scholarly journals PENINGKATAN KINERJA SISTEM PROPULSI KAPAL PENANGKAP IKAN TRADISIONAL TYPE PURSEINE 30 SD 90 GT MENGGUNAKAN SISTIM PROPULSI HYBRID

2011 ◽  
Vol 16 (2) ◽  
pp. 106
Author(s):  
Mohd Ridwan

Mohd Ridwan, in this paper explain that traditional fishing vessels built in the shipyard of the people is a cultural heritage which needs to be conserved, and empowered through the application of ship science and technology to build fishing boats for fishermen of all types, shapes and sizes of ships, equipped with fishing technology. Repairs to the feasibility of traditional fishing vessels to sail like stability, ship construction needs to be done. Similarly, his case should be applied to ship propulsion technology that remained operational needs based on size of vessel forms and types of fishing vessels. The design of an appropriate propulsion can provide benefits in the form of operational cost savings by more than 10% through the use of hybrid propulsion systems. Hybrid propulsion system is a mix of main engine (motor fuel or gas fuel MDO) with electric motor and propeller to suit the use of hull form and ship propulsion systems (matching the propeller and engine) is at the core of this concept in this article and next to be research. Besides these traditional ship the product to be supported primarily by imposing government standards for a fishing vessel, for fishermen as users can easily calculate the economic value of investment will they planted in fishing effort at sea. Keywords : Fishing Boat Traditional, Hybrid Propulsion, Main Engine, Propeller, Operatinal Cost.

Author(s):  
Karl-Johan Reite ◽  
Jarle Ladstein ◽  
Joakim Haugen

This paper describes a method for providing real time decision support based on measurements rather than optimizing a mathematical model. The proposed method is thus beneficial for systems for which the modelling would be inaccurate, the dynamics and complexity of the system would make it difficult to optimize in real time, or the risk of returning local minima is not acceptable. The proposed method is implemented on four fishing vessels. These vessels are complex and give the skipper many choices related to how the vessel is operated. The developed tool advises the crew on in real time on operational decisions, particularly on the use of various diesel electric and diesel mechanic propulsion modes, including decisions such as the use use of shaft generator, direct coupling between main engine and propeller or not, propeller pitch, etc. This will presumably reduce both fuel consumption and emissions of CO2 and NOX. Some examples of obtainable results from both onshore analyses and the onboard application are presented to demonstrate the methods applicability.


2019 ◽  
Author(s):  
R. Ayers ◽  
G.P. Course ◽  
G.R. Pasco

[Extract from Executive Summary] To enhance sustainability and foster resilience within Scotland’s inshore fishing communities an effective system of collecting and sharing relevant data is required. To support business decisions made by vessel owners as well as informing fisheries managers and those involved in marine planning it will be vital to collect a range of information which will provide a robust understanding of fishing activity, the economic value of the sector and its importance within local communities. The SIFIDS Project was conceived to assist in attaining these goals by working alongside fishers to develop and test technology to automatically collect and collate data on board vessels, thereby reducing the reporting burden on fishers. The project built upon previous research funded through the European Fisheries Fund (EFF) and was designed to deliver a step change in the way that inshore fisheries in Scotland could be managed in cooperation with the industry. The project focussed on inshore fishing vessels around Scotland, where spatio-temporal information on the distribution of vessels and associated fishing effort is data deficient. The whole project was broken down into 12 highly integrated work packages. This is the integrated report for work packages 2A and 2B, entitled’ Development and Pilot Deployment of a Prototypic Autonomous Fisheries Data Harvesting System’ (2A) and ‘Investigation into the Availability and Adaptability of Novel Technological Approaches to Data Collection’ (2B).


