To conduct field work
in order to collect data on the detailed breakdown
of energy consumption by different devices on board. This information should be
done under different fishing conditions. To achieve this, adequate measuring equipment
should be installed on board of various types of fishing vessels. The collection
of data should include the measurement of energy consumption in each device
used
during vessel operations in different working conditions: sailing to and from the
fishing ground, fishing operations or fish processing. Primary energy consumption
may be obtained by adequate recording of engine parameters such as engine characteristics,
time and regime of operation, fuel consumption, etc.
Task 2.1: Selection of most promising areas
The role of energy use and associated costs is not equal among the various
metiers (combinations of vessel type and fishing gear type). In general towed gears
are more energy consumptive than static gears, but the earnings from catches in
most cases will exceed the higher expenses, particularly when fuel prices are relatively
low. Due to lower energy costs static gears may be more viable from an economic
point of view, even in case of lower catch rates.
Under Task 2 the technological team (vessel design, machinery and propulsion; fishing
gear experts) is to determine details of energy flows during fishing operations.
Technological developments concerning energy saving often take long time, implementation
depends on perceptions in the industry, and the scope of changes is great, which
obstructs an entire coverage of all areas, metiers, and potential solutions. In
view of these complexities, it seems essential to select the most promising topics
and focus on them.
The topics of energy savings with highest priority must be selected on the basis
of the following criteria:
- Effect on energy use and costs
- Effect on value of production (catch)
- Effect on other costs (operational and capital)
- Investment requirements (incl. the feasibility of such investment in view of recent
performance, e.g. will the bank provide additional credit)
- Overall effect on profitability
- Potential period of implementation on sufficient scale:
- Short term (1-2 years), technology is in fact available in other areas and needs
to be adapted to fishing practice
- Medium term (3-5 years), technology needs adaptation and testing before being suitable
for implementation in fishing
- Long term (over 5 years), new technology needs to be developed, probably as part
of broader technological developments.
- Perceptions of the fishing sector / fishermen –
where do they believe that savings
could be achieved, especially in the short term? The type of technological tests
to be carried out or technological adaptations to be studied under Task 2 will be
selected within a cooperative effort of technologists, fishermen and economists.
Task 2.2: Collection of data from national projects
The proposed budget does not allow extensive trials at sea on commercial
fishing vessels. It is therefore proposed to link into existing national research
projects, and feed the information resulting from these into a cohesive data analysis
and economic evaluation.
Task 2.3: New data collection at sea
In a number of cases additional data collection will be carried out under
this study on the detailed breakdown of energy consumption by different devices
on board under different fishing and operational conditions, such as sailing to
and from the fishing ground, fishing operations or fish processing, as selected
in Task 2.1.
Not all trips foreseen are described here in detail (See Task 2.2), but in some
cases more specific information could be given.
Task 2.4: Numerical simulations of fishing gear geometry and drag
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