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  4. Feasibility assessment of micro-hydropower for energy recovery in the water supply network of the city of Fribourg
 
conference paper

Feasibility assessment of micro-hydropower for energy recovery in the water supply network of the city of Fribourg

Almeida Samora, Irene  
•
Manso, Pedro
•
Franca, Mário J.  
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2016
Proc. of the 4th IAHR Europe Congress
4th IAHR Europe Congress: Sustainable hydraulics in the era of global change

In water supply systems there is potential for hydropower production at several scales, from small hydro to micro. The energy recovery within the urban water supply networks is a type of micro-hydro that may be useful for the control of excessive pressures. On the other hand, local decentralized production of electricity may have multiple uses, considering self-consumption at local grid level or storage. However, there is still a lack of technologies and specific solutions for such applications, since the flows are highly variable and the available heads are small and limited to service pressures. A scheme specially conceived for water supply networks making use of a micro turbine is proposed.Adequate positioning conditions are identified using a search algorithm which considers both the assessment of the energy production and sizing of the main equipment and works. Typical schemes are proposed where the installation of up to four turbines is possible within the same buried chamber created around an existing pipe. Preliminary results obtained for a network case study show that the implementation of the proposed energy recovery solution is feasible. The installation of a by-pass revealed to have a key role in the feasibility of each solution, demanding customized engineering judgment. Further testing of the search algorithm as well as a first in-situ implementation of the scheme may be foreseen in the near future.

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Type
conference paper
Author(s)
Almeida Samora, Irene  
Manso, Pedro
Franca, Mário J.  
Schleiss, Anton  
Date Issued

2016

Published in
Proc. of the 4th IAHR Europe Congress
ISBN of the book

978-1-138-02977-4

Start page

167

Note

[1094]

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
PL-LCH  
Event nameEvent placeEvent date
4th IAHR Europe Congress: Sustainable hydraulics in the era of global change

Liège, Belgium

July 27-29, 2016

Available on Infoscience
August 25, 2016
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/128893
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