scholarly journals Reaction front development from ignition spots in n-heptane/air mixtures: Low-temperature chemistry effects induced by ultrafine water droplet evaporation

2021 ◽  
Vol 33 (8) ◽  
pp. 083312
Author(s):  
Zhou Yu ◽  
Huangwei Zhang
Keyword(s):  
Low Temperature ◽  
Water Droplet ◽  
Reaction Front ◽  
Droplet Evaporation ◽  
Low Temperature Chemistry

scholarly journals Study of water droplet evaporation in a mini-channel with gas flow

2016 ◽  
Vol 92 ◽  
pp. 01002
Author(s):  
Evgeniy Orlik ◽  
Ekaterina Isachenko
Keyword(s):  
Water Droplet ◽  
Gas Flow ◽  
Droplet Evaporation

Dynamics of inner bubble during water droplet evaporation on conical micro-pillars surfaces

2022 ◽  
Vol 131 ◽  
pp. 105841
Author(s):  
Linsong Gao ◽  
Jizu Lyu ◽  
Zhifu Zhou ◽  
Yang Li ◽  
Dongdong Gao ◽  
...  
Keyword(s):  
Water Droplet ◽  
Droplet Evaporation ◽  
Micro Pillars

Assessment of Water Droplet Evaporation Mechanisms on Hydrophobic and Superhydrophobic Substrates

Langmuir ◽  
2013 ◽  
Vol 29 (51) ◽  
pp. 15831-15841 ◽  
Author(s):  
Zhenhai Pan ◽  
Susmita Dash ◽  
Justin A. Weibel ◽  
Suresh V. Garimella
Keyword(s):  
Water Droplet ◽  
Droplet Evaporation

Low temperature chemistry (T < 1000 K)

2019 ◽  
pp. 125-144
Author(s):  
J. F. Griffiths ◽  
J. A. Barnard
Keyword(s):  
Low Temperature ◽  
Low Temperature Chemistry

Low-temperature chemistry in n-heptane/air premixed turbulent flames

2018 ◽  
Vol 196 ◽  
pp. 71-84 ◽  
Author(s):  
Bruno Savard ◽  
Haiou Wang ◽  
Andrzej Teodorczyk ◽  
Evatt R. Hawkes
Keyword(s):  
Low Temperature ◽  
Turbulent Flames ◽  
Premixed Turbulent Flames ◽  
Low Temperature Chemistry

Enhanced Evaporation of Microscale Droplets With an Infrared Laser

2016 ◽  
Vol 139 (1) ◽  
Author(s):  
Luis A. Ferraz-Albani ◽  
Alberto Baldelli ◽  
Chrissy J. Knapp ◽  
Wolfgang Jäger ◽  
Reinhard Vehring ◽  
...  
Keyword(s):  
Water Droplet ◽  
Droplet Evaporation ◽  
Radiant Flux ◽  
Droplet Temperature ◽  
Ambient Conditions ◽  
Drying Time ◽  
Proposed Model ◽  
Environment Temperature ◽  
Order Of Magnitude ◽  
Surface Area Change

Enhancement of water droplet evaporation by added infrared radiation was modeled and studied experimentally in a vertical laminar flow channel. Experiments were conducted on droplets with nominal initial diameters of 50 μm in air with relative humidities ranging from 0% to 90% RH. A 2800 nm laser was used with radiant flux densities as high as 4 × 105 W/m2. Droplet size as a function of time was measured by a shadowgraph technique. The model assumed quasi-steady behavior, a low Biot number liquid phase, and constant gas–vapor phase material properties, while the experimental results were required for model validation and calibration. For radiant flux densities less than 104 W/m2, droplet evaporation rates remained essentially constant over their full evaporation, but at rates up to 10% higher than for the no radiation case. At higher radiant flux density, the surface-area change with time became progressively more nonlinear, indicating that the radiation had diminished effects on evaporation as the size of the droplets decreased. The drying time for a 50 μm water droplet was an order of magnitude faster when comparing the 106 W/m2 case to the no radiation case. The model was used to estimate the droplet temperature. Between 104 and 5 × 105 W/m2, the droplet temperature changed from being below to above the environment temperature. Thus, the direction of conduction between the droplet and the environment also changed. The proposed model was able to predict the changing evaporation rates for droplets exposed to radiation for ambient conditions varying from dry air to 90% relative humidity.

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