2-Chamber-OrganismBypass
The 2-Chamber-Organismbypass is a new technology for restoring the water continuum in a gentle and simply way. The considered organism bypass is a fish lock, with an innovative hydraulic connection. Due to this connection it is possible to use the leading water flow for generating electrical energy with low additional costs.
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Further variations of the 2-Chamber-Organismbypass are considered, as shown below.
Fish-lock designs
The 2-Chamber-Organismbypass can be manufactured from different materials. For the standard version Fiberglass pipes are used. For big or individual produced plants the use of concrete can be advantageous. Next to the inclined fish-lock variation the innovative hydraulic connection can also be used for fish lift systems, in order to overcome high heads in small areas. For this variation moving baskets are additionally necessary.
Inclined pipe implementation
Inclined concrete implementation
Vertical pipe implementation
Vertical concrete implementation
Sluice gate design
Usually four vertical sluice gates are used. In order to reduce the costs and protect the sluice gates from icing it is considered to use two horizontal slice gates instead.
Four vertical sluice gates
Two horizontal gates
Design with turbine or throttle
The 2-Chamber-Organismbypass can use the leading flow to provide elecrtical energy with low additional costs. For sites with low head, small flow rates or no need of energy provision, the turbine can be replaced by a throttle. First tests with very small leading flows show, that a fish migration is also possible.
Turbine
Throttle
Hydraulic connection
Also further hydraulic connections are considered, for example to enable a flow through the turbine in just one direction.
Standard-connection
Advantages:
+ no additional sluice gates or valves
+ cleaning effect due to the change of the water direction
Extended-connection
Advantages:
+ one flow direction at the turbine (higher efficiency)
+ no reverse of the generator polarity is necessary