2019 ◽  
Author(s):  
Soetyono Iskandar ◽  
Mochamad Bruri Triyono ◽  
Bambang Sugiyono Agus Purwono ◽  
A Muhammad Idkhan

This paper deals with explaining the importance of higher education research that is directed to the design the strategy of simulation of powered LED lamp system solar cell in future fishing vessels. The principal aim of this research is the utilization of renewable energy with the use of solar cell technology as a driver of lux system on fishing vessels. This research was a panel solar cell yields its power is 100 WP. It is applied to implement LED lamp with its power 100 WP. This wind energy is environmentally (clean energy), economically (cheapest), easy to operate and easy to maintain, also renewable energy. The method of analysis is quantitative approach using one way classification (analysis of variance or design of experiments). The finding of this research is accepted the null hypothesis or not differ significantly at 5% from each independent variable. The scenario and the parameters during the strategy simulation powered LED, solar cell as a power generated by The F-count is higher than Ftable (3635,27 > 5,77), so H0 is rejected, it means at least there is one light intensity mean value that is produced by the different sun panel significantly on the real stage of 5%. It is expected to encourage and motivate the fisherman public in developing and applying this technology, so that it can upgrade the fish production quality and increase the economic value of fishermen society.


1983 ◽  
Vol 40 (7) ◽  
pp. 968-982 ◽  
Author(s):  
Rögnvaldur Hannesson

The traditional "fishing effort" approach to fisheries economics implies the existence of a production function with fishing effort and fish abundance as independent variables. It is shown how the existence of bionomic equilibrium depends on the shape of this production function, as well as the demand and effort cost functions. The analysis is related to the recent discussion of collapses in fisheries occurring as a result of fish availability being inversely related to fish abundance. A Cobb–Douglas production function, with effort and fish biomass as independent variables, is estimated for the Lofoten fishery. This indicates that the availability coefficient increases as the fish stock is depleted. Finally, the fishing effort approach is integrated with neoclassical production analysis. Fishing effort is regarded as being produced by labor and capital, and an effort frontier production function is estimated for selected Norwegian fisheries. This makes it possible to estimate optimal vessel size and capital intensity. Fishing vessels appear to be undersized but not too capital intensive.


2021 ◽  
Author(s):  
Edgar Steven Chavez ◽  
Erick Galarza ◽  
Jhonatan Lulo ◽  
Nain Maximo Ramos ◽  
Víctor Acosta ◽  
...  

In recent years, the shipbuilding industry has been incorporating different technological innovations that adapt innovative techniques such as image correlation for 3D reconstruction, reduced order modeling methods for digital twins, pixel amplification techniques to measure vibrations, among other methodologies. The advancement of these methodologies help to obtain visual resources that allow a better understanding of a given phenomenon, which complements the results found numerically, analytically or experimentally. The present study collects data from different configurations of ship propulsion plants, which are based on real operating conditions. The operating conditions are given for fishing vessels; the "navigation" condition is selected as being the most frequent and the "fishing operation" as being the most energetically critical. These conditions are attached to the choice of the ship's propeller. For the propeller, the diameter, the number of blades and the length of the drive shaft from the main engine position to the propeller are considered. Three engine power levels (low, medium and high) are selected, represented by 300, 850 and 1300 HP engines. The aforementioned operating conditions are used to calculate the efficiency of the propulsion plant, obtaining several combinations. Furthermore, these configurations are expressed by means of Sankey diagrams and illustrations of the plant configurations in 3D using WebGL and Threejs libraries. Complementarily, these data are observed in an online simulator called "ShipSim", using "html" coding.


Author(s):  
M Benatmane ◽  
B Salter

With the ever tightening of budgets and legislation, new vessel builds are facing tough times.  The future maritime industry requires more efficient vessels to minimise ship operational costs with cleaner technologies that meet stringent environment regulations, reduce greenhouse gas emissions, specifically carbon emissions. Emissions reduction continues to be high on the agenda for the marine industry, it is responsible for about 2.5 percent of global greenhouse emissions1 and is under great pressure to reduce its environmental impact. With pressure comes the opportunity to incentivize innovation, developments and implementation of energy efficient measures, both design and operational. Naval propulsion systems are no different from other industries, and the industry is exploring ways to optimise propulsion and electrical power generation systems architecture for better performance and efficiency. Electric technology plays a leading role. The paper will: Provide a brief overview about the hybrid propulsion concept, with key electrical, mechanical qualities and issues. Describe different designs configurations and performances of hybrid propulsion systems from demonstrated and operational systems in the commercial and naval world. Cover the lessons learnt in technologies and controls used on such systems. Examine future architectures including energy storage and explore the benefits and the flexibility these can bringto the hybrid propulsion sphere.


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