 9, 1999 卷 8, 1998 卷 7, 1997 卷 6, 1996 卷 5, 1995 卷 4, 1994 卷 3, 1993 卷 2, 1992 卷 1, 1991

雾化与喷雾

DOI: 10.1615/AtomizSpr.2015012253
pages 463-482

AN EXPERIMENTAL STUDY ON MICROSCOPIC CHARACTERISTICS OF FLASH BOILING SPRAY WITH EXTENDED GLARE POINT VELOCIMETRY AND SIZING

Shenghua Yang
State Key Laboratory of Engines, Tianjin University, 92 Weijin Road, Tianjin 300072, China
Tianyou Wang
State Key Laboratory of Engines, Tianjin University, 92 Weijin Road, Tianjin 300072, China
Ming Jia
School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, China
Shiquan Shen
State Key Laboratory of Engines, Tianjin University, 92 Weijin Road, Tianjin 300072, China
Zhuo Yao
State Key Laboratory of Engines, Tianjin University, 92 Weijin Road, Tianjin 300072, China

ABSTRACT

Flash boiling spray can produce superior atomization and promote the fuel/air mixture formation for gasoline direct injection engines, which are further capable of reducing fuel consumption and harmful emissions. Most recent studies on flash boiling spray focus on the macroscopic characteristics. The microscopic characteristics (i.e., diameter and velocity of droplets) of flash boiling spray, which determine the combustion and exhaust emissions in internal combustion engines, are not well explored yet. In flash boiling spray, the high number density of droplets causes serious multiple scattering, low signal to noise ratio, and high deviation of droplet diameter, making most of the well-known techniques for measurements of microscopic characteristics of droplets unsuitable for flash boiling spray. Thus, the extended glare point velocimetry and sizing technique is improved and utilized for the measurement in this paper. The droplet size and velocity of flash boiling spray were obtained under various conditions of fuel temperature and ambient pressure for the first time. It was found that flash boiling has the effects of promoting the atomization process, reducing the local Sauter mean diameter (SMD), and narrowing the diameter distribution of the droplets. Additionally, the overall results demonstrate that flash boiling spray is an effective approach for producing fine droplets with uniform size.


Articles with similar content:

EFFECT OF ETHANOL AND AMBIENT PRESSURE ON PORT-FUEL-INJECTION SPRAYS IN AN OPTICALLY ACCESSIBLE INTAKE CHAMBER
Atomization and Sprays, Vol.21, 2011, issue 5
Evatt R. Hawkes, Srinivas Padala, Sanghoon Kook
INVESTIGATION OF RAPID ATOMIZATION AND COLLAPSE OF SUPERHEATED LIQUID FUEL SPRAY UNDER SUPERHEATED CONDITIONS
Atomization and Sprays, Vol.26, 2016, issue 12
Hujie Pan, David L. S. Hung, Tianyun Li, Min Xu, Shengqi Wu
MACROSCOPIC AND MICROSCOPIC CHARACTERISTICS OF GASOLINE AND BUTANOL SPRAY ATOMIZATION UNDER ELEVATED AMBIENT PRESSURES
Atomization and Sprays, Vol.28, 2018, issue 9
Yanfei Li, Hengjie Guo, Yitao Shen, Liuyang Feng, Xiao Ma, Longfei Chen
AN EXPERIMENT STUDY ON PHENOMENON AND MECHANISM OF FLASH BOILING SPRAY FROM A MULTI-HOLE GASOLINE DIRECT INJECTOR
Atomization and Sprays, Vol.23, 2013, issue 5
Shenghua Yang, Zhiping Song, Zhuo Yao, Tianyou Wang
ARTIFICIAL CONTROL OF SPRAY DYNAMICS APPLYING FUEL DESIGN APPROACH RELATED TO FLASH BOILING
Atomization and Sprays, Vol.27, 2017, issue 7
Eriko Matsumura, Jiro Senda