Evaporation of a bicomponent droplet during depressurization

Liu, Lu; Liu, Yan; Mi, Menglong; Wang, Zhi; Jiang, Lulin

doi:10.1016/j.ijheatmasstransfer.2016.05.007

Cited by 20 publications

(7 citation statements)

References 25 publications

(43 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For a bi-component droplet, the evaporation process is characterized by the model developed by Abramzon and Sirignano (1989). Good consistency was observed between the simulation results and experimental data for the evaporation of different bi-component droplets (Liu, Liu, Mi, Wang, & Jiang, 2016;Sazhin, 2006), which validates the reliability of the model.…”

Section: Droplet Evaporation Modelsupporting

confidence: 57%

Numerical simulation on flow and evaporation characteristics of desulfurization wastewater in a bypass flue

Zhang

et al. 2020

Engineering Applications of Computational Fluid Mechanics

View full text Add to dashboard Cite

Owing to the oversimplification of the evaporation model, existing numerical analysis cannot accurately characterize the evaporation characteristics, which has limited its significance for engineering. Therefore, by user-defined programming, a droplet evaporation model in line with the properties of desulfurization wastewater was implemented in numerical simulation. The effects of guiding measures, nozzle arrangement, nozzle layer, flue gas temperature, moisture and droplet diameter on the droplet evaporation in a bypass flue were explored. The numerical results show that the fluctuation of evaporativity due to moisture can be neglected. The uniformity of the flow field with guiding measures is good and the phenomenon of droplets impinging on the wall surface can be prevented. The droplet collision probability without guiding measures may be nearly 60 times higher than that with guiding measures. A reasonable nozzle arrangement increases the droplet evaporation rate and reduces the probability of droplets colliding with the wall surface. An increased number of nozzle layers enhances the droplet evaporation rate and the average temperature in the flue; by estimation, the average temperature in the flue with three nozzle layers is 10.7 K higher than that for two nozzle layers, and 15.8 K higher than that for one nozzle layer. In the condition of higher temperature and smaller diameter, droplets evaporate more rapidly. These research results can provide a reliable reference for engineering practice.

show abstract

Section: Droplet Evaporation Modelsupporting

confidence: 57%

Numerical simulation on flow and evaporation characteristics of desulfurization wastewater in a bypass flue

Zhang

et al. 2020

Engineering Applications of Computational Fluid Mechanics

View full text Add to dashboard Cite

show abstract

“…Droplet diameter was recognized as a significant factor affecting droplet lifetime and temperature. , Figure a shows the change of the normalized squared droplet diameter with the normalization time when the initial droplet diameters were 1.40, 1.20, and 1.07 mm. The normalized diameter of the 1.4 mm droplet was larger at the end of the IEP.…”

Section: Results and Discussionmentioning

confidence: 99%

Evaporation Behavior of a Single Isobutane Droplet in the Effluent Spray Process of Isobutane Alkylation Catalyzed by Composite Ionic Liquid

Han,

Zhang,

Meng

et al. 2024

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

Isobutane alkylation catalyzed by a composite ionic liquid is a new technology for the production of clean gasoline blending components. In this process, efficient effluent cooling plays a crucial role in energy conservation. A new cooling application by effluent (mainly isobutane) evaporation was proposed for this target, in which the effluent was released into a low-pressure environment to enhance and control the evaporation of isobutane. The transient temperature of isobutane droplets was measured by suspending them on the tip of a thermocouple while a high-speed camera recorded the evaporation process. The effects of final pressures, different initial droplet diameters, initial droplet temperatures, and gas concentrations of isobutane on evaporation behavior and droplet temperature were investigated. The results demonstrated that isobutane droplets underwent intense evaporation and stable evaporation phases. The evaporation rate constant (k 0 ) exhibited a linear increase with decreasing final pressure and increasing initial droplet diameter. With the decrease in k 0 , the droplet evaporated in three states: expansion and breaking, only expanding but not disintegrating, and surface evaporation. The evaporation rate constant (k 1 ) during the stable evaporation phase was influenced by the initial droplet diameter and the concentration gradient between the droplet and the environment due to the concentration difference around the droplet. The lower the final pressure, the lower the droplet temperature in the stable evaporation stage, and the droplet diameter and initial temperature did not appear to affect the droplet equilibrium temperature. Adjusting the final pressure allows for precise control of the temperature of the droplets during the stabilization phase of evaporation.

show abstract

“…Where species diffusion was taken into account, this was mainly performed based on the numerical solution to Equation (35) (e.g. [67,68,69]). In contrast to this approach, in a series of our papers, the results of which are summarised in [2], a new approach to this problem based on the analytical solution to (35), subject to boundary conditions (36) and (38), was suggested.…”

Section: Hydrodynamic Models (Multi-component Droplet Heating and Evamentioning

confidence: 99%

Droplets and Sprays

Basu¹,

Ágarwal²,

Mukhopadhyay³

et al. 2018

Energy, Environment, and Sustainability

View full text Add to dashboard Cite

Evaporation of a bicomponent droplet during depressurization

Cited by 20 publications

References 25 publications

Numerical simulation on flow and evaporation characteristics of desulfurization wastewater in a bypass flue

Numerical simulation on flow and evaporation characteristics of desulfurization wastewater in a bypass flue

Evaporation Behavior of a Single Isobutane Droplet in the Effluent Spray Process of Isobutane Alkylation Catalyzed by Composite Ionic Liquid

Droplets and Sprays

Contact Info

Product

Resources

About