Experimental and numerical study of heat and mass transfer between high temperature supersonic gas flow and liquid water in a cylindrical duct

Yoo, Young-Lin; Han, Doo-Hee; Ahn, Sang-Hoon; Sung, Hong-Gye; Seo, Seonghyeon; Yang, Young-Rok; Jeon, Hye Won; Baek, Gookhyun

doi:10.1016/j.ijheatmasstransfer.2021.122214

Cited by 2 publications

(1 citation statement)

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“…To prediction of column dynamics requires a set of coupled nonlinear partial differential equations based on the following fundamental relations: transport phenomena equations (mass and heat), [11,12] equilibrium isotherm equations, and boundary conditions and initial conditions [13] . Initially, the mass transfer is described by the linear driving force (LDF) model, [14,15] which assumes that the uptake rate of the species in the particle or pellet of the porous sorbent is proportional to the difference between the equilibrium surface concentration and the average adsorbed phase concentration [16,17] .…”

Section: Introductionmentioning

confidence: 99%

Heat and Mass Transfer of Water During Activated Carbon Adsorption

Tang,

Li,

Yao

2024

ChemistrySelect

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In order to investigate the dynamic process of the heat and mass transfer phenomenon of water vapor on activated carbon, a fixed‐column adsorption unit and two kinds of activated carbon were used as adsorbent for water vapor adsorption under the adsorption temperature 293.15 K, 303.15 K and 313.15 K, respectively. A coupled model was developed by mass and energy balance, mass transfer and simplified DO adsorption equilibrium equation. The effects of physical parameters on heat and mass transfer were theoretically investigated. Results show that the numerical model match well with the experimental data (R2>0.993). The axial diffusion coefficient (DL) increases from 1.226×10−6 m2 s−1 to 4.062×10−6 m2 s−1 for RAC and 1.425×10−6 m2 s−1 to 4.030×10−6 m2 s−1 for MAC, mass transfer coefficient (k) increases from 8.171 s−1 to 27.083 s−1 for RAC and 9.499 s−1 to 26.864 s−1 for MAC. Concurrently, the breakthrough time of adsorption water vapor gradually shorten from 1000 s to 780 s with temperature increasing from 293.15 K to 313.15 K. The effect of axial diffusion coefficient (DL) on mass transfer is not obvious. Furthermore, the influence of the mass transfer coefficient (k) on temperature variation rate surpasses that of the internal heat transfer coefficient (h).

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