Heat transfer and evaporation rates of small liquid droplets on heated horizontal surfaces

Crafton, Elyssa F.; Black, W. Z.

doi:10.1016/j.ijheatmasstransfer.2003.09.006

Cited by 127 publications

(85 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For an evaporating drop, one would guess naively that the surface area governs the evaporation rate; however for drops smaller than about a centimeter in a temperaturecontrolled environment, detailed experiments show that the rate is proportional to the drop radius R for both pinned (Deegan et al 2000b;Crafton & Black 2004;David et al 2007;Gelderblom et al 2011) and moving contact lines (Cachile et al 2002a,b;Poulard et al 2003;Shahidzadeh-Bonn et al 2006;Starov & Sefiane 2009). In fact, in the regime of slow evaporation considered here the evaporation is quasi-steady (Cazabat & Guéna 2010;Stauber et al 2015), hence evaporation rates are defined by the instantaneous drop shapes.…”

Section: Introductionmentioning

confidence: 99%

Evaporation of water: evaporation rate and collective effects

et al. 2016

View full text Add to dashboard Cite

General rightsThis document is made available in accordance with publisher policies. Please cite only the published version using the reference above. Full terms of use are available: http://www.bristol.ac.uk/pure/about/ebr-terms We study the evaporation rate from single drops as well as collections of drops on a solid substrate, both experimentally and theoretically. For a single isolated drops of water, in general the evaporative flux is limited by diffusion of water through the air, leading to an evaporation rate that is proportional to the linear dimension of the drop. Here we test the limitations of this scaling law for several small drops, and for very large drops. We find that both for simple arrangements of drops, as well as for complex drop size distributions found in sprays, cooperative effects between drops are significant. For large drops, we find that the onset of convection introduces a length scale of about 20 mm in radius, below which linear scaling is found. Above this length scale, the evaporation rate is proportional to the surface area.

show abstract

Section: Introductionmentioning

confidence: 99%

Evaporation of water: evaporation rate and collective effects

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Silicon oil, R113, ethanol Anodized glass Erbil (Erbil et al 2002) 2002 Exp. N-butanol, toluene, n-nonane PTFE Crafton (Crafton and Black 2004) 2004 Exp. Water, n-heptane Copper, aluminum Savino (Savino and Fico 2004) 2004 Exp.…”

Section: Introductionmentioning

confidence: 99%

Evaporation of Ethanol Drops on a Heated Substrate Under Microgravity Conditions

Brutin

Zhu

Rahli

et al. 2010

Microgravity Sci. Technol.

View full text Add to dashboard Cite

We present in this paper results obtained from a parabolic flight campaign regarding ethanol sessile drop evaporation under reduced gravity conditions. Drops are created using a syringe pump by means of injection through a PTFE (polytetrafluoroethylene) substrate. The drops are recorded using a video camera and an infrared camera to observe the thermal motion inside the drop and on the heating substrate. The experimental set-up presented in this paper enables the simultaneous visualization and access to the heat flux density that is transferred to the drop using a heat flux meter placed between the heating block and the PTFE substrate. We evidence original thermal spreading phenomena during the ethanol drop creation on a heated PTFE substrate. The drop exhibits specific behaviour which is discussed here. This work is performed in the frame of a French-Chinese collaboration (project IM-PACHT) for future experiments in a Chinese scientific satellite.

show abstract

“…Heating, evaporation and ignition of liquid condensed substances drops at contact with hot plate are strongly investigated [1][2][3][4][5][6]. Such interest can be explained by absence of information about main regularities of interconnected heat and mass transfer processes.…”

Section: Introductionmentioning

confidence: 99%

Mathematical modeling of heat and mass transfer processes at the ignition of a liquid condensed substance by an immersed hot particle

Glushkov

Кузнецов

Стрижак

2014

EPJ Web of Conferences

View full text Add to dashboard Cite

Abstract.A numerical investigation of heat and mass transfer processes at the heating of combustible liquid was carried out at the interaction of hot small-size steel particle with gasoline. Developed mathematical model considers at two-dimensional statement thermal conduction, thermal convection, transfer of energy by phase change (evaporation of liquid fuel and crystallization of particle material), partial immersion of hot particle in liquid fuel, forming of vapor gap between hot particle and liquid fuel, diffusion of fuel vapors in oxidizer, dependence of thermophysical characteristics of interactive substances on temperature. It was established that the highest rates of heat and mass transfer processes in a system "hot particle -gasoline -air" are possible at temperature of hot particle higher than melting temperature of it material due to the additional heat released at the crystallization of material.

show abstract

Heat transfer and evaporation rates of small liquid droplets on heated horizontal surfaces

Cited by 127 publications

References 14 publications

Evaporation of water: evaporation rate and collective effects

Evaporation of water: evaporation rate and collective effects

Evaporation of Ethanol Drops on a Heated Substrate Under Microgravity Conditions

Mathematical modeling of heat and mass transfer processes at the ignition of a liquid condensed substance by an immersed hot particle

Contact Info

Product

Resources

About