@Article{fdmp.2020.09669,
AUTHOR = {Qingyun Yan, You Li, Yuanhong Zhu, Kui Cheng, Xueli Huang, Cong Qi, Xuemin Ye},
TITLE = {CFD-Based Optimization of Hot Primary-Air Pipe Networks in Power Plant Milling Systems},
JOURNAL = {Fluid Dynamics \& Materials Processing},
VOLUME = {16},
YEAR = {2020},
NUMBER = {3},
PAGES = {623--636},
URL = {http://www.techscience.com/fdmp/v16n3/39255},
ISSN = {1555-2578},
ABSTRACT = {A hot primary-air pipe system is the bridge connecting an air-preheater
with a coal mill in power generation stations. The effective geometrical configuration of the pipe network greatly affects the air flow distribution and consequently
influences the safe and economic operation of milling systems in power stations.
In order to improve the properties of the air flow, in the present work the SIMPLEC method is used to simulate numerically the flow field for the original layout
of the system. As a result, the internal mechanisms influencing the uneven pressure drop in each branch are explored and three optimization schemes are proposed accordingly. The numerical results indicate that, for the original layout,
the local pressure drop of the tee section accounts for approximately 74% of
the total drop of the system, with other pressure drops depending on the specific
branch considered. It is shown that after optimization, a roughly balanced flow
resistance and flow rate can be obtained. Compared with the original layout,
the pressure drop relating to different branches is significantly reduced.},
DOI = {10.32604/fdmp.2020.09669}
}