Utilizing Water Turbines in Potable Water Systems

Gravity drinking water systems are a large, typically untapped source for electrical energy. Turbine-generator units can be incorporated into existing facilities or included in new water works and can range from small DC systems, on a domestic water supply pipe, to higher output units on a large city’s water supply. Costs for adding hydroelectric power generation to an existing water facility are relatively low due to the fact that the civil works, such as intakes and pipelines, are already in place.

When evaluating hydro turbine-generator units for a existing water system, the following must be considered:

bulletWill the turbine replace the existing pressure reducing valve(s) or will it run in parallel?
bulletThe proper turbine must be chosen to limit the pressure rise in the existing pipeline to a safe level.
bulletWill a reaction turbine be needed to maintain pipe pressure downstream of the turbine?
bulletAn impulse turbine could be suitable if, downstream of the turbine, system pressure is at atmosphere.
bulletProper materials must be used to maintain to potable water standards.
bulletDue to a wide range of heads and flows in water systems, the turbine type, design and size is critical to realize the maximum potential energy.

Cities using Dependable Turbines in Potable Water Systems

Year

Location Turbine

Head

Output

1985

City of Portland, Washington, USAFrancis

30 M

175

KW
Mount Tabor Hydroelectric Project
 

1986

Springville City, Utah, USATurgo

87 M

500

KW
Spring Creek Hydroelectric Project
 

1990

City of Tacoma, Washington, USATurgo

85 M

850

KW
Hood Street Hydroelectric Project
 

1991

Seoul, KoreaFrancis

44 M

500

KW
Kwang Cheon Hydroelectric Project
 

1998

Seoul, KoreaPropeller

20 M

200

KW
Puan Hydroelectric Project
 

1999

Monroe City, Utah, USAPelton

393 M

260

KW
 Monroe Hydroelectric Project    
      

2006

Daegu Metropolitan City, KoreaFrancis

38M

126

KW
 Gongsan Dam Hydroelectric Project    
      

2010

City of Kimberley, British Columbia, CanadaTurgo

35M

28

KW
 Mark Creek Hydroelectric Project    
      

2011

Monroe City, Utah, USAPelton

137M

37

KW
  Monroe Cold Spring Hydroelectric Project    
      

2013

Fisheries and Oceans Canada, Campbell River, CanadaPump Turbine

21M

40

KW
  Quinsam Hatchery Hydroelectric Project    
      

2015

INEO POLYNESIE, FRENCH POLYNESIAPelton

267.8

22.3

KW
 Aakapa Hydroelectric Project    
      

Dependable Turbines Ltd. (DTL) welcomes all inquiries.

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Phone (604) 576-3175 – Fax (604) 576-3183 – Email: sales@dtlhydro.com

 

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