Доступ предоставлен для: Guest
Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
Atomization and Sprays
Импакт фактор: 1.262 5-летний Импакт фактор: 1.518 SJR: 0.814 SNIP: 1.18 CiteScore™: 1.6

ISSN Печать: 1044-5110
ISSN Онлайн: 1936-2684

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

Atomization and Sprays

DOI: 10.1615/AtomizSpr.v18.i6.30
pages 511-522

FLOW-ADAPTED DESIGN OPTION FOR FREE-FALL ATOMIZERS

C. Czisch
University Bremen, Chemical Engineering Departmen, Badgasteiner Str. 3 D-28359 Bremen, Germany
Udo Fritsching
Department of Particles and Process Engineering, University of Bremen; Foundation Institute of Materials Science, Badgasteiner Str. 3, D-28359 Bremen, Germany

Краткое описание

Free-fall gas atomizers are often used for liquid solution and melt atomization in the area of powder production and spray forming applications. This external mixing atomizer often uses two separate gas nozzle systems, namely, a primary gas nozzle (for prevention of major gas recirculation flow in the atomization area) and a secondary gas nozzle (for atomization), both concentrically surrounding the central liquid jet. Due to this specific arrangement, the atomization area is separated from the atomizer body, however the primary and secondary gas pressures need to be carefully adjusted. To improve the free-fall atomizer construction and operating conditions, the gas flow field of a conventional free-fall atomizer was investigated by numerical simulations. Aim of the investigation was to economize the primary gas application, while safely operating the atomizer without recirculations. Advantages of the derived flow-adapted atomizer design are a reduction in gas consumption, as well as the potential of generation of smaller particles. This effect was proven by atomization of a viscous melt.


Articles with similar content:

GAS FLOW EFFECTS ON TWIN-FLUID ATOMIZATION OF LIQUID METALS
Atomization and Sprays, Vol.10, 2000, issue 1
Ulrich Heck, Udo Fritsching, Klaus Bauckhage
A STUDY OF LIQUID METAL ATOMIZATION USING CLOSE-COUPLED NOZZLES, PART 2: ATOMIZATION BEHAVIOR
Atomization and Sprays, Vol.15, 2005, issue 1
Steven P. Mates, Gary S. Settles
Viscous, Cohesive, Non-Newtonian, Depositing, Slurry Pipe Flow
International Journal of Fluid Mechanics Research, Vol.39, 2012, issue 3
Habib Alehossein, Zongyi Qin, Baotang Shen
Applied Geodynamics of Explosions
International Journal of Fluid Mechanics Research, Vol.23, 1996, issue 1-2
L. I. Demeshchuk, A. A. Vovk
Two phase flow liquid metal behavior in propulsion chamber
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 2015, issue
Ryo S. Amano, Y.H. Yen