This task will consist in a compilation, through surveys on existing
technical literature and data both from scientific and commercial sources, of a
catalogue of available technical solutions for the improvement of energy efficiency
in fisheries. This catalogue should cover aspects such as but not limited to, 1)
vessel design 2) propulsion systems 3) efficiency of the on board energy consumers,
4) alternative energy sources 5) fishing gear design for greater energy efficiency
6) fishing tactics For each of the technical solutions proposed, a detailed technical
analysis should be carried out, covering aspects like functioning principles, potential
savings, reliability, maintainability, examples of current installations, etc.
Task 3.1: Analysis of potential fishing vessel design and engineering topics
- Task 3.1a: Selection of topics for further
study
- Task 3.1b: Energy
performance evaluation of fishing vessels by simulation
Task 3.2: Analysis of potential fishing gear design and engineering topics
Fishing gear design for greater energy efficiency: gear drag in relation to towing speed and swept volume, lower contact and drag of components running over
the sea bed, lower drags of beams by hydro-dynamical shapes, self-spreading ground
gear, self-spreading twine orientation, kites instead of floats to open nets, use
of thinner twines for netting, use of hydro-dynamically more efficient otter boards,
gear design changes, use of alternative stimulation, multi-rigs vs. single-rigs,
etc.
In particular:
- Task 3.2a: Ways to decrease gear drag by fishing gear design optimization
- Task 3.2b: Ways to decrease gear drag by hydrodynamical optimization
- Task 3.2c: Ways to decrease gear drag by alternative stimulation
- Task 3.2d: Ways to decrease gear drag by decreasing ground contact
- Task 3.2e: Ways to decrease gear drag by gear replacement
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