TY - JOUR
T1 - Separation efficiency theoretical model of swirl-vane separator based on bidirectional vortex
AU - Ouyang, Shuo
AU - Xiong, Zhenqin
AU - Zhao, Jiyun
AU - Kang, Ruiqi
PY - 2022/6/1
Y1 - 2022/6/1
N2 - Swirl vane separator is a vital component to separate liquid water from gas to provide high quality steam to turbines in liquid water reactors. The gas rotating flow in the riser of a swirl vane separator is a bidirectional vortex. Its tangential velocity is similar with Rankine vortex. Its axial velocity is bidirectional. The gas bidirectional vortex is solved by constructing a Bragg-Hawthorne equation for the stream function. The gas flow velocity predicted by new method agrees quite well with CFD. The maximum velocity differences in axial direction are 6.2%. Based on this model, the droplet trajectory is obtained and a new separation efficiency model has been developed. The average difference between experiment results and the predicted separation efficiency is reduced from 14.7% to 3.1%. Moreover, parametric analysis using new model has been carried out to discuss the effect of inlet velocity, droplet diameter, swirl vane angle and hub diameter.
AB - Swirl vane separator is a vital component to separate liquid water from gas to provide high quality steam to turbines in liquid water reactors. The gas rotating flow in the riser of a swirl vane separator is a bidirectional vortex. Its tangential velocity is similar with Rankine vortex. Its axial velocity is bidirectional. The gas bidirectional vortex is solved by constructing a Bragg-Hawthorne equation for the stream function. The gas flow velocity predicted by new method agrees quite well with CFD. The maximum velocity differences in axial direction are 6.2%. Based on this model, the droplet trajectory is obtained and a new separation efficiency model has been developed. The average difference between experiment results and the predicted separation efficiency is reduced from 14.7% to 3.1%. Moreover, parametric analysis using new model has been carried out to discuss the effect of inlet velocity, droplet diameter, swirl vane angle and hub diameter.
KW - Bragg-Hawthorne equation
KW - Rotating bidirectional flow field
KW - Separation efficiency
KW - Swirl vane separator
KW - Theoretical analysis model
UR - http://www.scopus.com/inward/record.url?scp=85124244506&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85124244506&origin=recordpage
U2 - 10.1016/j.anucene.2022.108984
DO - 10.1016/j.anucene.2022.108984
M3 - RGC 21 - Publication in refereed journal
SN - 0306-4549
VL - 170
JO - Annals of Nuclear Energy
JF - Annals of Nuclear Energy
M1 - 108984
ER -