Siphon Quenches Drought
An age-old engineering concept—the siphon—enjoys new success in alleviating a severe water shortage at the Ketchikan Pulp Company's Ward Cove Pulp Mill. With major layoffs...

Siphoning Sludge
Floating siphon sludge collection systems, as part of a massive wastewater treatment expansion program, are helping Houston to grow. Amid the boom years of the early 1970s, the city had...

Siphon Penstock Installations at Hydroelectric Projects: A Survey of Design, Construction and Operating Experience
There can be advantages to using siphon penstocks at small hydro projects, particularly those constructed at existing dams. One problem, however, is a lack of documentation of siphon penstock...

Design of Siphon Penstocks for Low Head Hydros
Siphon penstocks have been designed and constructed at Jim Falls and Winter, Wisconsin at existing dams. Both hydropower projects are located on the Chippewa River. The design of these...

Case Study: Siphon Penstock Operations
Hydroelectric power plants utilizing siphon penstocks operating near Winter, Wisconsin and at Jim Falls, Wisconsin have met or exceeded expectations after fine tuning of the vacuum and...

Site, Owner Needs Impact Siphon Hydro Concepts

Athens Siphon and Outfall
More than 130 million gallons of untreated domestic and industrial wastewater are discharged each day into the sea near Athens. To mitigate this situation, the government of Greece is...

Air Regulated Siphons as Irrigation Canal Outlets
This paper investigates the possibility of using air regulated siphons as outlets from irrigation canals. Although a solution to a specific problem is sought, it is recognized that the...

Design and Performance of a Siphon Penstock
Siphons can be a cost effective alternative to more traditional means of conveying water to hydroelectric turbines. The City of Ann Arbor, Michigan selected a siphon as the most cost effective...

Siphon Penstock—An Economic Way to Develop Hydros
As part of the 48 MW Jim Falls Hydro Redevelopment Project by Northern States Power Company, a minimum flow powerhouse was constructed with a siphon penstock. The Minimum Flow Unit (MFU)...

Galt Energy's Inverted Siphon System
Galt Energy Systems' involvement with attempting to standardize the civil component began with studies at small remote sites in Northern Ontario. The system design evolved...

The PowerBarge Hydroelectric Plant
Following an account of the need for such an approach, the PowerBarge hydroelectric plant design concept is described as a fully floating system consisting of an Intake Barge, Siphon Penstock,...

New Syphon for Subcritical and Supercritical Flows
The scope of this study is to find solutions to the following problems: 1) the siphon should operate smoothly without any water spill; 2) the siphon priming should be automatic, if possible,...

Low-Head Air Regulated Siphons
Air-regulated siphons have significant advantages over blackwater siphons: (1) They discharge over a wide flow range with minimal change in upstream water level; and (2) they are self-regulating...

Air Entrainment in Surface Rollers
Studies indicate that surface rollers are well suited as hydraulic aeration devices for water quality enhancement. An important indicator concerning the efficiency of such devices is the...

Vortex Suppression in Stilling Pond Overflow
Four siphons of square section with sides 24 mm (0.95 in.), 38 mm (1.5 in.), 50 mm (1.2 in.) and 62 mm (2.4 in.) were tested in a model stilling pond. The dimensionless critical submergence...

At-Stream-Velocity Pumping Sediment Sampling System
The sampling system collects water-sediment samples at local stream velocity from any point in an open channel flow. The system uses a flow-through Pitot tube as a combination velocity...

Experiments with Unconventional Storm Overflows
Models of four typical jet siphon type stilling pond storm overflows, the bypass being through an air regulated siphon, were tested. The main aim of the present experiments was to reduce...

Environmental Control of Bilharzia Snails in Small Reservoirs
In tropical reservoirs certain snails which transmit schistosomiasis, a parasitic disease, may be controlled by engineering methods. This disease, also known as bilharzia, is a chronic,...

Siphons: Some Scale-Effects in Models
A simple design of storm-overflow siphon for the city of Liverpool, England, has been tested in the laboratory at scales from 1/3 to 1/80. In this way, the effect of the absolute size...

 

 

 

 

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