A Comparison of Prediction Methods for Design of Pump as Turbine for Small Hydro Plant: Implemented Plant

2nd International Conference on Green Energy Technology

能源学;生态环境科学

Naeimi, Hossein^1 ; Shahabi, Mina Nayebi^1 ; Mohammadi, Sohrab^1

Water and Wastewater Co., Urmia, Iran^1

关键词: Best efficiency point;    Electricity generation;    Electricity-generation system;    Energy pay back time;    Energy payback time (EPBT);    Micro hydropower plants;    Pressure-reducing valve;    Pump as turbine (PAT);   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/83/1/012006/pdf
DOI  :  10.1088/1755-1315/83/1/012006

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In developing countries, small and micro hydropower plants are very effective source for electricity generation with energy pay-back time (EPBT) less than other conventional electricity generation systems. Using pump as turbine (PAT) is an attractive, significant and cost-effective alternative. Pump manufacturers do not normally provide the characteristic curves of their pumps working as turbines. Therefore, choosing an appropriate Pump to work as a turbine is essential in implementing the small-hydro plants. In this paper, in order to find the best fitting method to choose a PAT, the results of a small-hydro plant implemented on the by-pass of a Pressure Reducing Valve (PRV) in Urmia city in Iran are presented. Some of the prediction methods of Best Efficiency Point of PATs are derived. Then, the results of implemented project have been compared to the prediction methods results and the deviation of from measured data were considered and discussed and the best method that predicts the specifications of PAT more accurately determined. Finally, the energy pay-back time for the plant is calculated.