Library Subscription: Guest
Begell Digital Portal Begell Digital Library eBooks Journals References & Proceedings Research Collections
Atomization and Sprays
IF: 1.262 5-Year IF: 1.518 SJR: 0.814 SNIP: 1.18 CiteScore™: 1.6

ISSN Print: 1044-5110
ISSN Online: 1936-2684

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

Atomization and Sprays

DOI: 10.1615/AtomizSpr.v14.i4.20
14 pages

EFFERVESCENT ATOMIZATION OF GASOLINE CONTAINING DISSOLVED CO2

A. Rashkovan
The Pearlstone Center for Aeronautical Studies, Department of Mechanical Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel
V. Kholmer
The Negev Academic College, Beer-Sheva, Israel
Eran Sher
Ben-Gurion University of Negev, Israel

ABSTRACT

An experimental study of the steady-state atomization process of gasoline containing dissolved CO2, is presented. A fuel injection system has been designed to produce a spray having a lower Sauter mean diameter (SMD) than that obtained typically with a direct fuel injection system for the same injection pressure. The downstream part of the injector consists of an inlet orifice, an expansion chamber, a swirl duct, and a discharge orifice. When the mixture enters the expansion chamber, apart of the dissolved gas is transformed into tiny bubbles that grow inside the expansion chamber. When the mixture is driven out through the discharge orifice, these bubbles undergo a rapid flashing process, resulting in a rapid disintegration of the liquid bulk into small droplets. In the present work, we investigate experimentally the effect of the design parameters (geometric proportions, injection pressure, and CO2 content) on the spray characteristics. The spray characteristics (SMD and D90) were measured with a laser particle size analyzer (Malvern X-Mastersizer), and a digital camera was employed to record the spray angle. An overall analysis has been performed to evaluate the advantage of the proposed method over its counterparts, in terms of the total energy required to produce a desired spray. It is concluded that the atomization of gasoline fuel containing dissolved CO2 is significantly promoted by the flash-boiling phenomenon and results in low-SMD and -D90 sprays. It was also found that the spray structure of a fuel/dissolved gas mixture is essentially different from that of a single-component fuel.


Articles with similar content:

SPRAY CHARACTERISTICS OF DIESEL FUEL CONTAINING DISSOLVED CO2
Atomization and Sprays, Vol.21, 2011, issue 11
Eran Sher, M. Karaeen
AN EXPERIMENTAL STUDY ON GASOLINE DIRECT-INJECTION SPRAY AND ATOMIZATION CHARACTERISTICS OF ALCOHOL FUELS AND ISOOCTANE
Atomization and Sprays, Vol.21, 2011, issue 5
Himesh Patel, Shanshan Yao, Ji Zhang, Tiegang Fang
EXPERIMENTAL STUDY ON SPRAY AND MIXTURE PROPERTIES OF THE GROUP-HOLE NOZZLE FOR DIRECT-INJECTION DIESEL ENGINES, PART I: A COMPARATIVE ANALYSIS WITH THE SINGLE-HOLE NOZZLE
Atomization and Sprays, Vol.19, 2009, issue 4
Keiya Nishida, Jian Gao, Yuhei Matsumoto
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
MACROSCOPIC SPRAY CHARACTERISTICS OF A POROUS INJECTOR
Atomization and Sprays, Vol.24, 2014, issue 1
Inchul Lee, Dohun Kim, Jaye Koo