An Efficient Wet Scrubber to Remove Micron and Submicron Particles from Exhaust Gas

Zheng, Zhifeng; Zhu, Jiahua; Xia, Siqing; Zeng, Qun

doi:10.1252/jcej.17we167

Cited by 6 publications

(3 citation statements)

References 27 publications

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“…8(b) is the picture of the experimental system. 8,9 First a compressor with a silica gel drier and lyophilizer in sequence are used to provide clean gas for the system. A part of clean gas mixes with water vapor, which is generated by the vapor generator and then the mixed gas is heated by a heater, thus it can obtain the gas to be at a certain temperature and humidity.…”

Section: Methodsmentioning

confidence: 99%

“…1. [7][8][9] It is formed by numerous vertically down-owing waste water lms along numbers of triangularly congured ropes, which are installed in the middle of holes through a perforated distributor. The continuous and smooth wastewater lms, providing huge specic surface area, act as independent trap each to remove PM2.5 suspending in the exhaust gas owing perpendicularly across it.…”

Section: Introductionmentioning

confidence: 99%

“…The removal efficiency of PM2.5 is very important for evaluating the performance of a GLCA, and only when the mechanism of PM2.5 removal is known, and then by increasing the effect of main mechanism, the removal efficiency can be increased effectively. Zheng's work [7][8][9] has developed a suitable method for the design of the GLCA and a complex model to calculate the removal efficiency, while the research about how DP and TP work and the main removal mechanism in a GLCA are still not clear. The purpose of this paper is to study the trajectory of PM2.5 with DP and TP across the water lms in a GLCA to know how DP and TP work and the main removal mechanism by analysing the trajectory of PM2.5 across the wastewater lms, which determines the migration and ultimate fate of PM2.5 (ref.…”

Section: Introductionmentioning

confidence: 99%

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Trajectory of fine particles removal with diffusiophoresis and thermophoresis in a gas–liquid cross-flow array

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Trajectory of fine particles removal with diffusiophoresis and thermophoresis in a gas–liquid cross-flow array

et al. 2019

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Non-Newtonian fluid flow over a rotating elliptic cylinder in laminar flow regime

Kumar

Sahu

2022

European Journal of Mechanics - B/Fluids

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Numerical investigation of effect of surface pattern and rotation on power-law fluid flow and heat transfer around a cylinder in laminar flow regime

Routa,

Balaji,

Sahu

2023

Physics of Fluids

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We have studied the effect of surface topography, fluid behavior, and rotation on fluid flow and heat transfer phenomena over a cylinder. In this study, we have incorporated a sinusoidal surface topography to account for the impact of surface patterns and a power-law model to include fluid behavior. The governing equations are solved numerically for a range of pattern frequency (ω=5 and 11), pattern amplitude (δ=0.01 and 0.1), power-law index (0.4≤n≤1.6), Prandtl number (1≤Pr≤100), rotational speed (0.5≤α≤2), and Reynolds number (5≤Re≤40). In particular, the study aims to determine the degree to which various macroscopic parameters, such as the drag and lift coefficients, the average Nusselt number in relation to the Reynolds number, the Prandtl number, the rotating speed, and the power-law index, vary. In this range of Reynolds number, the flow around a circular cylinder is steady, with two symmetric vortices in the rear side. The sliding mesh method is used to deal with dynamic interface between solid and fluid. The streamlines are drawn to visualize the flow field around the patterned cylinder. For a non-rotating patterned cylinder, small recirculation zones are observed over the trough, which are absent in circular cylinders. The size of these recirculation regions increases on increase in Reynolds number and power-law index. On adding rotation to the cylinder, these recirculation zones move away from the cylinder and appear over the crest. On increasing the rotating speed of the cylinder, the frontal vortices disappear. The enveloping vortex gets larger with increase in rotating speed and power-law index. The size of the rear detached vortex increases with power-law index and Reynolds number and decreases with rotating speed. It is observed that the results are contrasted with the previous studies on smooth circular cylinder. The drag force acting on the patterned cylinder is seen to be reduced. Compared to a circular cylinder, a significant reduction in drag can be achieved by choosing suitable value of pattern frequency (ω) and amplitude (δ). Overall, there is a decrease in the amount of drag reduction as the Reynolds number increases. The behavior of the fluid has a considerable influence on the reduction of drag. It has been observed that shear-thickening fluid significantly contributes to the enhancement of drag reduction. For a higher value of pattern frequency and amplitude (ω=11,δ=0.1), the drag force reduces significantly for Newtonian and shear-thickening fluids at higher rotating speed (α=2). Also, the pattern frequency and amplitude substantially impact the average Nusselt number. On increase in pattern frequency and amplitude, a progressive decrease in the average Nusselt number is observed. Compared to shear-thinning and Newtonian fluid, shear-thickening fluid exhibits a greater reduction in average Nusselt number. One correlation is provided at the end to show the relationship between the average Nusselt number, the Prandtl number, the Reynolds number, the rotating speed, and the power-law index.

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An Efficient Wet Scrubber to Remove Micron and Submicron Particles from Exhaust Gas

Cited by 6 publications

References 27 publications

Trajectory of fine particles removal with diffusiophoresis and thermophoresis in a gas–liquid cross-flow array

Trajectory of fine particles removal with diffusiophoresis and thermophoresis in a gas–liquid cross-flow array

Non-Newtonian fluid flow over a rotating elliptic cylinder in laminar flow regime

Numerical investigation of effect of surface pattern and rotation on power-law fluid flow and heat transfer around a cylinder in laminar flow regime

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