Volume 4, Number 2 (2021)
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Home > Journals > SCIREA Journal of Hydraulic Engineering > Archive > Paper Information

Comparative study on flow pattern character of pumping station forebay before and after reconstruction and simulation analysis on energy conservation and consumption reduction

Volume 4, Issue 2, April 2021    |    PP. 21-39    |PDF (1580 K)|    Pub. Date: August 29, 2021
13 Downloads     161 Views  

Author(s)
Gong Chengyong, School of Energy and Power Engineering, Lanzhou University of Technology, China.
Zeng Yongliang, School of Energy and Power Engineering, Lanzhou University of Technology, China.
Li Rennian, School of Energy and Power Engineering, Lanzhou University of Technology, China.
Ma Xijin, School of Energy and Power Engineering, Lanzhou University of Technology, China.

Abstract
To explore the influence of the shape optimization of the forebay on energy conservation and consumption reduction of the pumping station, and analyze the mechanism of energy conservation and consumption reduction of the reconstruction of the pumping station forebay, the third pumping station forebay of Yanhuanding Water Station Water Hub was taken as the research object to compare and analyze the flow pattern character before and after reconstruction. The standard k-ε turbulence model equation and the segregated solver were used to solve the discrete equations, and then the flow pattern character of the pumping station forebay before and after transformation was numerically simulated. The results indicated that the changes in the shape and size of the pumping station forebay had an impact on the loss of energy consumption. There was less eddy in the front inflow forebay, and the uniformity of the axial velocity distribution was 50.5%, which was better than that of the lateral inlet (46.9%). The energy dissipation rate in the forebay tended to be stable with the running time, and the energy consumption of the forebay got close to 492.81W/m2, which was lower than that of the lateral inflow forebay (608.13 W/m2). The energy-saving effect of the front inflow forebay was better than that of the lateral inflow forebay, and the flow pattern of the front inflow forebay was better than that of the lateral inflow forebay.

Keywords
Pumping station forebay, Flow pattern character, Uniformity of velocity ,Energy conservation and consumption reduction, Numerical simulation

Cite this paper
Gong Chengyong, Zeng Yongliang, Li Rennian, Ma Xijin, Comparative study on flow pattern character of pumping station forebay before and after reconstruction and simulation analysis on energy conservation and consumption reduction, SCIREA Journal of Hydraulic Engineering. Vol. 4 , No. 2 , 2021 , pp. 21 - 39 .

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