Inscrição na biblioteca: Guest
Portal Digital Begell Biblioteca digital da Begell eBooks Diários Referências e Anais Coleções de pesquisa
Atomization and Sprays
Fator do impacto: 1.737 FI de cinco anos: 1.518 SJR: 0.814 SNIP: 1.18 CiteScore™: 2.2

ISSN Imprimir: 1044-5110
ISSN On-line: 1936-2684

Volumes:
Volume 30, 2020 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.2011001761
pages 159-165

PREDICTION OF EVAPORATION TIME AND RATE OF WATER SPRAYS FROM THEIR LOCAL

Pisit Yongyingsakthavorn
Department of Mechanical and Aerospace Engineering, Faculty of Engineering, King Mongkut's University of Technology North Bangkok, Thailand
Pumyos Vallikul
Department of Mechanical and Aerospace Engineering, Faculty of Engineering, King Mongkut's University of Technology North Bangkok, Thailand; Center on Energy Technology and Environment, Office of the Commission on Higher Education, Ministry of Education, Thailand
Christophe Dumouchel
Université et INSA de Rouen France
Bundit Fungtammasan
Center on Energy Technology and Environment, Office of the Commission on Higher Education, Ministry of Education; The Joint Graduate School of Energy and Environment, King Mongkut's University of Technology Thonburi, Bangkok, Thailand
Kunlanit Tuntivoranukul
King Mongkut's University of Technology North Bangkok; Center on Energy Technology and Environment, Office of the Commission on Higher Education, Ministry of Education, Thailand

RESUMO

A method to determine time-dependent volume-based drop-diameter distribution of an evaporating group of drops heterogeneous in size and distributed over an entire cross section of a water spray is proposed in this paper. Using the fact that the number of drops does not change during evaporation while their size decreases following the D2 law, the time-dependent volume-based drop-diameter distribution is expressed as a function of the initial drop-diameter distribution. This time-dependent distribution is found to depend on the local initial volume-based drop-diameter distribution as well as on the initial spatial liquid volume-fraction distribution. This model allows one to determine the timedependent evaporated mass ratio, the evaporation rate and the evaporation time of the groups of drops either confined in a local region or distributed over the entire spray cross section. As an illustration, it is applied on a real spray. Measurements were performed with a laser-diffraction technique and were analyzed to report local spray characteristics, i.e., local drop-diameter distribution and local liquid concentration. The local spray characteristics are transformed into a synthetic volume-based drop-diameter distribution that describes the spray over the entire cross section and that is used as the initial condition in the evaporation model.


Articles with similar content:

AN ALTERNATIVE METHODOLOGY FOR COMPUTING THE TEMPERATURE RISE OF AN ELECTRONIC DEVICE INSIDE A DIRECT AIR-COOLED ELECTRONIC CABINET
International Heat Transfer Conference 9, Vol.2, 1990, issue
T. Nicoletta, D. Newport , S. Witzman
A STUDY OF MIST COOLING −THERMAL BEHAVIORS OF LIQUID FILMS FORMED FROM MIST DROPS ON A HEATED SURFACE AT HIGH TEMPERATURES AND HIGH HEAT FLUXES−
International Heat Transfer Conference 4, Vol.26, 1970, issue
Saburo Toda, Hideo Uchida
HEAT TRANSFER DISTRIBUTION DUE TO ARRAYS OF LIQUID SPRAYS IMPINGING ON A CYLINDRICAL SURFACE
International Heat Transfer Conference 9, Vol.3, 1990, issue
D. T. Hughes, C. J. Davenport, A. H. Hobbis
RECOVERING THERMAL CONTACT CONDUCTANCES IN THREE–DIMENSIONAL LAYERED MATERIALS VIA RECIPROCITY FUNCTIONAL ANALYSIS AND TSVD REGULARIZATION TECHNIQUE
3rd Thermal and Fluids Engineering Conference (TFEC), Vol.5, 2018, issue
Camila R. de Lacerda, Marcelo Jose Colaco
STUDY OP LIQUID ENTRAINMENT IN GAS-LIQUID CONTACTORS AND VAPOUR GENERATORS
International Heat Transfer Conference 8, Vol.5, 1986, issue
Jacob Thomas, R. K. Mittal, J. P. Gupta