@Article{fdmp.2023.045541,
AUTHOR = {Xiao Sun, Jiangbo Tong, Yuliang Zhang, Haibing Cai, Wen Zhou, Xiaoqi Jia, Litao Ou},
TITLE = {Experimental Analysis of Radial Centrifugal Pump Shutdown},
JOURNAL = {Fluid Dynamics \& Materials Processing},
VOLUME = {20},
YEAR = {2024},
NUMBER = {4},
PAGES = {725--737},
URL = {http://www.techscience.com/fdmp/v20n4/55963},
ISSN = {1555-2578},
ABSTRACT = {Centrifugal pumps are widely used in the metallurgy, coal, and building sectors. In order to study the hydraulic characteristics of a closed impeller centrifugal pump during its shutdown in the so-called power frequency and frequency conversion modes, experiments were carried to determine the characteristic evolution of parameters such as speed, inlet and outlet pressure, head, flow rate and shaft power. A quasi-steady-state method was also used to further investigate these transient behaviors. The results show that, compared to the power frequency input, the performance parameter curves for the frequency conversion input are less volatile and smoother. The characteristic time is longer and the response to shutdown is slower. The quasi-steady-state theoretical head-flow curves match the experimental head-flow curves more closely at low flow rates when the frequency conversion input is considered. Moreover, in this case, the similarity law predicts the hydraulic performance more accurately.},
DOI = {10.32604/fdmp.2023.045541}
}