Simulation of energy recovery on water utility networks by a micro-turbine with counter-rotating runners.

28th IAHR symposium on Hydraulic Machinery and Systems

Andolfatto, L.^1 ; Vagnoni, E.^1 ; Hasmatuchi, V.^2 ; Münch-Alligné, C.^2 ; Avellan, F.^1

École Polytechnique Fédérate de Lausanne, Laboratory for Hydraulic Machines, Avenue de Cour 33 bis, Lausanne

1007, Switzerland^1

University of Applied Sciences Valais, Route du Rawyl 47, Sion

1950, Switzerland^2

关键词: Counter rotating runner;    Economically viable;    Energy dissipation devices;    Energy recovery;    Hydropower potential;    Installation site;    Recovered energy;    Water consumption;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/49/10/102012/pdf
DOI  :  10.1088/1755-1315/49/10/102012

来源: IOP

【 摘 要 】

Wherever relief valves and other energy dissipation devices are installed to limit the pressure, water utility networks provide unexploited hydropower potentials. This is mainly due to a lack of economically viable technologies for energy recovery in the pico and micro hydropower range below 100 kW. Micro-turbine with counter-rotating runners proved suitable to harvest these potentials with limited investments and almost no environmental impact. An appropriate command strategy must therefore be applied to maximize the recovered energy. This paper deals with the construction of a Virtual Energy Recovery Station (VERS) model to simulate the energy recovery on a given installation site. It includes models of the turbine, of the water consumption and it allows to implement various command strategies. The VERS can serve various purposes. The fine tuning of the command algorithm for a specific installation site is demonstrated in the paper.