1. Falkner H, Reeves D. Study on improving the energy efficiency of pumps.
2. Energy efficiency in pumps;Kaya;Energy Convers Manage,2008
3. Efficiency achievement in water supply systems—a review;Coelho;Renew Sustain Energy Rev,2014
4. Waide P, Brunner C. Energy-efficiency policy opportunities for electric motor-driven systems.
5. U.S. Department of Energy. Improving motor and drive system performance.