Effects of underflow diameter and vortex finder length on the performance of a newly designed filtering hydrocyclone

Silva, Nathacha K.G.; Silva, Danylo O.; Vieira, Luiz Gustavo Martins; Barrozo, M. A. S.

doi:10.1016/j.powtec.2015.08.036

Cited by 66 publications

(33 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Cyclone separators utilize the inertia difference of dissimilar compounds in a mixed flow to separate the compounds through high-speed rotations. 29 They are widely utilized in coal mines, oil fields, and in chemical and environmental applications. 30,31 Separators can be divided into reverse flow and axial-flow separators according to the direction of the fluid flowing in the separator.…”

Section: Dimensions Of the Axial Vane-type Separatormentioning

confidence: 99%

Performance analysis and optimization design of an axial-flow vane separator for supercritical CO₂ (sCO₂ )-water mixtures from geothermal reservoirs

et al. 2019

View full text Add to dashboard Cite

Summary Supercritical CO2 (sCO2) has been proven to be a promising working fluid for geothermal heat mining, and the produced hot sCO2 can be directly used for power generation. However, the sCO2 produced from a brine‐based reservoir may contain a certain amount of water, preventing direct power‐cycle utilization. In this paper, an axial vane separator was designed to address the separation problem of sCO2 and water produced from geothermal reservoirs. First, the influences of operational and structural parameters on the separation performance were analyzed through numerical simulations. Five factors were selected to develop separation performance regression models by the response‐surface method (RSM). Finally, geometrical parameter optimization was applied to these RSM models. The results show that the guide vane area and the exhaust inlet are the main locations impacting the system pressure drop. The separation performance can be affected by many factors, including the guide blade outlet angle, number of vanes, hub diameter, length of the vortex tube, droplet size, and inlet velocity. The water‐droplet size and the number of vanes are the most critical factors affecting the separation efficiency. The inlet velocity, the number of vanes, and the hub diameter have a larger influence on the pressure drop of the separator. The optimization results indicate that the separation efficiency can reach 100% under certain operating conditions with a pressure drop no greater than 100 kPa.

show abstract

Section: Dimensions Of the Axial Vane-type Separatormentioning

confidence: 99%

Performance analysis and optimization design of an axial-flow vane separator for supercritical CO₂ (sCO₂ )-water mixtures from geothermal reservoirs

et al. 2019

View full text Add to dashboard Cite

show abstract

“…When the telescopic deformation dynamics of oil droplets subjected to the pulse electric field is determined, the intensity and frequency of the optimal demulsification pulse electric field are associated with the system parameters of the emulsified oil, such as oil viscosity, interfacial tension, relative dielectric constant of the medium, and grain size of the droplet [18].…”

Section: Theories Pulse Electric Field Demulsificationmentioning

confidence: 99%

Dehydration of emulsified lubricating oil by three fields: swirl centrifugal field, pulse electric field and vacuum temperature field

et al. 2016

View full text Add to dashboard Cite

Lubricating oil can be easily polluted by water and emulsified, thereby negatively affecting the lubricating property. Meanwhile, wasted lubricating oil, a complex composition, presents high water content and exists with emulsion. A single technological method is difficult to be satisfied for efficient demulsification and dehydration of emulsified lubricating oil. In this paper, it is proposed that the swirl centrifugal field made by hydrocyclone, pulse electric field, and vacuum temperature field are coupled to achieve the oil's dehydration. Based on the theories, it is reasonable to use three fields for oil's demulsification. In the experiment of three-field dehydrating, the demulsification device is divided into two parts, namely, the coupled unit of pulse electric field and hydrocyclone, and the vacuum heating unit. The structure and size of the device were optimized through numerical simulation. With two modes of single field and three-field, the experiments were carried out. Results indicated that the use of three-field was more energy efficient and faster compared with the traditional vacuum heating method only.

show abstract

“…Tang et al [21][22][23][24] studied the influence of a vortex finder's structural parameters on a hydrocyclone's separation efficiency using a multiple regression model. Their results suggested that a vortex finder's diameter was the most dominant parameter affecting separation efficiency, followed by the insertion depth and wall thickness of the vortex finder.…”

Section: Introductionmentioning

confidence: 99%

Short‐Circuit Flow in Hydrocyclones with Arc‐Shaped Vortex Finders

et al. 2018

View full text Add to dashboard Cite

Several new arc-shaped vortex finder structures were developed to restrain the circulation flow and reduce short-circuit flow. These problems were investigated by conducting laboratory experiments and using a computational fluid dynamics numerical simulation method. To verify the accuracy of the numerical simulation, a type A vortex finder was employed to perform a particle image velocimetry test under identical working conditions. Then, these new structures were compared with a type O vortex finder to reveal the differences in pressure field, velocity field, and separation performance. The arc-shaped vortex finder was able to restrain the circulation flow and reduce the maximum pressure drop at the outer wall of the vortex finder.

show abstract

Effects of underflow diameter and vortex finder length on the performance of a newly designed filtering hydrocyclone

Cited by 66 publications

References 27 publications

Performance analysis and optimization design of an axial-flow vane separator for supercritical CO₂ (sCO₂ )-water mixtures from geothermal reservoirs

Performance analysis and optimization design of an axial-flow vane separator for supercritical CO₂ (sCO₂ )-water mixtures from geothermal reservoirs

Dehydration of emulsified lubricating oil by three fields: swirl centrifugal field, pulse electric field and vacuum temperature field

Short‐Circuit Flow in Hydrocyclones with Arc‐Shaped Vortex Finders

Contact Info

Product

Resources

About

Effects of underflow diameter and vortex finder length on the performance of a newly designed filtering hydrocyclone

Cited by 66 publications

References 27 publications

Performance analysis and optimization design of an axial-flow vane separator for supercritical CO2 (sCO2 )-water mixtures from geothermal reservoirs

Performance analysis and optimization design of an axial-flow vane separator for supercritical CO2 (sCO2 )-water mixtures from geothermal reservoirs

Dehydration of emulsified lubricating oil by three fields: swirl centrifugal field, pulse electric field and vacuum temperature field

Short‐Circuit Flow in Hydrocyclones with Arc‐Shaped Vortex Finders

Contact Info

Product

Resources

About

Performance analysis and optimization design of an axial-flow vane separator for supercritical CO₂ (sCO₂ )-water mixtures from geothermal reservoirs

Performance analysis and optimization design of an axial-flow vane separator for supercritical CO₂ (sCO₂ )-water mixtures from geothermal reservoirs