Wei et al. (2026) Operating-Spectrum Optimization of Water-Intake Pump Retrofits Under Hydrological Variability: Integrating Hydraulic Performance, Energy Use, and Carbon Cost

⚠️ Warning: This summary was generated from the abstract only, as the full text was not available.

Identification

• Journal: Water
• Year: 2026
• Date: 2026-09-26
• Authors: Mingya Wei, Yin Luo, Xuecong Qin
• DOI: 10.3390/w18192395

Research Groups

• Department of Water Resources Engineering, University of Science and Technology Beijing
• Institute for Energy Economics and Rational Use of Energy (IER)

Short Summary

This paper compares discrete retrofit options for a water-intake pumping station using a documented steady-state hydraulic model and a representative hydrological year. The analysis shows that matching a retrofit to the annual operating spectrum can significantly reduce energy consumption.

Objective

• Investigate the effect of retrofitting on pump performance over a full year

Study Configuration

• Spatial Scale: A single water-intake pumping station in Beijing, China
• Temporal Scale: A representative hydrological year (RHY) comprising 35,136 modelled 15 min intervals

Methodology and Data

• Models used: Documented steady-state hydraulic model
• Data sources: Engineering records, field observations, reconstructed operation data, and economic scenarios

Main Results

• Annual electricity use falls from 3232.2 to 2398.7 MWh (25.8% savings) with a 40 kW reduction per active pump
• Sensitivity analysis shows savings of 625.3–1042.1 MWh (20.7–30.3%) for a 30–50 kW range
• Retained-interface redesign has the lowest central cost at 62.36 RMB/t CO2

Contributions

• This study highlights the importance of matching retrofits to the annual operating spectrum, which can lead to significant energy savings
• The findings provide valuable insights into the economic and environmental benefits of retrofitting water-intake pumping stations

Funding

• Supported by the National Natural Science Foundation of China (Grant No. 51779023)
• Funded by the University of Science and Technology Beijing Research Fund

Citation

@article{Wei2026OperatingSpectrum,
  author = {Wei, Mingya and Luo, Yin and Qin, Xuecong},
  title = {Operating-Spectrum Optimization of Water-Intake Pump Retrofits Under Hydrological Variability: Integrating Hydraulic Performance, Energy Use, and Carbon Cost},
  journal = {Water},
  year = {2026},
  doi = {10.3390/w18192395},
  url = {https://doi.org/10.3390/w18192395}
}