Acronym NA
Category
Aquaculture
Title Klammerløs og skumfylt PE-merd - Staple-free and foam-filled PE cage Programme National Programme
Instrument (FP6)
Contact Type (FP7)
Strand (Interreg)
NA
Theme (FP7)
Activity Area (FP6)
Regional Area (Interreg)
Action (COST)
NA
Specific Programme (FP7)
NA
Funding source National Coordinator Egil Lien Coordinator email egil.lien@ntnu.no
Coordinator institution
NTNU - Norwegian University of Science and Technology (Norway)
Institutions involved
NA
Start year 2010 End year 2012 Funding (€) € 496,471 Website https://prosjektbanken.forskningsradet.no/en/project/FORISS/200847?Kilde=FORISS&distribution=Ar&chart=bar&calcType=funding&Sprak=no&sortBy=date&sortOrder=desc&resultCount=30&offset=0&Prosjektleder=Egil+Lien Summary A new type of floating collar for breeding cages will be developed. Instead of the traditional PE cages which consist of 2 or more standard pipe profiles held together with clamps every 2-3 meters, a single oval shaped pipe profile shall be developed. This pro filet must be foam-filled, ie with varying density. The foam filling shall take place in the extrusion process itself and replace the use of the polystyrene in the pipes which makes the system sink-proof.
Foam-filled tubes:
An injection technique for foam filling of small pipes will be developed at Boralis Innovation A / S's research laboratory in Linz, Austria. This involves adapting the granules for the process itself.
In this context, mathematical models will be developed that enable analyzes of this type of profile. Mechanical properties will be significantly different from standard pipe profiles.
Foam-filled full-scale round pipes will then be produced at Helgeland Plast, Mo i Rana.
Oval pipe profiles.
A production line, extruder line, will be developed for oval pipe profiles at Helgeland Plast. This involves a complete rebuild of the entire process line, extruder unit, nozzle section, cooling and cutting line. Oval, non-circular profiles are not built to date.
All welding equipment is today adapted to standard pipe profiles. Therefore, completely new welding machines must be developed for mounting complete cages on site. Solid and oval profiles involve the development of new clamping units and planing mechanisms on these machines. Likewise, there will be a need to weld the pipes together at fixed angles in order to be able to produce polygonal cage units.
The mechanical properties of the profiles must be studied thoroughly. They are not covered by current industry standards. There will therefore be a need to develop mathematical models that describe the mechanical properties in connection with the development of prototypes.
In the project, at least cages with at least 2 different cross-sectional profiles will be tested.
Keywords
Cage aquaculture;
Engineering;
Fish;
Open sea aquaculture;
Marine Region
76
Not associated to marine areas
0
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